[tex]\longrightarrow \sf Indigo [/tex]
Solution:-The color and their corresponding wavelength ranges are given in the table below.
[tex]\begin{gathered}\begin{gathered}\boxed{\begin{array}{c|c} \bf colour & \bf wavelength\\ \\ \frac{\qquad \qquad}{} & \frac{\qquad \qquad}{} \\ \sf red & \sf 650 - 700 \\ \\ \sf orange & \sf 600 - 650 \\ \\ \sf yellow & \sf \: 580 - 600 \\ \\ \sf green & \sf 550 - 580 \\ \\ \sf cyan & \sf 500 -550 \\ \\ \sf \: blue& \sf450 - 500\\ \\ \sf indigo & \sf 425- 450\\ \\ \sf violet & \sf 380 - 425 \end{array}} \\ \end{gathered}\end{gathered}[/tex]
After observing the table, we can predict that wave is most likely appear Indigo.
Note- The wavelengths boundaries between the colours are not very sharp and they form a continuous spectrum.
what is the distance of sun from earth?
Explanation:
Scientists sometimes call our region of space the "Goldilocks Zone" because it appears to be just right for life. As noted earlier, Earth's average distance to the Sun is about 93 million miles (150 million kilometers) from the Sun.
In some amazing situations, people have survived falling large distances when the surface they land on is soft enough. During a traverse of Eiger's infamous Nordvand, mountaineer Carlos Ragone's rock anchor gave way and he plummeted 515 feet to land in snow. Amazingly, he suffered only a few bruises and a wrenched shoulder. Assuming that his impact left a hole in the snow 3.5 ft deep, estimate his average acceleration as he slowed to a stop (that is while he was impacting the snow). Pick a coordinate system where down is positive.
Have you seen my dad?
What moves up and down in an antenna or transmitter to produce a radio wave?
Answer:
Radio waves move up and down in the antenna or transmister
Explanation:
A projectile in flight explodes into several fragments. The total momentum of the fragments immediately after this explosion: ___________
a. is the same as the momentum of the projectile immediately before the explosion
b. has been changed into kinetic energy of the fragments
c. is less than the momentum of the projectile immediately before the explosion
d. is more than the momentum of the projectile immediately before the explosion
e. has been changed into radiant energy
Answer:
answer is a.
Explanation:
Newton's first law: inertia
If you still can't get it, look at the book.
the conservation of momentum:
the total momentum of a system is conserved, provided that there is no external net force acting on the system.
The total momentum of a system is conserved. Therefore, the total initial momentum of a body after collision is equal to the total final momentum. Thus, option a is correct.
What is momentum ?Momentum of an object is the ability of an object to bring the force applied to make a maximum displacement. It is the product of its mass and velocity. Momentum is a vector quantity. It have both magnitude and direction.
The momentum in a collision is conserved. Thus total initial momentum is equal to the final momentum. Let m be the colliding mass and the u and v be the initial and final velocity.
Then, mu = m v after collision.
The initial momentum of the flight will be equal to the total momentum of the fragments immediately after the explosion. This is called conservation of momentum.
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The period of a simple pendulum (T) is the time it takes for the pendulum to make one complete swing (a round trip). g is the acceleration due to gravity. You can do an experiment of measuring the period (T) as a function of string length (l). You linearize the equation so that you can plot your experimental data and and apply a linear trendline. The equation of the trendline has the form y = a x + b, where a is the slope and b is the y-intercept.
Required:
How do you use the slope to determine "little g" ?
Answer:
Please find the answer in the explanation
Explanation:
Given that an experiment of measuring the period (T) as a function of string length (l) is performed. To linearize the equation so that you can plot your experimental data and and apply a linear trendline,
The graph of length L will be plot against square of period T.
Given that the equation of the trendline has the form y = a x + b, where a is the slope which is equal to the acceleration due to gravity and b is the y-intercept.
When length L is plotted against square of period T, a linear graph will be achieved. The S.I unit of the slope will be m/s^2 which is acceleration g.
How was the 6th quark discovered?
