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Compute all parts of given question:
Question: A 53.0-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.790 and 0.440, respectively.
Part A: What horizontal pushing force is required to just start the crate moving?
N
part B: What horizontal pushing force is required to slide the crate across the dock at a constant speed?
If possible just a brief explanation how you got the answer?
A spiral staircase winds up to the top of a tower in an old castle. To measure the height of the tower, a rope is attached to the top of the tower, What is the height of the tower
A train moving with a constant speed of 75 km/hr moves east for 45 minutes then in a direction 20o east of north for 60 minutes. Find the magnitude of the average velocity of the train
A rectangular fish tank measures 20 cm by 70 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the total force of the water on the bottom
q1. a 1250 n uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. a w
Consider a volume of 4.8 cubic meters of gas initially at STP (0 degrees C and 1 atm pressure). what is the volume (in cubic meters) of the gas
An electron has an initial velocity of 8.00 106 m/s in a uniform 7.00 105 N/C strength electric field. How long does it take the electron to come to rest
a particular air conditioner can remove heat from a room at a rate of 150 w. heat is also added to the room through
A uniform disk with mass 43.1 kg and radius 0.230 m is pivoted at its center about a horizontal, frictionless axle that is stationary. What is the magnitude a of the resultant acceleration of a point on the rim of the disk after the disk has turned..
A ball of mass 1.5 kg is thrown upward. It leaves the thrower's hand with a velocity of 10 m/s. After the ball hits the thrower's hand, it comes to rest in a time of .25s. Define is the net impulse exerted on the ball?
At an accident scene on a level road, investigators measure a van's skid mark to be 86 meter long. estimate the speed of the van when the driver slammed on (and locked) the brakes
john is listening to a horn. he knows the frequency of the horn is 516.402 hz when both he and the horn are at rest. if
A camera has a lens with a focal length of 29.4 cm. When an object is placed 3.95 meters away is being photographed, how far from the film should the lens be placed
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