In a lab investigation, one group of students (group A) measures the speed of a 0.1 kg toy car to be 2.5 m/s at the bottom of a ramp. Another group of students (group B) measures the speed of the car to be 3 m/s at the bottom of the ramp. The car’s starting position at the top of the ramp is 1 m high. Calculate the kinetic energy of the car for group A

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

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.

)consider two positively charged particles, one of charge q0 (particle 0) fixed at the origin, and another of charge q1 (particle 1) fixed on the y-axis at (0,d1,0). what is the net force f⃗ on particle 0 due to particle 1?