Answer:
A team of scientists in Geneva, headed by Professor of Physics Carlo Rubbia, has found evidence of a sixth kind of quark, one of the most sought after discoveries in modern physics. ... Rubbia developed this particular proton collision method and has been working with it since the late 1970s
A car accelerates from rest. It reaches a velocity of 25m/s in 10 seconds. What was the cars acceleration?
Answer:
We are Given:
initial velocity (u) = 0m/s
final velocity (v) = 25 m/s
time (t) = 10 seconds
acceleration (a) = a m/s/s
From the first equation of motion, we know that:
v = u + at
solving for a, we get:
a = (v-u) / t
now, plugging the given values in this equation
a = (25 - 0) / 10
a = 25 / 10
a = 2.5 m/s/s
Therefore, the acceleration of the car is 2.5 m/s/s
A heat engine that propels a ship produces 660 Btu/lbm of work while rejecting 300 Btu/lbm of heat. What is its thermal efficiency
This question involves the concepts of thermal efficiency.
The thermal efficiency of the heat engine is "68.75 %".
Thermal EfficiencyThe thermal efficiency of the heat engine can be given by the following formula:
[tex]\eta=\frac{W}{Q}[/tex]
where,
η = thermal efficiency = ?W = Work output = 660 Btu/lbmQ = Heat Input = W + Rejected Heat = 660 Btu/lbm + 300 Btu/lbm Q = 960 Btu/lbmTherefore,
[tex]\eta=\frac{660\ Btu/lbm}{960\ Btu/lbm}[/tex]
η = 0.6875 = 68.75 %
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Select the correct answer.
Good posture is only important when you are exercising.
A.
True
B.
False
19. Two objects of equal masses collide head-on while moving in the opposite directions and join together. Show that the fractional loss of original KE of the objects is given by the 1 expression.
E=(1/2)+(V1V2/V1²+V2²)
Answer:
Explanation:
mass of each object = m
momentum conservation: mv₁ + mv₂ = 2mv, so v = (v₁ + v₂)/2
Initial KE = mv₁²/2 + mv₂²/2 = m(v₁² + v₂²)/2
final KE = (2m)v²/2 = m(v₁ + v₂)²/4
Change in KE = m(v₁² + v₂²)/2 - m(v₁ + v₂)²/4 = m(v₁ + v₂)²/4
= m(v₁² + v₂² + 2v₁v₂)/4 = (1/2) m(v₁² + v₂²)/2 + mv₁v₂/2
Fraction loss = change in KE / initial KE = 1/2 + v₁v₂/(v₁² + v₂²)
Why do water wet glass ?
Answer:
Forces of attraction between a liquid and a solid surface are called adhesive forces. ... Water wets glass and spreads out on it because the adhesive forces between the liquid and the glass are stronger than the cohesive forces within the water.
A person is sitting at the very back of a canoe of length L, when the front just bumps into the dock. show answer No Attempt 50% Part (a) If the canoeist gets up and walks to the front of the canoe and there is no friction between the boat and the water, how far will they be from the dock
The distance of the canoeist from the dock is equal to length of the canoe, L.
Conservation of linear momentumThe principle of conservation of linear momentum states that the total momentum of an isolated system is always conserved.
v(m₁ + m₂) = m₁v₁ + m₂v₂
where;
v is the velocity of the canoeist and the canoe when they are together
u₁ is the velocity of the canoeu₂ velocity of the canoeistm₁ mass of the canoem₂ mass of the canoeistDistance traveled by the canoeistThe distance traveled by the canoeist from the back of the canoe to the front of the canoe is equal to the length of the canoe.
Thus, the distance of the canoeist from the dock is equal to length of the canoe, L.
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Find the resistance at 100°C of a silver wire 1 mm in diameter and 1000 centimetre long ?
Answer:
Ro=19.350 & R¹⁰⁰=26.703
Explanation:
What is the net force acting on a car cruising at a constant velocity of 70 km/h (a) on a level road, (b) on an uphill road?
The net force on the car for either case will be zero, since the car is moving at a constant velocity.
Net force on the car
The net force on the car is the sum of all the forces acting on the car.
∑F = ma
When the car is on a level roadWhen the car is on a level road, the only two forces acting on the car is the applied force and frictional force of the road.
F - Ff = 0
The net force will be zero, since the car is moving at a constant velocity.
