The horse is galloping at 13 m/s. Five seconds later, after climbing the hill, the horse is moving at 5.5m/s. Find the accelerarion that describes this change in velocity. PLEASE HELP!! i will mark brainliest:)

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. use the following specific heat capacity data to determine which block will increase its temperature the most.