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A 900 kg car traveling at an angle of 30 south ofeast at 18 m/s collides with a 750 car traveling north at 23m/s.The cars stick together. What is the speed of the wreckage just after the collision?
A 5 kg block sits on an inclined plane with angle 30o. A force is applied up the incline. What is the magnitude of the applied force required to keep the block stationary? (assuming no friction)
A tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement grid. To add an extra degree of randomness, the coordinates of the center of mass of the three dice are used as well
A uniform 1.5-kg rod that is 0.81 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Find the angle that the rod makes with the horizontal
A 4-kg rock is tied to the end of a string and twirled overhead, 1.7 m above the ground, in a 1.1-m radius, horizontal circle. How far away from its location when the string breaks will the rock hit the ground
A .30-06 rifle fires a bullet with a mass of 10 g at a velocity of 800 m/s. If the rifle has a mass of 4 kg, what is its recoil speed
During the late 19th and early 20th centuries, direct observations showed that a glacier in Switzerland flowed forward in the downhill direction while its snout (terminus) was retreating higher up the valley? Which of the following describes these..
Find out the force each hand exerts on the shaft when the shaft is rotating in the horizontal plane about its center at 5×10-2 {rm rev/s}.
The 500[m] Short Track speed skating Olympic world record is 39:937[sec] held by American JR Celski. Calculate JR's average speed in [miles=hr] during his record- setting performance.
A concave lens has a focal length of -28 cm. Find the image distance and magnification that results when an object is placed 22 cm in front of the lens
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 84.0 cm from her eyes, How far away is the poster actually located
q1. if a power source provides 54 watts of power to operate a machine that draws 4.5 amps of current when in use what
To determine the radius of gyration of a tire, an engineer lets the tire roll down an inclined surface. what is the radius of gyration of the tire
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