When the car is on uphillThe forces acting on the car at the uphill is the applied force, weight of the car acting downwards and the frictional force acting opposite direction.
F - Wsinθ - μFₙcosθ = 0
The net force will be zero, since the car is moving at a constant velocity.
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A student in the Biomechanics class has decided that she would like to make her arms
stronger. She has a mass of 63 kg, She chooses to complete some elbow flexion exercises
using a kettlebell. For this problem, consider the hand and forearm to be a single segment.
The distance from her elbow to her wrist is 22.86 cm.
The force from the kettlebell is applied to her hand, which is 30.48 cm from her elbow joint.
She knows that the moment arm of the elbow extensor muscles about the elbow axis is
The resistive force from load of the kettle lifted by the arm is determined from principle of moment and the magnitude is 71 kg.
Moment of force about a pointThe moment of force about a point is the product of applied force and the perpendicular distance of the force action. The moment of force about a point is equal to the torque exerted by the force.
τ = Fr
where;
F is the resistance force of the kettler is perpendicular distanceF₁r₁ = F₂r₂
925(22.86) = F₂(30.38)
696 N = F₂
in kg, m = 696/9.8 = 71 kg
Thus, the resistive force from the applied force and distance is 71 kg.
The complete question is below:
If she wants the elbow flexors to exert 925 N of force during an isometric contraction, what should the resistance force be at 90 deg of flexion (the upper arm is vertical and the forearm is parallel to the ground) in kg
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Consider a 35-L evacuated rigid bottle that is surrounded by the atmosphere at 100 kPa and 22 ℃. A valve at the neck of the bottle is now opened and the atmospheric air is allowed to flow into the bottle. The air trapped in the bottle eventually reaches thermal equilibrium with the atmosphere as a result of heat transfer through the wall of the bottle. The valve remains open during the process so that the trapped air also reaches mechanical equilibrium with the atmosphere. Determine the net heat transfer through the wall of the bottle during this filling process. -pinterest\.\*
Answer:
3.5 KJ
Explanation:
Energy balance equation is given as;
E_in - E_out = ΔE_system
Thus;
Q_in = (m_2•u_2) - (m_i•h_i)
Now, m_i = m_2
Tbus;
Q_in = (m_2•u_2) - (m_2•h_i)
Q_in = m_2(u_2 - h_i)
Now mass of the air in the bottle is given as;
m_2 = (P_2•V)/(R•T2)
From table A-1 attached, R = 0.287 KJ/Kg.k
We are given;
P_2 = 100 kPa
V = 35 L = 0.035 m³
T2 = 22°C = 22 + 273 K = 295 K
Thus;
m_2 = (100 × 0.035)/(0.287 × 295)
m_2 = 0.04134 kg
Now, from table A-17 attached, at Temperature of 295 K, we have;
Internal energy; u2 = 210.49 KJ/Kg
Enthalpy; h_i = 295.17 KJ/Kg
From earlier, we saw that;
Q_in = m_2(u_2 - h_i)
Thus;
Q_in = 0.04134(210.49 - 295.17)
Q_in = -3.5 KJ
Thus, Q_out = 3.5 KJ
So, the net heat transfer = 3.5 KJ
As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by the tail fin and the downward force due to gravity. A record Chinook salmon has a length of 1.50 m and a mass of 46.0 kg. If this fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 5.80 m/s after two-thirds of its length has left the surface, assume constant acceleration and determine the following.
a. The salmon's acceleration
b. The magnitude of the force F during this interval N
Answer:
a
[tex]a = 12.32 \ m/s^2[/tex]
b
[tex]F = 1017.52 \ N[/tex]
Explanation:
From the question we are told that
The length of the Chinook salmon is [tex]l = 1.50 \ m[/tex]
The mass of the Chinook salmon is [tex]m = 46.0 \ kg[/tex]
The upward velocity in water is [tex]u = 3.00 \ m/s[/tex]
The upward velocity in air is [tex]v = 5.80 \ m/s[/tex]
Generally from kinematic equations
[tex]v^2 = u^2 + 2as[/tex]
=> [tex] 5.80^2 = 3.00^2 + 2 * a * [ [\frac{2}{3} * l ][/tex]
=> [tex] 5.80^2 = 3.00^2 + 2 * a * [ [\frac{2}{3} * 1.5 ][/tex]
=> [tex] 5.80^2 = 3.00^2 + 2 * a * [1 ][/tex]
=> [tex]a = 12.32 \ m/s^2[/tex]
Generally magnitude of the force F during this interval in N is mathematically represented as
[tex]F = m (a + g )[/tex]
=> [tex]F = 46.0 (12.32 + 9.8 )[/tex]
=> [tex]F = 1017.52 \ N[/tex]
An object increases its velocity from 20 m/s to 63 m/s in 10 s. What is the acceleration of the object?
