A bike accelerate uniformly from rest to a speed of 7.10m/s over a distance of 35.4m. Determine the acceleration of the bike

Their electrical potential energy will decrease, their kinetic energy will increase, and they will travel towards each other.

When two negative charges are released and constrained to remain close together, the charges will be repelled by each other due to their opposite electrical charges.

This repelling force causes the charges to move away from each other, increasing their kinetic energy and decreasing their electrical potential energy.

Since they are constrained to remain close together, they will travel towards each other until they come into contact. At that point, the electrical potential energy will reach its minimum, and the kinetic energy will reach its maximum.

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The dragster's change in velocity due to the parachute can be calculated using the kinematic equation:

Δv = aΔt

where Δv is the change in velocity, a is the acceleration, and Δt is the time interval during which the acceleration occurs. In this case, the dragster is initially travelling east, so its velocity is positive, and the parachute applies a force in the opposite direction, resulting in a negative acceleration.

Given that the acceleration is -10 m/s² (westward) and the time interval is 4.5 seconds, we can calculate the change in velocity as:

Δv = (-10 m/s²) x (4.5 s) = -45 m/s

Therefore, the dragster's change in velocity due to the parachute is -45 m/s (westward). This means that the dragster's velocity is reduced by 45 m/s in the westward direction over the 4.5-second interval during which the parachute is deployed.

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The change in velocity due to the parachute is -45 m/s east

What is velocity ?

Velocity is a vector quantity that describes the speed and direction of motion of an object. In other words, velocity is the rate at which an object changes its position in a specific direction.

Velocity is expressed in units of distance per time, such as meters per second (m/s) or kilometers per hour (km/h)

Velocity is different from speed, which is also a measure of the rate of motion but only describes how fast an object is moving, without taking into account the direction of motion.

we will use the formula :-

change in velocity = acceleration x time

where acceleration is the rate at which the dragster slows down, and time is the duration for which it slows down.

Here, the dragster is travelling east, and the parachute applies a force in the opposite direction (west), causing it to slow down. So, the acceleration is -10 m/s^2 (negative because it's in the opposite direction to the velocity).

The time for which the dragster slows down is 4.5 seconds.

Therefore, the change in velocity due to the parachute is:

change in velocity = acceleration x time

change in velocity = (-10 m/s^2) x (4.5 s)

change in velocity = -45 m/s east

Note that the velocity is negative because the dragster is slowing down, and it's still travelling east (i.e., in the positive direction).

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Large solar eruptions near sunspots are known as coronal mass ejections (CMEs).

Coronal mass ejections (CMEs) are huge explosions of plasma and magnetic fields from the sun's corona, the outermost layer of the sun's atmosphere. Sunspots are areas on the sun's surface where the magnetic field is much stronger than surrounding regions, which can lead to the buildup of energy that can trigger a CME.

CMEs can release vast amounts of energy and can cause solar flares, geomagnetic storms, and other space weather phenomena that can affect our planet.

They can also pose a danger to astronauts and satellites in space. Scientists study CMEs to better understand the sun's behavior and how it affects Earth and the rest of the solar system.

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Answer:

If humans one day encountered aliens, it is unlikely that we would share any existing measurement system with them. Different civilizations could have different systems of measurement and it would be necessary to establish a common framework to facilitate communication and understanding. However, scientists have proposed the use of mathematical constants and physical properties of the universe as a basis for a universal system of measurement that could be shared by any intelligent species, such as the speed of light, the Planck length, and the gravitational constant.

The period of motion of a vertical spring that stretches 3.9 cm when a 10-g object is hung from it is 0.883 s.

Period of motion = 2π√(m/k) Where,m = mass of the object k = spring constant. Given data:Spring stretches = 3.9 cm. Mass of the object = 10 g = 0.01 kg. New mass = 25 g = 0.025 kg. Formula used:Period of motion = 2π√(m/k). Calculation:First we need to calculate the spring constant using the formula below:F = -kx Where,F = force (in N)x = extension (in m)k = spring constant.We have the value of x, and we can calculate the force.F = ma Where,a = acceleration (in m/s²)m = mass (in kg)

We can assume that acceleration is the same as gravity (9.8 m/s²) since the object is hung vertically.F = (0.01 kg) × (9.8 m/s²) = 0.098 N.Since the spring stretches by 3.9 cm = 0.039 m, we can calculate the spring constant:k = F/x = 0.098 N / 0.039 m = 2.51 N/m.Now we can calculate the period of motion using the formula below:Period of motion = 2π√(m/k)Period of motion = 2π√(0.025 kg / 2.51 N/m).Period of motion = 0.883 s. Therefore, the period of motion is 0.883 s.

