A 55.0-kg skydiver free falls for a period of time before opening his parachute. What is his kinetic energy when he reaches a velocity of 16.0 meters/second?

7,040 J

440 J

539 J

cannot be determined without knowing his height above the ground

What are the 3 most important characteristics of each celestial object?

Which best explains why the diagram shows refraction but not reflection? A. It shows an incident ray. B. It shows that the ray is changing direction. C. It shows the ray passing through the boundary. D.

Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. The objects collide, stick together, and move with speed 0.100 in the direction of the velocity of the first mass before the collision.

715 J of heat are transferred from a 1.30 kg aluminum block to a 0.800 kg iron block. Find the temperature change for the iron.

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

When the mover pushes the box, two equal forces result. Explain why the box moves

What equation expresses the the work-energy theorem?

What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?

What is the z coordinate for the above vector? A vector is r⇀ = 356 m @ θ = 115∘, φ=-30.0∘. 178 m -178 m 120 m 308 m

In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. once the room gets spinning fast enough, the floor drops from the bottom of the room!