please solve no.g
Anyone!???​

Answer: Option C.

Explanation:

As the speed of plane increases and it moves forward it allows to push air on the bottom of the wings of the plane which results in increasing the pressure

The fact of air pressure on top of planes wing decreases with the increase bin plane's speed is based on Bernoulli’s Principle which states that with the fast moving air, the pressure decreases.

Therefore,n when the plane moves up it's wing pushes air down and on the same time the air pressure decreases at the top of the wing, this difference between the high and low pressure allows the flight to lift up.

Hence, the correct option is C.

Allport believed that personality of human is categorized into three traits:Cardinal, Central and secondary. Among these traits, there exists a dominant force that defines your personality and influence your behavior, feelings and thoughts. This is called Cardinal Traits.

Gordon AllportGordon Allport (November 11, 1897  – October 9, 1967) was a psychologist. He earned his doctorate in psychology from Harvard in 1922. He spent his career developing theories, studying social issues, such as prejudice, suspicion, communal, and developing personality tests.

According to Allport, one of the things that most motivates humans is the tendency to fulfill their biological needs. This tendency is called by Allport with opportunistic functioning. Opportunistic functioning is reactive, past oriented, and biological.

Nevertheless, Allport considers this opportunistic functioning is not very important in understanding human behavior, in fact most human behavior is motivated by something else, something that functions in the framework of self-expression, which Allport calls ''Propriate functioning''.

The point is that whatever a person does in life is usually for the sake of showing who he is. This self-function is proactive, future-oriented, and psychological. The word propriate comes from the word proprium which means self-concept. Allport's intention by putting more pressure on the proprium is to define the concept of self as carefully as possible.

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The net force acting on the book is 7N right.

The net force is defined as the total of all forces exerted on an object. Net force is essential since it aids in describing the motion of an item and can be used to calculate acceleration. The first law of motion of Isaac Newton states that an object in motion will remain in motion and an object at rest will remain at rest unless acted upon by a net force that is imbalanced. This indicates that knowing the net force acting on an object will aid in predicting its velocity.

In this case, we are given that:

Force F1 = 10 N pulling to the right

Force F2 = 3 N pulling to the left

Let's assume the right is positive and the left is negative.

To calculate the net force, we can use this following formula:

Fnet = F1 + F2

Fnet = 10 + (-3)

Fnet = 7

As the result, the net force would be 7 N.

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Answer:

  focal length = 30 cm

Explanation:

You want the focal length of a convex mirror when moving the mirror an additional 15 cm away from the object causes its image size to decrease from 1/2 to 2/5 the size of the object.

The relation between focal length (f), object distance (do) and image distance (di) is ...

  1/f = 1/do +1/di

The ratio of heights is the same as the ratio of distances:

  hi/ho =di/do

If we let do represent the original object distance, then (1/2)do = di, the original image distance. This gives one equation we need:

  1/f = 1/do +1/(1/2do) = 3/do

Moving the mirror increases the object distance to (do+15). Now, the equation becomes ...

  1/f = 1/(do+15) +1/(2/5(do+15)) = 7/(2(do+15))

Substituting for 1/f, we have ...

  3/do = 7/(2(do +15))

  6(do +15) = 7do . . . . . . . . . cross multiply

  90 = do . . . . . . . . . . . . subtract 6·do

Then the focal length is ...

  1/f = 3/do

  f = do/3 = 90/3 = 30

The focal length of the mirror is 30 cm.

Answer:

False

Explanation:

False ... a mechanical wave needs a medium of particles to propagate....a vacuum has no particles

The person will do 8222.3 Joules of work on the sled if she drags it.

Work is a physics term used to describe the energy transfer that takes place when an object is moved over a distance by an external force, at least some of that is applied in the direction of the displacement.

Given, angle made by the rope θ = 20°

displacement, s = 125m

force, F = 70N

Positive work is done by the force's displacement-direction component.

W = Fcosθ.s

W = 70N(cos20°)125m.

W = 8222.3 Joules

Since it is perpendicular to the distance, the force's vertical component does NOTHING. In other words, it is ineffective at moving the sled. Since it is the horizontal component of the force that moves the object, it is effective.

The person will do 8222.3 Joules of work on the sled if she drags it.

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According to the given statement 10W power did you deliver.

