Find the velocity of a turtle who swims 100 meters toward the shore in 25 seconds

Which physical of matter can be expressed numerically in Si units

Equate these two equations for acceleration and express, for constant mass, FΔt.

A 50kg hiker is standing on the edge of a cliff. Find the hiker's gravitational potential energy if the cliff is 30m high. (Show the equation, show your work and answer with units.)

An old clock has a spring that must be wound to make the clock hands move. Which statement describes the energy of the spring and hands of the clock? A) The spring has kinetic energy and the hands have kinetic energy.

Which term refers to the structure that forms the surface of a cell separating its contents from the outside world A. cytoskeleton B. Golgi apparatus C. cell membrane D. Plasmid

In a laser, electrical energy is changed to light energy, and a small amount of the energy is wasted as heat. Describe the total amount of the heat in the system (using the conservation of energy).

What is the name for a star and planets held together by gravity? A. solar system B. galaxy C. black hole D. supernova

When a car turns a corner on a level road, which force provides the necessary centripetal acceleration? 1) gravity 2) normal force 3) air resistance 4) tension 5) friction

Use Newton's universal law of gravitation to explain why gravity is greater on Earth than on Mercury.

What is a magnetic field and how does it interact with magnetic materials?