You input 75 J of work with a wedge. If the wedge does 65 J of useful work, what if the efficiency of the wedge?

Which object will have more inertia a 100kg rock a 5kg book a 60kg person or a 2000kg car

If you were trying to design the most efficient fission reactor possible, what ratio of U-235 to U-238 would you want? Explain why.

Scientists can measure the amounts of different elements found in the universe. Which element's concentration in the universe is evidence for the big bang theory? A. Helium B. Uranium C. Calcium D. Iron

What is the mass of a 196 n block

Space travel has come a long way since Laika, but there are still many celestial bodies waiting to be explored.

In general, what can be said about metals.

If the moon did not have an atmosphere what would happen to it

Density is calculated by: dividing volume by mass dividing mass by volume multiplying mass and volume multiplying mass and gravity

The Burj Khalifa in Dubai is the tallest building in the world at about 828 m. A daredevil climbs to the top of the building and sees the the Boulevard Plaza 2 (141 m tall) about 300 m away.

Suppose the initial position of an object is zero, the starting velocity is 3 m/s and the final velocity was 10 m/s. The object moves with constant acceleration. Which part of a velocity bs.