6. A person lifts a package weighing 75 N. If she lifts it 1.2 m off the floor,

what work has she done?

Imagine a 10 kg block moving with a velocity of 20 m/s to the left. calculate the kinetic energy of this block

How many electrons are in the third energy level of a calcium atom

Melanie completes a long distance run at an average speed of 6 mph. If it takes her 3 hours, how far did she run?

A charge Q generates an electric field of strength E at a distance d away. Determine the electric field strength at d and 2d, respectively:

A projectile is shot from the edge of a cliff 140 m above ground with an initial speed of 120 m/s at an angle of 38 degrees above the horizontal. What is the time taken by the projectile to hit the ground 140 m below the cliff? (g = 9.8 m/s²)

The air over Earth's surfaces absorbs heat from the materials of Earth. In Section 3 of the experiment, the air over the sand the air over the water because sand water.

Describe the rise and fall of a basketball using the concepts of kinetic energy and potential energy

Another word for character in sports is "sportsmanship." - True False

Assume an 8-kg bowling ball moving at 2m/s bounces off a spring at the same speed that it had before bouncing. What is the momentum of the recoil?

A physics book slides off a horizontal tabletop with a speed of 3.90 m/s. It strikes the floor in 0.350 s. Ignore air resistance. Find the height of the tabletop above the floor.