A child accelerates at2.0kg toy from rest to 4.0m/s in 8 seconds. What is the force extorted by the child? A.1N B.0.5N C.4N D.8N

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.

Which statements did both aristotle and ptolemy assume? check all that apply.

In which of the following can you not find plasma