Power is the rate at which energy is transferred, transformed, or converted. It is a measure of the amount of work that can be done in a given amount of time. In physics, power is the product of the time rate of change of energy, or the rate of doing work. Power is measured in watts or joules per second (J/s). It is an important concept in many fields, such as mechanics, thermodynamics, electromagnetism, and nuclear physics. It is also used to measure the capacity of machines, devices, and systems to perform work.

Force=10N

Distance =10m

Time=10s

Power =?

But Power= Work done/Time taken

P= W/s

W= F x d=10x10=100

P=100/10

P=10W

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A yellow lamp emits light with a wavelength of 6.00 ·. 3.01 x 10 19 photons such photons are required to produce 10.0 joules worth of photons.

The quanta that make up light are called photons, and in the absence of any other interactions that would cause their characteristics to change, they remain ethereally stable with no indication that they would transform into any other particle.

In addition to releasing energy and generating heat, chemical activities within your body also release small quantities of photons, which are fundamental light particles. The bottom portion of your face and late afternoon are when the glow is most prominent.

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Answer:

Hyperbola

Explanation:

Hyperbola: When the plane intersects the double napped cone such that the angle between the vertex and the angle is less than the vertex angle, the resulting conic section in the form of an open curve is called a hyperbola.

The distance moved by an object when it acted by a net force 1 N and time 3s is found to be 0.9m

According to this, an object's rate of change in velocity is directly proportional to the force used and moves in the direction of the applied force. The equation: summarises it. Mass (kg) times acceleration (m/s2) equals force (N). A constant mass item will therefore accelerate in direct proportion to the force exerted.

F = ma

acceleration = F/m => 1/5

v= u + at, u=0 (initially at rest);

v=at = distance/t = at;

S = distance => ut + 1/2at^2

=> 0 + 1/2 x 1/5 x 9 => 0.9m

the distance traveled by object in the given time 3s = acceleration x t2

The acceleration is determined by dividing the net force by the mass. An object's acceleration doubles if the net force exerted on it also doubles. Increased mass will result in a halving of acceleration. If the mass and net force are both doubled, the acceleration will remain constant.

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A net force of 1.0 N acts on a 5.0-kg object, initially at rest, for 3.0 seconds. What is the distance the object moves during that time?

The motion of an object moving with uniform circular motion is always tangent to the circle, so the speed of an object moving in a circle is known as the tangential speed..

Uniform circular motion is the motion of an object in a circular path with a constant speed and the direction of velocity is perpendicular to the direction of acceleration. Examples of objects that experience uniform circular motion are wheels and clockwise motion where these objects have a constant linear speed, constant angular velocity, and constant centripetal acceleration. The speed in the circular motion of the object is also called the tangential speed where the object is moving in a circle in the direction of offending its spin path.

Centripetal acceleration is the acceleration directed towards the center of the circle. this centripetal acceleration that makes the wheel and clockwork move in a circle because they are accelerating towards the center of the circle.

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The force that exists between the charges is calculated as 1.296 * 10^-18 N.

It is the force of attraction between two opposing charges, protons and electrons.

The electric force between charged bodies at rest is called electrostatic force or Coulomb force. Although the law was known earlier, but it was first published in 1785 by French physicist Charles-Augustin de Coulomb. It is the force of attraction between two opposing charges, protons and electrons.

Given, q1 = q2 = 6 *10^-6

and r = 0.5m

F= 1/4πc * q1 q2/r²

As 1/4πc = 9* 10^-9

= (9* 10^-9 * 6*10^-6*6*10^-6)/0.5²

= 1.296 * 10^-18 J

The force that exists between the charges is 1.296 * 10^-18 N.

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Answer:

9 hours

Explanation:

When the 2nd car catches up to the first, both cars will have gone the same distance.  

Distance = rate x time

Distance car 1 traveled when car 2 catches up = 90 mph(3 hr + t)

Distance car 2 traveled when it catches up to car 1 = 120t

90(3 + t) = 120t

270 + 90t = 120t

30t = 270

t = 270/30 = 9 hrs

Therefore, 12 hours after car 1 leaves the city and 9 hours after car 2 leaves the same city, they meet up.  

To prove it:

90(12) = 120(9) = 1080    Car 2 catches up to Car 1 1080 miles from the city

Different types of plate interactions at plate boundaries can cause earthquakes of varying strengths, at various depths, which can be caused by both forces underneath Earth's surface and volcanic eruptions.