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Velocity refers to measuring the speed and direction of change in the position of an object. The speed of the object at t = 3.00 s is v = 0.35 m/s.

At t = 3.00 s, the object with a mass of 1.23 kg will have a speed given by the equation v = sqrt(2*F/m), where F is the total force experienced by the object and m is its mass.

Substituting the values for F, A, B, C and m, we get:
[tex]v = sqrt(2.(0,234.i+(1,15 - 0,345.3)j^)/1,23)[/tex]

Simplifying, we get:
v = [tex]sqrt(2.(0,234.j+(-0,035)j)/1,23)[/tex]

Using the Pythagorean theorem, we can calculate the magnitude of the vector v:
v = [tex]sqrt ((0,234.0,234) + (-0,035.-0,035))/1,23)[/tex]

Therefore, the speed of the object at t = 3.00 s is v = 0.35 m/s.

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Answer:

See below.

Explanation:

When the 1500 kg car collides with the wall and rebounds at a speed of 5.00 m/s, we can calculate the change in the car's velocity using the following formula:

Δv = v2 - v1

Where Δv is the change in velocity, v2 is the final velocity, and v1 is the initial velocity. Substituting the given values, we get:

Δv = 5.00 m/s - 20.0 m/s

Δv = -15.0 m/s

The negative sign indicates that the direction of the car's velocity has reversed, or that the car is now moving to the left. To calculate the magnitude of the change in velocity, we take the absolute value:

|Δv| = |-15.0 m/s|

|Δv| = 15.0 m/s

Therefore, the magnitude of the change in velocity is 15.0 m/s.

Now,

To find the magnitude of the average force acting on the car during the collision, we can use the impulse-momentum theorem, which states that:

Impulse = change in momentum

Average force = Impulse / time

The change in momentum of the car is given by:

Δp = mΔv

where Δv is the change in velocity calculated in the previous answer and m is the mass of the car.

Δp = 1500 kg × (-15.0 m/s)

Δp = -22500 kg·m/s

The impulse acting on the car during the collision is equal to the change in momentum:

Impulse = Δp = -22500 kg·m/s

To find the magnitude of the average force acting on the car during the 250 ms collision, we divide the impulse by the duration of the collision:

Average force = Impulse / time

Average force = -22500 kg·m/s / 0.250 s

Average force ≈ -90,000 N

The negative sign indicates that the force is in the opposite direction of the car's motion, or to the left. Therefore, the magnitude of the average force acting on the car during the collision is approximately 90,000 N.

A change in velocity in short period of time means the acceleration is large, hence the net force must be proportionately large as well.

A force is a physical quantity that induces a body to undergo an alteration in speed, direction of motion, or shape. A force can be classified as a push or a pull. When forces are equal, the forces are balanced and the object is not moving. Otherwise, if the forces are not equal, making it unbalanced will not give the object any movement.

The force that induces the change in the speed or direction of an object is referred to as a net force. The net force is equal to the product of the mass of the object and its acceleration. Newton (N) is the unit of measurement for force.

When a ball bounces against a wall, there will be a large change in velocity in a short period of time. This means the acceleration is large, hence the net force must be proportionately large as well.

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Potential Energy of Object W, X, Y and Z are 0 J, 7.84 J, 15.7J and 23.5J, for better understand we have to know the meaning of potential energy.

Potential energy in physics is the energy that an item retains as a result of its location in relation to other objects, internal tensions, electric charge, or other elements. Potential energy develops in systems having components whose configurations, or relative positions, determine the amount of the forces they apply to one another.

