Answer:
The speed of ping pong ball is 160.35 m/s
Explanation:
Given that,
Mass of the bowling ball, ![m_1=7\ kg](https://tex.z-dn.net/?f=m_1%3D7%5C%20kg)
Speed of mass 1, ![v_1=3\ m/s](https://tex.z-dn.net/?f=v_1%3D3%5C%20m%2Fs)
Mass of ping pong ball, ![m_2=2.45\ g=2.45\times 10^{-3}\ kg](https://tex.z-dn.net/?f=m_2%3D2.45%5C%20g%3D2.45%5Ctimes%2010%5E%7B-3%7D%5C%20kg)
The kinetic energy of a body is given by:
![K=\dfrac{1}{2}mv^2](https://tex.z-dn.net/?f=K%3D%5Cdfrac%7B1%7D%7B2%7Dmv%5E2)
According to given condition, the two balls have the same kinetic energy
![K_1=K_2](https://tex.z-dn.net/?f=K_1%3DK_2)
![\dfrac{1}{2}m_1v_1^2=\dfrac{1}{2}m_2v_2^2](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7Dm_1v_1%5E2%3D%5Cdfrac%7B1%7D%7B2%7Dm_2v_2%5E2)
![m_1v_1^2=m_2v_2^2](https://tex.z-dn.net/?f=m_1v_1%5E2%3Dm_2v_2%5E2)
is the speed of ping pong ball
![v_2=\sqrt{\dfrac{m_1v_1^2}{m_2}}](https://tex.z-dn.net/?f=v_2%3D%5Csqrt%7B%5Cdfrac%7Bm_1v_1%5E2%7D%7Bm_2%7D%7D)
![v_2=\sqrt{\dfrac{7\times (3)^2}{2.45\times 10^{-3}}}](https://tex.z-dn.net/?f=v_2%3D%5Csqrt%7B%5Cdfrac%7B7%5Ctimes%20%283%29%5E2%7D%7B2.45%5Ctimes%2010%5E%7B-3%7D%7D%7D)
![v_2=160.35\ m/s](https://tex.z-dn.net/?f=v_2%3D160.35%5C%20m%2Fs)
So, the speed of ping pong ball is 160.35 m/s. Hence, this is the required solution.
place an flashlight in an plastic tube and then color it
Answer:
The high pressure areas in a longitudinal wave are called compressions.
Answer:
350
Explanation:
Since it travels 350 meters per second, the jet will travel 350 meters in one second.