A student flips a coin into the air, its initial velocity is 8.0 m/s. Taking g=10m/square seconds and ignoring air resistance, calculate (a) the maximum height, h,the coin reachs. (b)the velocity if the coin on returning to his hand. (c) the time that the coin is in the air (answer step by step showing all working required​)

The least penetrating form of radiation is

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?