Potential Energy of an Object = m * g * h

Where, m = mass,

g = gravity, and

h = height

Potential Energy of Object W = 2 * 9.8 * 0

= 0 J

Potential Energy of Object X = 2 * 9.8 * 0.4

= 7.84 J

Potential Energy of Object Y = 2 * 9.8 * 0.8

= 15.68 J

≈ 15.7 J

Potential Energy of Object Z = 2 * 9.8 * 1.2

= 23.5 J

Therefore, Potential Energy of Object W, X, Y and Z are 0 J, 7.84 J, 15.7 J and 23.5 J.

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The hydrostatic transmission's overall efficiency in percent can be calculated using the given information as follows:

Given that:

Formula for calculating overall efficiency of HST is given as:

Substituting the given values in the above formula, we get:

Overall efficiency of HST = 0.91 × 0.93 × 0.95 × 0.91 = 0.7460585 = 74.61%

Therefore, the overall efficiency of the hydrostatic transmission is 74.61% (rounded to two decimal places).

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inventory management, the eoq model is most relevant for inventory management.  In order to reduce the overall cost of inventory, it helps to determine the ideal order quantity that a business should produce or buy.

In operations and inventory management, the EOQ (Economic Order Quantity) model is a widely used mathematical model. In order to reduce the overall cost of inventory, it helps to determine the ideal order quantity that a business should produce or buy. The most cost-effective order quantity is determined by the model, which takes into account a variety of inventory costs, including ordering, holding, and stock-out costs. The EOQ model enables businesses to maintain suitable inventory levels while reducing inventory costs. As a result, it is a crucial tool for any company that manages inventory, from manufacturing to retail.

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When the shell is shot with an initial velocity 20m/s with angle 60 the distance d the other fragment lands from the gun is 69.3 m.

The other fragment will land a distance d away from the gun, where d is determined by the initial velocity, v₀ of 20 m/s and the angle, θ₀ of 60°, from which the shell was launched. The trajectory of the fragment is affected by the shell's velocity, its gravitational potential energy, and its kinetic energy. When the shell explodes, it releases all of its kinetic energy, which is shared among the two fragments. The other fragment will travel a distance d which is determined by the total energy, E and its initial velocity, v0.

To calculate d, we can use the equation:

d = (2E/m)1/2sin(2θ₀) / v₀,

where m is the mass of the fragment and E is the total energy.

Therefore, the distance d the other fragment lands from the gun is given by: d = (2E/m)1/2sin(2θ₀) / v₀

= (2×202×sin(120°))/20

= 40×sin(120°) = 40×√3 = 69.3 m.

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The radius of the smaller semicircle is 2cm.

[tex]B_1= \frac{u0I}{T} (\frac{1}{R_1} -\frac{1}{R_2} )[/tex]

[tex]B_2= 2.\frac{u0I}{2} \frac{1}{R_2} =\frac{uoI}{R_2}[/tex]

We can now solve for r by setting $B_1=-B_2

​[tex]\frac{u0I}{2} (\frac{1}{4} -\frac{1}{r} )= \frac{uoI}{r}[/tex]

r= 2cm

A magnetic field is a force field that is created by moving electric charges. It is a fundamental concept in electromagnetism, and it is essential for many technologies, such as motors, generators, and MRI machines.

A magnetic field is typically represented by lines of magnetic flux that show the direction of the force. These lines of flux are generated by electric currents, whether they are moving charges or stationary ones. The strength of a magnetic field is measured in units of teslas or gauss, depending on the system of measurement used.

Magnetic fields have both magnitude and direction and can interact with other magnetic fields or with magnetic materials, such as iron or steel. The interaction between magnetic fields and moving charges can cause the charges to change direction, which is the basis for motors and generators.

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a. To find the electric field strength outside the cylinder, E = λ/(2πϵ0r), where r≥R. b. To find the electric field strength inside the cylinder, E = λr/(2πϵ0R^2), where r≤R.

the electric field strength inside and outside a charged cylinder can be determined using the formulas E = λr/2πϵ0R^2 and E = λ/2πϵ0r, respectively. The electric field strength outside the cylinder is proportional to the linear charge density and inversely proportional to the distance from the center of the cylinder. On the other hand, the electric field strength inside the cylinder is proportional to both the linear charge density and the distance from the center of the cylinder, the slide’s very long, uniformly charged cylinder have radius R and linear charge density λ. a. Find the cylinder's electric field strength outside the cylinder, r≥R.  but inversely proportional to the square of the radius of the cylinder. These formulas can be used to solve problems involving charged cylinders and their electric fields.

