Answer:
Explanation:
It is given that,
Mass of the train car,
Initial speed of the train car,
Initial speed of the second car,
After the collision, both cars stick together and move off with a speed of 4.00 m/s, V = 4 m/s
Let is the mass of the second car. It can be calculated using the conservation of momentum. In case of inelastic collision, after collision both objects move with a common speed.
So, the mass of the second car is 33833.33 kg. Hence, this is the required solution.
Answer:
the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire. Aug 29 2019
Explanation:
Explanation:
using the first eqn for motion
Explanation:
Given that,
Amplitude, A = 2.5 nm
Wavelength,
The speed of the wave, v = 36 m/s
At time t = 0 the left end of the string has its maximum upward displacement.
(a) Let f is the frequency. So,
(b) Angular frequency of the wave,
(c) The wave number of the wave