You push a lawnmower handle at an angle of 45.0° below the horizontal with 45.0 Newtons of force. The lawnmower has a mass of 15.0 kg. What is the mower’s acceleration?  
A. 

4.24 m/s2

B. 

2.12 m/s2

C. 

135 m/s2

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the