A car accelerates uniformly in a straight line from rest at the rate of 2.8 m/s^2.

What is the speed of the car after it has
traveled 69 m?
Answer in units of m/s.

The necleus of an atom is made up of what subatomic particles?

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.