A 17 kg curling stone is thrown along the ice with an initial speed of 4.0 m/s and comes to rest in 10 s. Calculate the work done by friction. Need to calculate force and distance.

What should the power status of a circuit be when measuring resistance with an ohmmeter?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?