Answer:
An object increases its velocity from 20 m/s to 63 m/s in 10 s. What is the acceleration of the object?
Explanation:
10. The speed of a transverse wave is 15 m/s. The frequency of the wave is 2.5 Hz.
What is the wavelength? *
Answer:
Wavelength = 6m
Explanation:
Given that,
→ Transverse wave = 15 m/s
→ Frequency = 2.5 Hz
Then the required wavelength is,
→ Transverse wave ÷ Frequency
→ 15 ÷ 2.5
→ 15/2.5 = 6m
Hence, the wavelength is 6m.
What are the functions of stems? (Select all that apply.)
Stems absorb water from the soil.
Stems transport water and minerals.
Stems produce additional plants.
Stems help turn the leaves toward sunlight.
Explanation:
A. Stems absorb water from the soil.
B. Stems transport water and minerals.
Hope this helps you
have a good day.
Answer : Stems produce water and soil
And Stems help turn the leaves towards sunlight.
Explanation:
Because of this picture, (if its not obvious), the 2 ones that i got wrong, are not the answer, and the 2 in the middle are is the answer.
A certain spring stretches 15 cm when a load of 50.0 N is suspended from it. How much will the spring stretch if 78N is suspended from it
Answer:
23.4 cm
Explanation:
15 : 50 = x : 78
15*78 = 50x
x = 15*78/50 = 23.4 cm
The spring stretch is, 23.4 cm.
What is the stretch of the spring?Potential energy that is stored as a result of the deformation of an elastic item, such as the stretching of a spring, is known as elastic potential energy. It is equivalent to the work required to stretch the spring, which depends on both the length of the stretch and the spring constant, k.What happens to a spring when you stretch it?A spring exerts a force F = -kx in the direction of its equilibrium position when it is stretched or compressed to a length that differs by an amount x from its equilibrium length. A spring's force acts to return the spring to its equilibrium length; it is a restoring force.What causes a spring to stretch?A typical spring is a tightly wrapped metal coil or spiral that stretches when pulled (by applying force) and returns to its original shape when released (remove the force). A spring is elastic, in other words.
According to the question:
15 : 50 = x : 78.
15×78 = 50x.
x = 15×78/50.
= 23.4 cm.
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anaerobic transmission is when you touch a contaminated surface true or false
Anaerobic transmission is when you touch a contaminated surface is a false statement.
What is anaerobic respiration?Anaerobic organisms are the living things that can survive and grow where there is no oxygen in the surrounding environment so we can conclude that Anaerobic transmission is when you touch a contaminated surface is a false statement.
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Determine the equivalent capacitance of the combination shown when C = 12 n
Hi there!
Recall the following.
Capacitors in series:
[tex]C_T = \frac{1}{C_1} + \frac{1}{C_2} +...+ \frac{1}{C_n}[/tex]
Capacitors in parallel:
[tex]C_T = C_1 + C_2 + ... + C_n[/tex]
Begin by solving for the resulting capacitance of both paths.
Path on the left:
[tex]\frac{1}{C_T} = \frac{1}{2C} + \frac{1}{C} = \frac{3}{2C}\\C_T = \frac{2C}{3}[/tex]
Path on the right:
[tex]\frac{1}{C_T} = \frac{1}{C} + \frac{1}{3C} = \frac{4}{3C}\\\\C_T = \frac{3C}{4}[/tex]
Now, since we ADD capacitors in parallel, we can add the resulting capacitances together:
[tex]C_T = \frac{2C}{3} + \frac{3C}{4}[/tex]
Substitute in 12 F for C and solve.
