On a weekend trip to the beach, your friends put you in charge of pulling the cooler out to your picnic area. you estimate the cooler has a mass of about 15 kg, and the distance from the car to the picnic area is a level 50 m. you hold the handle at 25° above the horizontal, exerting a force of 25-n on the cooler from the handle. how much work does the handle do on the cooler while moving from the car to the picnic area?

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.

Difference between natural and artifical magnet

To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =