Head gear is required for many sports and can be the most important piece of safety equipment you can have. Question 2 options: True False

A spring in action would be A.) elastic potential energy B.) gravitational potential energy C.) kinetic energy

A cylindrical piece of aluminium is 6.00 cm tall and 2.00 cm in radius. How much does it weight

The Milky Way Galaxy is moving at about 600 km/s relative to the cosmic microwave background. How does this compare to Earth's speed in its orbit and

Consider a system of an 85.0 kg man, his 14.5-kg dog, and the earth. The gravitational potential energy of the system increases by 1.85 103 J when the man climbs a spiral staircase from the first to the second floor of an apartment building.

A population's distribution can be even, clumped, or random. t f

A rock with mass m = 3.60 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 15.

Two electrons are 2.3nm apart. What is the force between two electrons?

3. In a demonstration learning activity, A. the teacher shows children how something works or how to complete an entire activity. B. each child shows and tells about a favorite toy. C.

A 0.12 kg paper airplane flies in a straight line at a speed of 1.3 m/s. How much kinetic energy does the airplane have?

Each atom is composed of electrons and positive material. The mass of the atom is evenly spread throughout the atom. Neutrons are located in the center of the atom. Positive charge occupies a very small volume in the atom.