position in a gravitation field (c)
Answer:
The speed and direction of the apple is 1.448 m/s and 66.65°.
Explanation:
Given that,
Mass of apple = 0.110 kg
Speed = 1.13 m/s
Mass of orange = 0.150 kg
Speed = 1.25 m/s
Suppose we find the final speed and direction of the apple in this case
Using conservation of momentum:
Before:
In x direction,



In y direction = 0
After:
is velocity of the apple in the y direction
is the velocity of the apple in the x direction
Momentum again:
In x direction,



In y-direction,



We need to calculate the speed of apple

Put the value into the formula


We need to calculate the direction of the apple
Using formula of angle

Put the value into the formula


Hence, The speed and direction of the apple is 1.448 m/s and 66.65°.
Answer:Magnitude of potential energy before falling will be equal to the magnitude of the final kinetic energy, energy is only converted from potential to kinetic
Explanation: law of conservation of energy says that energy can neither be created or destroyed but Change from one form to another.so nothing will happen to the size of the potential energy when it changes to kinetic energy
The inner planets are usually rocky because the gravitational pull is stronger closer to the star or in this case the sun. The dust and rocky particles that are left over after a super nova or in a nebula will tend to orbit closer to a proto-star when a solar system is in its early days. In our solar system these planets are Mercury, Venus, Earth and Mars. Gases are less dense and will be less affected by the pull of gravity because rocky particles have more mass. The outer planets are gas giants formed from clouds of gas that would be further out in the spinning disk around a proto-star.
The fundamental frequency of the tube is 0.240 m long, by taking air temperature to be
C is 367.42 Hz.
A standing wave is basically a superposition of two waves propagating opposite to each other having equal amplitude. This is the propagation in a tube.
The fundamental frequency in the tube is given by

where, 
Since, T=37+273 K = 310 K
v = 331 m/s

Using this, we get:

Hence, the fundamental frequency is 367.42 Hz.
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