Please be more specific because they all transmit signals but the most common one is the radio wave because it transmits cellphone , televition and radio signals
Ground water keept the ground at a stable level when it is gone the cavern it was in has no support and is at risk of callaps
Answer:
M V = m v conservation of momentum (Caps-cannon Small-projectile)
V = m / M * V = 2 / 2000 * 200 m/s = .2 m/s recoil velocity of cannon
KE = 1/2 M V^2 = 2000 / 2 kg * (.2 m/s)^2 = 40 kg m^2/s^2 = 40 J
We have discovered 786 planets. Most of which were only recently discovered.
When going round a corner your direction changes which means your velocity changes which means there is an acceleration.
