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A car of mass 1330 kg is traveling at 28.0m/s. The driver applies the brakes to bring the car to rest over adistance of 79.0 m. Calculate the retarding force acting on the car.
A weather satellite encircles the earth at an orbital speed of 6200 m/s. How high above the earth's durface does it orbit
An airplane with a speed of 76.6 m/s is climbing upward at an angle of 49.5 ° with respect to the horizontal, Relative to the ground, determine the angle of the velocity vector of the package just before impact
Sean is running a 100m dash. When the starter's pistol fires, he leaves the starting block and continues speeding up until he reaches his top speed of 11m/s 6s into the race. He holds this speed for 2s and then gradually slows down until he crosse..
A 205 kg log is pulled up a ramp by means of a rope that isparallel to the surface of the ramp. The ramp is inclined at 30degrees with respect to the horizontal. The coefficient of kineticfriction between the log and the ramp is 0.900, and the log..
A garage lift has input and lift(output)pistons with diameters of 10cm and 30cm respectively. Find the force which must be exerted on the input piston to hold this weight
Two air-track gliders of eual mass are initially moving in the same direction along a straight line, what are the speeds and directions of the gliders after the collision
A golf ball is dropped from rest from a height of 9.50 m. It hits the pavement, then bounces back up, rising just 5.50 m before falling back down again. A boy then catches the ball when it is 1.30 m above the pavement. Ignoring air resistance, cal..
If a mass is hung from a spring (whose spring constant is 2 pounds per foot) stretches the spring 0.4 meters (m), What is the force on the spring in Newtons (N)?,
As the drawing shows, two thin strips of metal are bolted together at one end and have the same temperature. One is steel, and theother is aluminum. The steel strip is 0.10% longer than thealuminum strip. By how much should the temperature of the str..
A 3.500 kg puppet oscillates at the end of a light spring of constant k = 8.00 N/m. What is the frequency of the oscillations
Find out the magnitude of its average acceleration between those points. Find the direction of its average acceleration between those points.
a glass graduated cylinder has a volume of 250 milliliters at 0deg c if the temperature is increased to 45deg c will
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