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1. An automobile with 0.300 m radius tires travels 85,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? _______________revolutions
2. A truck with 0.590 m radius tires travels at 41.0 m/s. At how many radians per second are the tires rotating? What is this in rpm?
__________rads/s
__________rpm
3. A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 2.30 km.
a) What is its centripetal acceleration in gs? _________g
b) Suppose the pilot makes an emergency turn to avoid an approaching missile, subjecting himself to a centripetal acceleration of 10 gs, while flying at 530 m/s (supersonic). What is the radius of his turn? (This must be short-lived because fighter planes can only briefly endure such large accelerations without serious damage, and the pilot will soon black out at 10 gs.) ___________km
When subject to a steady acceleration of 0.500 g the object must be located 0.350 cm from its equilibrium position. Find out the force constant required for the spring.
A parallel-plate air capacitor of area A = 20.9 cm2 and plate separation of d = 2.50 mm is charged by a battery to a voltage of 63.0 V, What is the charge on the capacitor
A spaceship leaves Earth traveling at 0.65 c. A second spaceship leaves the first at a speed of 0.80 c with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired directly backward toward Earth
a spacecraft is in orbit around a planet. the radius of the orbit is 3.1 times the radius of the planet which is r
The asymptotic wavelength
q1. two thin wedding bands each with mass m and radius r are welded together so that each ring passes through the
a 50 kg sprinter, starting from rest, runs 50 m in 7.0 s at a constant acceleration. what is the sprinter's power output during the final 2.0 s
an object is in front of a spherical mirror; the image of the object is upright and twice the size of the object, and it appear to be 12cm behind the mirror. what is the object distance
A 10 gram bullet is fired horizontally with a speed of 155 m/s into a 0.3 kilogram block that is initially at rest at the edge of a table with a height of 1.225 meter. obtain the horizontal distance the block will traverse before landing on the gro..
In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 170 m. The average mass of each skier is 65.00 kg. What is the average power provided by the tension in the cable pulling the lift.
A particle leaves the origin with a speed of 3.3 times 10^6 m/s at 38 degrees to the positive x axis. It moves in a uniform electric field directed along positive y axis. Find Ey such that the particle will cross the x axis at x = 1.5 cm if the parti..
Without a computer algebra system, use differentiation rules to calculate the derivative. Make sure that the answer simplifies to the same answer as in part (a).
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