Sean, an astronaut stands on the edge of a lunar crater and throws a Frisbee" horizontally with a velocity of 5.00 m/s. With no atmosphere on the moon the Frisbee " will not have any force
of lift so it will “fly” like a stone. The floor of the crater is 77.0 m below the astronaut. What
horiz ontal distance will the Frisbee™ travel before hitting the floor of the crater? (The
acceleration of gravity on the moon is 1/6th that of the Earth).

Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ∆t. the resistance of the coil is r, and the total charge is q = i∆t, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly “swiped” past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be “swiped” through the reader at exactly the right speed? why or why not?

When using the scientist method, which step comes last?

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere