Which best describes the projectile motion of the marble as it leaves the table at the two different speeds? the marble’s horizontal and vertical velocities change. the marble’s horizontal and vertical velocities remain the same. the marble’s vertical velocity changes, but its horizontal velocity does not. the marble’s horizontal velocity changes, but its vertical velocity does not.

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.