Which two claims from the passage have supporting evidence? He discovered new ways to generate, store, and turn on electricity.
His design of lightning rods helped prevent untold numbers of structural fires throughout the world.
Benjamin Franklin was fascinated by electricity and gave a lot of his time after he retired to study its properties.
Franklin asked his son William to fly a kite to which he had attached a wire on top and a key at the end of a string.
He did not mention the experiment until October, four months after it took place, at which point Franklin did not clarify that he had conducted the experiment himself—an issue that has caused some people to doubt Franklin's story.

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .

Suppose you hit your hand against the edge of table. using newton’s third law of motion why does my hand hurt? explain