Select the correct answer.
A washing machine uses 1.8 5 10 watts of power. If it is in use for 2 hours per day (on average), how many kilowatt hours will it use in 30
days?
A.
1.1 x 104 kilowatt hours
B.
36 kilowatt hours
C. 18 kilowatt hours
D. 540 kilowatt hours
E.
1.1 x 106 kilowatt hours

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.