A soccer ball is traveling at a velocity of 50 m/s The kinetic energy of the ball is 500 J What is the mass of the secer bort?

Which sound wave, A or B, has higher intensity?

If every object that has mass has gravity why do I only notice the gravity of Earth

How is a magnetic field generated? a. gravity b. moving electric charges c. charged particles that do not move d. an isolated magnetic pole?

A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from rest and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 34.0° above the horizontal.

If the velocity of a moving object doubles, then what else doubles?

Which of galileo's observations most strongly supported a heliocentric cosmology? the phases of venus?

How can scientists know for sure that the cell theory is true? What evidence do we have to prove it

Two frisky grasshoppers collide in midair at the top of their respective trajectories and grab onto each other, holding tight thereafter. One is a robust 250 g beast initially moving south at 15.

A 50 kg child runs off a dock at 2.0 ms (horizontally) and lands in a waiting rowboat of mass 150 kg. At what speed does the rowboat move away from the dock?

A force of 15 N acts upon a 3 kg block. Calculate the acceleration of the object. Question 2 options: A. 75 m/s^2 B. 5 m/s^2 C. 45 m/s^2 D. 18 m/s^2