a car accelerates from rest to a velocity of 5meters/second in 4 seconds. what is its average acceleration over this period of time?

In each cycle, a heat engine performs 710 J of work and exhausts 1480 J of heat. What is the thermal effiency?

What is Kinetic Molecular Theory? Explain.

Two plastic balls with opposite charges are hung by a string close to each other. How will they interact with each other? They will attract each other. They will repel each other. They will not interact. They will move in circles.

Which equations represent the relationship between wavelength and frequency for a sound wave? check all that apply

If an object moves with constant (non-zero) acceleration, then which, if any, of the following statements about its motion is/are true? The position may be increasing or decreasing. A: True B: False The acceleration may be increasing or decreasing.

What is the charge of alpha, beta and gamma rays?

A pair of scissors is a complex machine. what simple machines make up a pair of scissors?

Methane gas absorbs red light, and methane clouds reflect blue light, giving Uranus and Neptune their distinctive blue colors. Why do Uranus and Neptune have methane clouds, but Jupiter and Saturn do not

A car traveled 1025 kilometers from El Paso to Dallas in 13.5 hours. What was it's average velocity?

A flat loop of wire consisting of a single turn of cross-sectional area 7.10 cm2 is perpendicular to a magnetic field that increases uniformly in magnitude from 0.500 t to 2.00 t in 0.93 s.