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An object is "in motion" if its position changes relative to another object.

Motion is a fundamental concept in physics, which describes how objects move and change position over time. When we say that an object is in motion, we mean that it is changing its position with respect to some reference point or frame of reference.

A reference point is a fixed point in space that we use as a point of comparison to measure an object's position and motion. For example, when we say that a car is moving on a highway, we are using the highway as a frame of reference to measure the car's motion.

An item is considered to be "in motion" if its position in relation to another object changes.

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The change in momentum of ball B is greater than the change in momentum of ball A (|Delta P_{B}| < |Delta P_{A}|) when two 0.20-kg balls, moving at 4 m/s east, strike a wall. Ball A bounces backwards at the same speed, while ball B stops.

When the two balls strike the wall, they experience a change in momentum due to the impulse of the wall.

The initial momentum of the system (two balls and the wall) is:

P_{initial}= m_{A}v_{A} + m_{B}v_{B}

After the collision, ball A bounces backwards with the same speed, so its final momentum is:

P_{A} = -m_{A}*v_{A}

Ball B stops, so its final momentum is:

P_{B} = 0

The total final momentum of the system is:

P_{final} = P_{A} + P_{B} = -m_{A}*v_{A}

The change in momentum of ball A is:

Delta P_{A} = P_{A} - m_{A}v_{A} = -2m_{A}*v_{A}

The change in momentum of ball B is:

Delta P_{B} = P_{B} - m_{B}v_{B} = -m_{B}v_{B}

Therefore, |Delta P_{B}| < |Delta P_{A}|, which means that option (d) is the correct answer.

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The capacitance of the circuit (in f) is  2.31×10⁻⁵F for the rc circuit with a time constant of 5.35 s. if the total resistance in the circuit is 231.2 k.

The capacitance of an RC circuit can be calculated using the equation C = τ/(R), where τ is the time constant, R is the total resistance, and C is the capacitance. For this RC circuit, the time constant is 5.35s and the total resistance is 231.2 k. Therefore, the capacitance is 5.35s/(231.2k) = 2.31×10⁻⁵F.

Time constant of the RC circuit, τ = 5.35s

Total resistance in the circuit, R = 231.2 kΩ = 231200 Ω

Capacitance of the circuit = ?

We know that, Time constant (τ) of a RC circuit = R × C.

where, R is the resistance in ohms, C is the capacitance in farads. Substitute the given values in the above equation:

τ = RC

5.35 s = R × C231200 Ω × C = 5.35 s

C = 5.35 s / 231200 Ω

C = 2.31 × 10⁻⁸ F.

Therefore, the capacitance of the circuit is 2.31 × 10⁻⁸ F.

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Some factors which may cause errors in the measured values include inaccurate measuring instruments, poor technique, incorrect calculations, and poor experimental conditions.

Some factors that may have caused errors in your measured values are: inaccurate measuring instruments, poor technique, incorrect calculations, and poor experimental conditions.

The impulse is equal to the change in momentum. The measured values for impulse and calculated values for change in momentum should be equal. The impulse is equal to the product of the average force applied to the object and the time during which it was applied. The change in momentum is equal to the product of the object's mass and its change in velocity, and it can be calculated using the equation Δp = mΔv.

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When Ignacio shares 2.1 liters of water equally into 7 containers, the milliliters in each container are 300 milliliters. Therefore, the correct option is B.

It is given that Ignacio shares 2.1 liters of water equally into 7 containers. To convert liters into milliliters, we multiply the given value by 1000. According to conversion unit, 1 liter = 1000 milliliters.

Therefore, 2.1 liters = 2.1 * 1000 = 2100 milliliters.

Now, to find milliliters in each container, we divide the total volume of water by the total number of containers. Therefore, the number of milliliters in each container is:2100 / 7 = 300 milliliters.

Hence, the correct answer is option (B) 300 milliliters.

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Answer:

just write 6t and the same

A bullet is shot horizontally from shoulder height (1.2 m) with an initial speed of 682 m/s.

