5. What is the net force in the following two situations? Situation &
Situation B
norm= 3 N
Fnorm =
= 3N
Ffrict= 5 N
= 5 N
Fapp
Ffrict= 5 N
Fgray= 3 N
Foray= 3 N

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

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.