A car moving west slows down from a velocity of 50 m/s to 20 m/s in 15 seconds. What is its acceleration?

The force of repulsion between two like-charged particles will increase if A) the distance between the charged particles is increased. B) the distance between the charged particles is decreased.

A time-varying electric field is always accompanied by a: A) time-varying magnetic field B) static electric field C) charge motion D) static magnetic field

A small rescue helicopter has 4 blades, each 4m long and 50kg in mass, and it carries a load of 1000kg. a) Find the rotational kinetic energy in the blades when rotating at 300 rpm.

Which of the following is the most likely global climate change? a. a decrease in the overall temperature of the Earth b. an increase in the overall temperature of the Earth c. an increase in the number of cold climates d.

How does the Earth's rotation affect our view of stars?

How should science advance?

Which property will tell you how much energy is in a wave A wavelength B amplitude C frequency D speed

What do tire treads, rubber mats, automobile breaks, and tennis shoes have in common. -They reduce friction -they are lubricants -they increase friction -the reduce static electricity

A car has a mass of 975kg. by pushing on the car Evan increase its speed from 0.5 m/s to 3 m/s. what impulse did evan apply to the car

Why do objects of different matter not obtain the same temperature after thermal equilibrium? example copper and aluminum