During Cardiovascular Excercise, what do the heart and lungs do?

A blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.3 m/s2. a green car arrives at the position of the stop-light 5 s after the light had turned green.

8. Which sentence best describes how fast charge muves through an electric circuit? a. Charge moves very fast, faster than any human can run. b. Charge moves very slowly, slower than the proverbial snail. olan. . Tibained but

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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.3 x 10^5 N. In being launched from rest it moves a distance of 87 m and has a kinetic energy of 4.

Hanging by a thread. Two metal spheres hang from nylon threads and attract each other when brought close together. (i) What can you say about the charges on the two spheres? (ii) The spheres are now brought into contact.

Give two factors that will increase the magnetic field strength of an electromagnet

What is an example of total internal reflection at work?

Explaining how momentum can cause motion an astronaut on a space walk floats a little too far away from the space station. without air to push against, he cannot paddle back. however, the astronaut is holding a hammer.

A one-piece cylinder has a core section protruding from the larger drum and is free to rotate around its central axis. A rope wrapped around the drum of radius 1.39 m exerts a force of 3.34 N to the right on the cylinder.

In which of the following situations or places would you want to reduce the force of friction? More than one answer A. Skiing down a hill during a race. B. Walking down a steep hill. C. Sitting in the bed of a pickup truck while it turns a corner. D.