Plate interactions refer to the forces and mechanisms that cause the movements and interactions of the Earth’s plates. These interactions are driven by convection currents in the Earth’s mantle, which are generated by the heat energy released by the Earth’s core. The plates move in different directions, resulting in different types of plate interactions. The most common type of plate interaction is called divergent boundaries, which occur when two plates move away from each other.

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Answer: D

Explanation:

The minimum value of the coefficient of static friction is 1.33.

To calculate the minimum value of the coefficient of static friction, we need to determine the force of static friction acting on the block. The force of static friction is equal to the force of gravity acting on the block (mg) multiplied by the coefficient of static friction (µs

m = 14.26kg

θ = 41°

g = 9.8 m/s²

The force of gravity acting on the block is given by the formula:

Fg = mg

where,

m =  (mass of the block)

g =  (acceleration due to gravity)

Fg = 14.26kg *9.8 m/s²

Fg = 139.75 N

The force of static friction can be found using the formula:

Fstatic = µs * N

where,

µs = coefficient of static friction (unknown)

N = Normal force acting on the block

The normal force acting on the block is equal to the force of gravity acting on the block perpendicular to the ramp.

N = mg * cos(θ)

where,

θ = 41 degrees (incline of the ramp)

N = 14.26kg * 9.8 m/s² * cos 41°

N = 105.47 N

So,

Fstatic = µs * (mg * cos(θ))

making µs subject of the formula and substituting already calculated vaues we get,

µs =      Fstatic

          (mg * cos(θ))

µs =    139.75 N

         105.47 N

µs = 1.33

This is the minimum value of the coefficient of static friction.

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An advantage of electromagnets over bar magnets is that you can easily vary the strength of the magnetic field.

An electromagnet is a type of magnet that is created when an electric current passes through a coil of wire. It produces a magnetic field due to the current flowing through the coil. Electromagnets are used in a wide variety of applications, such as motors, generators, speakers, and magnetic separation equipment. Electromagnets have the advantage of being able to be switched on or off, which allows them to be used in a controlled manner. They are also able to be adjusted in strength, which makes them very versatile and powerful. Electromagnets are also used in magnetic resonance imaging (MRI) machines, where they create a magnetic field that is used to take images of the body's internal structures.

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a) The centripetal acceleration of the mass is 526.38 m/s².

b) The tension in the string  is 263.19 N.

Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.

Angular speed of the mass = (5/1.5) revolution per second

= (5 ×2π)/1.5 rad/s

= 20.94 rad/s

a)  the centripetal acceleration of the mass = ω²r

= (20.94)²×1.2 m/s²

= 526.38 m/s².

b)  the tension in the string = mω²r

= 0.50 kg × 526.38 m/s²

= 263.19 N.

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The value of the coefficient of kinetic friction is 0.32.

The value of the coefficient of friction is calculated by applying Newton's second law of motion as shown below.

Ff = ma

where;

μmg cosθ = ma

μg cosθ = a

μ = a / ( g cosθ )

where;

The value of the coefficient of kinetic friction is calculated as;

μ =  ( 2.361 m/s² )  / ( 9.8 m/s² x  cos41 )

μ = 0.32

Thus, the value of the coefficient of kinetic friction between the block and the inclined ramp is a function of the acceleration of the block and the angle of inclination of the ramp.

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Answer: The Rock will be traveling at 5.93 m/s or around 21.4 km/hr or 13.3 mi/hr when it reaches the ground. (you can use go0gle to convert the speeds to something else, if needed)✅

PLEASEE GIVE BRANLIEST!!!

Explanation: ✅

The speed of the rock when it reaches the ground can be calculated using the equation:

v = √(2gh)

where v is the velocity, g is the acceleration due to gravity (approximately 9.8 m/s^2 on Earth), and h is the height from which the rock is dropped.

So, the speed of the rock when it reaches the ground will be approximately:

v = √(2 * 9.8 * 18.16) = √(35.1328) = 5.93 m/s

It will be traveling at 5.93 m/s or around 21.4 km/hr or 13.3 mi/hr when it reaches the ground.

Answer:

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not.

However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

Hope this helps :)

1. 2.1 m/s west.

2. 2.0 m/s west.

3. 1.4 m/s west.