[tex]C_T = \frac{2(12)}{3} + \frac{3(12)}{4} = \frac{24}{3} + \frac{36}{4} = 8 + 9 = \boxed{17F}[/tex]
List the even numbers between 3 and 13 in set
notation
Answer:
{2,4,6,8,10,12}
Explanation:
Even Numbers
Any number that can be exactly divided by 2 is called an even number.
The even numbers between 3 and 13, written in set notation, are:
{2,4,6,8,10,12}
Answer:
4, 6, 8 , 10, 12
Explanation:
List the even numbers between 3 and 13 in set
notation
[4, 6, 8 , 10, 12]
thanks
Danielle took an iron nail and wrapped thin copper wire around it, then connected the ends of the copper wire to a battery. Which two forces can Danielle's device produce?
A. electrical force and frictional force
B. electrical force and magnetic force
C. frictional force and gravitational force
D. magnetic force and gravitational force
Answer:
It's B (electrical force and magnetic force) I just took the test.
The two forces can Danielle's device produce will be an electrical force and magnetic force. Daniel forms a coil resulting in both forces.
What is electric force?Electric Force on the particle is defined as the application of the force field of one particle on another particle. It is a type of virtual force. it is the ratio of voltage to the distance between them.
Danielle took an iron nail and wrapped thin copper wire around it, then connected the ends of the copper wire to a battery.
A coil of wire that carries an electric current is a solenoid. A solenoid is an electromagnet formed by a helical coil of wire. Which generates a magnetic field when an electric current is passed through the coil.
A solenoid is a form of coil that produces a magnetic field when the electric current is passed through it. A solenoid is created when a conductive wire is used to make a loop.
The two forces can Danielle's device produce will be an electrical force and magnetic force. Daniel forms a coil resulting in both forces.
Hence option B is correct.
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What is the force with which a body
is attracted by the earth towards its centre?
| वह कौन सा बल है जिसके कारण कोई भी
व्तुपर्थृवी के केंद्र की ओर आक र्तष होती है?
A : Mass | द्रव्यमान
B : Weight | भार
C : Volume | आयतन
D : Density | घनत्व
Ans:
B : Weight | भार
Answer:
Explanation:
Gravity
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.
A passenger plane is travelling down the runway with a speed of 20\,\dfrac{\text{km}}{\text{h}}20 h km 20, start fraction, start text, k, m, end text, divided by, start text, h, end text, end fraction, then speeds up with constant acceleration over 2.4\,\text{km}2.4km2, point, 4, start text, k, m, end text over 59\,\text{s}59s59, start text, s, end text. We want to find the final velocity of the plane at the moment of take-off. Which kinematic formula would be most useful to solve for the target unknown?
Given that,
Initial speed, u = 20 km/s
Acceleration of plane, a = 2.4 km/h²
Time, t = 59 s
We need to find the expression to find the final velocity of an object.Let the final velocity is v.
Using the second equation of kinematics:
[tex]\Delta s=ut+\dfrac{1}{2}at^2[/tex]
a is acceleration, [tex]a=\dfrac{v-u}{t}[/tex]
So,
[tex]\Delta s=ut+\dfrac{1}{2}\times \dfrac{v-u}{t}\times t^2\\\\\Delta s=ut+\dfrac{1}{2}(v-u)t\\\\\Delta s=\dfrac{2ut+vt-ut}{2}\\\\\Delta s=\dfrac{vt+ut}{2}\\\\\Delta s=(\dfrac{v-u}{2})t[/tex]
We can use the above formula to find the final velocity (v) of the plane.
______________ is the length of the space between two points.
A.
Time
B.
Velocity
C.
Speed
D.
Distance
Answer:
Distance
Explanation:
When using the length of the space between two points, the distance measures the length
Answer:
D.Distance
Explanation:
What are the Economic importance of rusting of iron
Answer:
Rusting is the corrosion of iron which is the most widely used structural metal.
why should you have a good attitude School. 3 pages
Answer:
positive attitude lets you relax, remember, focus and absorb information as you learn. You're ready to welcome new experiences and recognize many different kinds of learning opportunities. And when you can see opportunities, hope increases.