Observe the following actions, and then answer the following questions a) Two persons are pushing a box in the same direction with too of a force what will happen to the box? b) If two people compete to pull a bag toward each other, each exerts 100N force on his side, describe the motion of the bag?

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?