What force is needed to give a 4.5 kg bowling ball an acceleration of 9 m/s^2

Billiard ball A, mass 0.17 kg, moving due east with a velocity of 4.0 m/s, strikes stationary billiard ball B, also mass of 0.17 kg. After the collision, ball A moves off at an angle of 30° north of east with a velocity of 3.

Which property of the wave does the value of two per second describe?

Technician A says that the starter motor used to crank diesel engines can draw up to 400 amps of current.

A recent home energy bill indicates that a household used 475475 kWh (kilowatt‑hour) of electrical energy and 135135 therms for gas heating and cooking in a period of 1 month. Given that 1.00 therm is equal to 29.329.

A thin film of cryolite (nc = 1.34) is applied to a camera lens (ng = 1.58). The coating is designed to reflect wavelengths at the blue end of the spectrum and transmit wavelengths in the near infrared.

A change from one form of energy into another is called a. gravitational potential energy. b. work. c. conservation of energy. d. an energy transformation

4. An airplane must achieve a velocity of 71 m/s for takeoff. If the runway is 1000 m long, what must the acceleration be?

As the average kinetic energy of the particles in a gas increases, which of the following occurs?

Power=170 watts time=20 seconds

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