Momentum is a conserved quantity, meaning that it is neither created nor destroyed. This means that the total momentum of the system (cue ball and eight ball) before and after the collision must stay the same. After the collision, the momentum of the system is equal to the momentum of the eight ball alone since the cue ball no longer has momentum after it stops (for option 1) or has a different momentum depending on its speed (for options 2 and 3).

Since momentum is mass times velocity, we can solve for the velocity of the eight ball by rearranging this equation:

Momentum = Mass x Velocity

Velocity = Momentum / Mass

Plugging in the given values:

1. Velocity = (2.1 m/s east) / (mass of both balls) = 2.1 m/s west

2. Velocity = (2.1 m/s east + 0.10 m/s east) / (mass of both balls) = 1.9 m/s west

3. Velocity = (2.1 m/s east + 0.70 m/s east) / (mass of both balls) = 1.4 m/s west

Answer:

Number b and c are true

B. The object's mass would be the same on the Moon.

C. The object's weight would be the same on the Moon.

District-based voting is used to choose representatives in Congress, state legislatures, and many county and municipal positions. In contrast, populations shift. Depending on the district, folks may move in or move out. The demographics of districts may also shift.

Option C is correct Answer.

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Since the object is experiencing free fall, if you ignore air resistance, the time it will take the container to fall 300m to the ground is 7.82 seconds.

Any motion of a body in which gravity is the only force acting on it is referred to as free fall.

The object dropped from the airplane is experiencing free fall.

Ignoring air resistance, the only force acting on the container is the force of gravity which accelerate the container by a constant value.

The time taken for the object to reach the ground is determined using the formula of an object  experiencing free fall as given below:

s = ut + ¹/₂gt²

where

h is the height above the ground = 300 m

u is the initial vertical velocity of the container and is equal to zero since the object starts from rest.

g is the acceleration of gravity = 9.8 m/s²

t is the time = ?

The equation above becomes;

h = ¹/₂gt² since u is zero

Solving the equation for t:

t = √2h/g

t = √2 * 300 / 9.8

t = 7.82 seconds.

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Complete question:

A 415-kg container of food and water is dropped from an airplane at an altitude of 300m. First, consider the situation ignoring air resistance. Then calculate the more realistic situation involving a drag force provided by a parachute.

1. If you ignore air resistance, how long will it take the container to fall 300m to the ground?

The magnitude of the gravitational force acting on the satellite is 3.16 x 10^22 N.

The gravitational force between two objects can be calculated using Newton's Law of Universal Gravitation: F = G * (m1 * m2) / r^2, where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.

To calculate the gravitational force acting on the satellite, we need to know the mass of the satellite (m1) and the distance between the center of Earth (m2) and the center of the satellite (r).

The mass of the satellite is given as 1,500 kg

The distance between the center of Earth and the center of the satellite is the distance from the surface of Earth to the satellite + the radius of Earth:

r = (1 Earth radius + 6.37 x 106 m)

We can use the given information to calculate the force of gravity acting on the satellite:

F = G * (m1 * m2) / r^2

F = (6.67 x 10^-11 N*(m^2)/(kg^2)) * (1,500 kg * 5.97 x 1024 kg) / (6.37 x 106 m + 6.37 x 106 m)^2

F = 3.16 x 10^22 N

The magnitude of the gravitational force acting on the satellite is 3.16 x 10^22 N.

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Answer:

3,700 N

Explanation:

Someone already explained it, but didn't give an answer that can be put into khan academy.

The volume of that gas in the 100 degrees temperature will be 100 cubic feet. The condition of the area is isobar or the same pressure. Hence, you have to formulate the solution based on isobars formula.

As per data given, previous volume (V1) = 20 cubic feet; previous temperature (t1) = 50 degrees; current temperature(t2) = 100 degrees. the condition of the area is in the constant pressure or isobars. The formula we will use in the isobar is V1 : V2 = t1 : t2. So, the calculation would be:

V1 : V2 = t1 : t2

20 : V2 = 20 : 100

20 V2 = 20 x 100

V2 = 100 cubic feet

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Answer: 11 meters

Explanation: i'm rlly sorry if i am wrong

When, During the game, the ball experiences a net force of 0 newtons. It is sitting still is the statement explains what is most likely happening with the ball.

The vector sum of the various or single forces exerted on a particle or object is termed as the net force. The original force's affect on the motion of the particle the force is exerted is replaced by the net force, which is a single force.

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