After an initial push, a sled begins to move downhill at 1 m/s. A few seconds later its kinetic energy has increased. The sled now has 64 times more kinetic energy than it did right after the push. How fast it it going?

Which is a "big idea" for space and time?

Which of these is most directly related to the mass of an object? Weight Acceleration Volume Inertia

Calculate the annual potential energy contained in the water that is held back by the dam. Assume an average height of the water, h of 100.0 m. Express the answer in GJ (at least three significant figures).

A 12.5 kg box sliding on a frictionless flat surface tuns into a fixed spring which compresses at a distance x = 14.1 cm. the spring constant is 94.5 kN/m Find the initial speed of the box

Cylinder and a hoop have the same mass and radius. They are released at the same time and roll down a ramp without slipping. 1) Which one reaches the bottom first? Cylinder Hoop Both reach the bottom at the same time

An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the tension in the cable and the gravity. Which one of the following statements is correct? Group of answer choices A.

If the acceleration of a moving object is zero, which of the following best describes its motion

Calculate mass During a softball game a softball is struck by a bat and has an acceleration of 1,500 kg. If the net force force exerted on the softball by the bat is 300 N, what is the softballs mass.

Find the momentum of a 25 kg remote controlled car moving 4.0 m/s (Type your answer below, don't forget your significant figures and units!)

When a wave slows down it ... a. bends away from the normal b. bends towards the normal c. continues in a straight line