Which of the following simple machines includes a wedge?

a. axe

b. file

c. bolt

d. ramp

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?