what is the force on a persons hand, which is using a rope to accelerate a 5 kg block upward with an acceleration of 2.2 m/s^2

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

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?

Aweather balloon has a volume of 52.5 liters at a temperature of 252 k. the balloon is released and rises to an altitude where the temperature is 295 k. how does this temperature change affect the gas particle motion?