The kinematic equation of motion for the horizontal motion of an object

i.e, s = vt

Where s is the displacement,

v is the initial speed,

and t is the time.

(a) Initial vertical velocity (u) = 0 m/s

Acceleration (a) g = 9.8 m/s²

(since the bullet is moving vertically downwards)

Vertical displacement (s)H = 1.2 m

By using the following kinematic equation of motion: v² = u² + 2as

Putting the values in the above equation,

0² = 682² + 2 (-9.8) (1.2)

s = 47.999m

since the bullet will hit the ground at 48 m.

Therefore, the time taken by the bullet to hit the ground is given by the

s = ut + 1/2 a t²

Hence, 48 = 0 × t + 1/2 (9.8) t²

t = 3.91 seconds.

(b) horizontal velocity (u) = 682 m/s

Time (t) = 3.91 seconds.

By using the following kinematic equation of motion:

s = ut

Putting the values in the above equation,

s = 682 × 3.91s

= 2668.62m

Thus, the bullet will travel a distance of 2668.62 m.

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In case, when two cylindrical wires of different diameters are connected in series, an emf (electromotive force) is applied across the ends.

a. The side with the smaller diameter cylindrical wire on the left will have a larger current magnitude. This is because the current density, which is defined as the current per unit cross-sectional area of the wire, is inversely proportional to the cross-sectional area of the wire. Since the left side has a smaller cross-sectional area, it will have a larger current density and therefore a larger current magnitude.

b. The potential difference magnitude is the same on both sides. This is because the potential difference between two points is determined by the emf of the battery and is independent of the wire's properties. Therefore, the potential difference between points A and B is the same on both sides of the wire.

c. The side with the smaller diameter cylindrical wire on the left will have a larger drift velocity magnitude. This is because the drift velocity of electrons in a wire is proportional to the current density, which as stated above, is inversely proportional to the cross-sectional area of the wire. Since the left side has a smaller cross-sectional area, it will have a larger current density and therefore a larger drift velocity magnitude.

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The correct option is option A) It stays constant.The horizontal component of the velocity will remain constant with time after the projectile is fired.

Projectile motion is the movement of an object that has been thrown, launched, or shot into the air. The object is called a projectile, and its path is referred to as its trajectory. Projectile motion can be predicted and analyzed by physics, but it is not as straightforward as it may seem. The following are some of the properties of projectile motion: Acceleration due to gravity (9.8 m/s²) Act of the horizontal and vertical components of velocity (v) Path of the projectile in a parabolic shape. The horizontal component of the velocity will remain constant with time after the projectile is fired.

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The moment of inertia of the square about an axis through the center and perpendicular to the plane of the square is I = m a²/3.

Step by step explnation:

The moment of inertia about an axis through the center and perpendicular to the plane of the square can be found using the parallel-axis theorem. The moment of inertia about the center of the square is [tex]I_c_m[/tex] = (m a²)/6.

Using the parallel-axis theorem, the moment of inertia about an axis through the center and perpendicular to the plane of the square is I = [tex]I_c_m[/tex] + m a² = ma²/3.

Thus, the moment of inertia of the square about an axis through the center and perpendicular to the plane of the square is I = m a²/3.

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The maximum amplitude of the motion which will allow the mass to stay in contact with the platform is 0.062 m.

This can be calculated by using the equation amax = (2π/T)2A, where A is the maximum amplitude, and T is the period of the motion. In this case, T is 0.50 s, and g (the acceleration due to gravity) is 9.81 m/s2, so we can calculate A:

A = (2π/T)2g = (2π/0.50)2 × 9.81 = 158 × 9.81 = 1543.38

Therefore, A = 1543.38/158 = 9.81 m/s2 = 0.062 m.

Alternatively: given,T = 0.50 s,The acceleration due to gravity, g = 9.81 m/s²Maximum acceleration, amax = g = 9.81 m/s². The maximum acceleration that will allow the object to remain in contact with the platform at all times is when amax = !222A = (2π/T )A ) 9.81 ...(1)From the equation (1), we get 158 A = 9.81 (2π/0.50)A = (9.81 (2π/0.50))/158 = 0.062 m. Therefore, the maximum amplitude of the motion which will allow the mass to stay in contact with the platform throughout the motion is 0.062 m.

