A player strikes a hockey puck giving it a velocity of 48.83 m/s. The puck slides across
the ice for 0.198 s after which time its velocity
is 46.83 m/s.
The acceleration of gravity is 9.8 m/s
2
.
If the mass of the puck is 185 g, what is the
average drag force exerted on it by the ice?

What is the coefficient of kinetic friction for
the puck sliding on ice?

If the puck strikes the goalie’s pads and stops
in a distance of 3.57 cm, what average force is
exerted on the pads?
Answer in units of N.

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.