Rank Each of the three identical hockey pucks shown in Figure 5.19 is acted on by a 3-N force. Puck A moves
with a speed of 7 m/s in a direction opposite to the
force puck B is instantaneously at rest; puck C moves
with a speed of 7 m/sat right angles to the force. Rank
the three pucks in order of the magnitude of their
acceleration, starting with the smallest. Indicate ties
where appropriate

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?