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Answer:

To make it around the circle, the tension in the string must provide the necessary centripetal force to keep the ball moving in a circle. At the top of the circle, the tension in the string must provide all the force to keep the ball moving in a circle. At the bottom of the circle, the tension in the string must provide the centripetal force in addition to the force of gravity.

We can use the centripetal force formula to solve for the minimum velocity: F_c = m * a_c

where F_c is the centripetal force, m is the mass of the ball, and a_c is the centripetal acceleration.

At the top of the circle, the centripetal force is equal to the tension in the string: F_c = T

where T is the tension in the string.

At the bottom of the circle, the centripetal force is equal to the sum of the tension in the string and the force of gravity:

F_c = T + mg

where m is the mass of the ball, g is the acceleration due to gravity (9.8 m/s^2), and T is the tension in the string.

The centripetal acceleration is given by: a_c = v^2 / r

where v is the velocity of the ball and r is the radius of the circle.

Since the circle has a radius of 0.33 m, we can substitute this into the equation for a_c: a_c = v^2 / 0.33

Combining these equations, we get:

At the top of the circle: T = m * v^2 / 0.33

At the bottom of the circle: T + mg = m * v^2 / 0.33

We can solve for the minimum velocity by using these two equations to eliminate the tension in the string: m * v^2 / 0.33 + mg = m * v^2 / 0.33

Simplifying this equation, we get: v = sqrt(0.33 * g)

Plugging in the values, we get: v = sqrt(0.33 * 9.8) = 1.81 m/s

Therefore, the minimum velocity that the ball must have to make it around the circle is 1.81 m/s

Angela can calculate the frictional torque applied to the wheel by using a torque wrench. The torque wrench measures the amount of torque needed to rotate the wheel, which is equal to the frictional torque.

To calculate the frictional torque applied to a wheel, Angela can use a torque wrench. A torque wrench is a tool that is used to measure the amount of torque required to rotate the wheel.

When the wheel is turned with the torque wrench, the amount of torque needed to rotate it is equal to the frictional torque that the wheel is experiencing.

By measuring the torque required to rotate the wheel, Angela can calculate the frictional torque accurately.

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Coordinate , A - the height of the stone when it hits the water. A slingshot sends a stone vertically upward from a height of 20 feet above a pool of water.

The coordinate A represents the height of the stone when it hits the water. When the stone hits the water, its height above the water surface is zero.

So, we can set the expression for the stone's height equal to zero and solve for t to find the time when the stone hits the water. The height of the stone when it is launched is given as 20 feet, which is a fixed value in this problem.

The time when the stone is launched is also a fixed value, which is zero. The maximum height of the stone is the highest point the stone reaches above its initial height of 20 feet. The time when the stone reaches its maximum height is the time at which the vertical velocity of the stone becomes zero.

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Answer:

K = (11*m*(ω*r)^2)/2

Explanation:

Not surprisingly, the formulas K = (1/2)*I*ω^2 and K = (1/2)*m*v^2 give the same result. They should, of course, since the rotational kinetic energy of a system of particles is simply the sum of the kinetic energies of the individual particles making up the system.

The mass of each sphere with the appropriate units are the  0.6 kg by the two tiny identical spheres attract each other with a force of 2.0 nn when they are 29 cm apart.

Let's consider the following scenario: Two tiny identical spheres attract each other with a force of 2.0 nn when they are 29 cm apart. The mass of each sphere is what we need to calculate. The formula for calculating the mass of each sphere. F = Gm1m2 / r²Where:F = Force. G = Gravitational constantm1 and m2 = the masses of the object sr = the distance between the objects.

Substitute the given values: Force (F) = 2.0 nn. Distance (r) = 29 cm = 0.29 m. Gravitational constant (G) = 6.67 × 10-11 N.m²/kg²Find the mass of each sphere.m1 = m2 = m. Multiply the entire equation by ][tex]r² / G:m² = F × r² / G = (2.0 nn) × (0.29 m)² / 6.67 × 10-11 N.m²/kg²= 0.6 kg.[/tex]

Therefore, each sphere's mass is 0.6 kg.

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