An archer fires an arrow directly upwards, then quickly runs from the launching spot to avoid being struck by the returning arrow. if the arrows initial velocity is 62.5 m/a upward, how long does the archer have to run away before the arrow lands?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Heterogeneous mixture with larger particles that never settle is