A rock tied to the end of a string moves in a circle of radius 1.2m with a constant speed of 3.0 m/s. Calculate the centripetal acceleration of the rock.

A scuba tank, when fully submerged, displaces 14.3L of seawater. The tank itself has a mass of 12.4 kg and, when "full," contains 2.91kg of air.

A car slows down from - 27.7 m/s to - 10.9 m/s while undergoing a displacement of - 105 m. What was its acceleration? (Unit = m/s^2)

You can jump 3 m (10 feet) off of a diving board and into a swimming pool and be uninjured. However, if you jumped from the same height onto concrete it would be very bad. Use the principles of impulse and momentum to explain this.

Albert presses a book against a wall with his hand. As Albert gets tired, he exerts less force, but the book remains in the same spot on the wall Classify each force on the book as increasing, decreasing, or not changing in magnitude when Albert

9. In the sun devil football game, a receiver, who is standing still, has caught a pass from the quarterback. Before he can move, a tackler, running at a velocity of + 6.89 m/s, grabs him.

When you see a straw in a glass of water it looks bent why is this?

Compare the energy and wavelength of a microwave to the energy of a gamma ray.

T/F all compounds are molecules but NOT all molecules are compounds.

particle is projected from the surface of the planet Krypton with a speed equal to 3.6 times the escape speed from that planet's surface.

Does the box contain positive charge, negative charge, or no charge? Does the box contain positive charge, negative charge, or no charge?