1. "Tony Schumacher is a NHRA Top Fuel drag racer. He holds the world record for the fastest quarter mile pass where he reached a speed of 150.2 m/s is 3.667 seconds. What was his acceleration?" 2. "An F16 fighter jet at a high altitude is flying at 472 m/s and acceleration to 611 m/s in 7.2 seconds. What is the acceleration of the fighter jet?"

Which two objects have the greatest gravitational force acting between them

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?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of