A car initially traveling at 15 meters per second north accelerates to 25 meters per second north in 4 seconds. the magnitude of the average acceleration is

A boy throws a ball vertically up and catches it after 3 s. What height did the ball reach?

Which description correctly summarizes how an electric motor causes an axle to turn?

in 1 second, 2.68x10^16 Na ions arrived at the negative electrode and 3.92x10^16 Cl - ions arrive at the positive electrode what is the current passing through the electrodes?

Which two objects have stored energy? 1. a ball rolling on the ground 2. a small rock sitting on top of a big rock 3. a stretched rubber band 4. a stone lying on the ground

is the speed of a radio wave in the air, less than, greater than, or the same, to the speed of a sound wave in the air

A brick is released with no initial speed from the roof of a building and strikes the ground in 2.50 s, encountering no appreciable air drag.

State 3 properties of air Try your best doesn't have to be all of them

Which of the following statements correctly compares the frequency and energy of infrared waves and ultraviolet waves? A Infrared waves have lower frequencies than ultraviolet waves.

An object in the solar system orbits the Sun and has enough mass that its gravity has pulled it into a spherical shape, but it does not have enough gravity to clear its neighborhood of orbiting debris. This object is classified as:

An 8.5 l tire is filled with 0.55 moles of gas at a temperature of 305 k. what is the pressure of the gas in the tire?