A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration?

Jenny, an average teenager, writes in her diary: "No one understands how hard my life is and how confused I get. Why is this happening to me? Why am I so different?" A developmental psychologist would probably say that Jenny is expressing A.

There are two types of addiction, psychological and physical. A. True B. False

Suppose the angle of reflection measures 40 degrees. What is the angle of incidence? A. 40 degrees B. 50 degrees

Is melting butter in the sun a chemical or physical change?

How does noise affect signals? what happens if the level of noise becomes too high relative to the strength of the signal.

A father racing his son has 1/3 the kinetic energy of the son, who has 1/2 the mass of the father. The father speeds up by 1.4 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son

A 2 kg book is pushed across a table is a force 4. Assuming no friction, what is the acceleration of the book?

When electricians use wiring for houses they use both copper and rubber. Which do you think is used as a conductor?

Suppose that 600 W of radiation in a microwave oven is absorbed by 250 g of water in a very lightweight cup. Approximately how long will it take to heat the water from 20 C to 80 C? (A) 50 s (B) 100 s (C) 150 s (D) 200 s

Calculate the velocity of a 1650kg satellite that is in a circular orbit of 4.2 x 10^6m above the surface of a planet which has a radius 3.95 x 10^5 m and the period of the orbit is 2.0 hours.