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An asteroid is discovered heading straight toward Earth at 12km/s. An international team manages to attach a giant rocket engineto the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 25 degrees to its original path at a speedof 20 km/s.
Find its average acceleration.
A 3.3-m-diameter merry-go-round with rotational inertia 100kg?m2 is spinning freely at 0.60rev/s. Determine the total energy lost to friction
A person drops a cylindrical steel bar (Y = 1.50 × 1011 Pa) from a height of 3.00 m (distance between the floor and the bottom of the vertically oriented bar). what is the maximum compression of the bar
A long, straight wire of length 0.75 m carries a current of I=1.5 A in a region where B= 2.3 T. what is the angle between the field and the wire
A 3.0-kg cylinder falls vertically from rest in a very tall, evacuated tube 20m above the surface of the earth. what is its kinetic energy just before it hits the earth
A satellite moves in a circular orbit around Earth at a speed of 4714 m/s. Determine the satellite's altitude above the surface of Earth
a assume the maximum shear stress that bone as a material can withstand is tau max 57 mpa prior to failure. determine
A car driving at 33 m/s is approaching a stoplight. As the stoplight turns red, the driver decides that the car is going too fast to stop at the white line and hits the brakes hard. How fast was the car going when the driver changed the rate of dec..
A beam of neutrons with a de Broglie wavelength of 0.260nm diffracts from a crystal of table salt, which has an interionic spacing of 0.280nm, What is the speed of the neutrons
A tank is 2m above the connection to the water controls. The water then travels up a vertical pipe to the shower head 3.5m above the water controls. Determine the water pressure at the shower controls
A 180 W light bulb is plugged into a standard 110 Voutlet. How much does it cost per month (31 days) to leavethe light turned on, evaluate What is the current of the bulb
A delivery truck travels 13 km north, 17 km east, and 29 km south. What is the angle of the final displacement relative to the east
A hard steel ball is dropped from rest at postion y = 2h and bounces from a hard surface tilted at an angle phi from horizontal. On impact, Find the horizontal displacment of the ball
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