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Q. A ski starts from rest and slides down a 22° incline 75 m long. If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? If there is snow level at foot of the incline and it has the same coefficient of friction, how far would the ski travel along the level?
Q. A 33kg crate rests on a horizontal floor, and a 73kg person is standing on the crate. Find out the magnitude of the normal force that floor exerts on the crate. Also determine the magnitude of the normal force that crate exerts on the person.
A toy cork gun contains a spring whose spring constant is 10.02 N/m. The spring is compressed 5.0 cm and then used to propel a 6.00 g cork. The cork, however, sticks to the spring for 1 cm beyond its unstretched length before separation occurs. The m..
Keeping a constant speed of 0.6 m/s, a marble of mass 18 g rolls back & forth across a shoebox that is 14 cm high & 2 mm thick. Estimate the probability of its escaping through the wall of the box by quantum tunnelling.
make Use of Stefans law to calculate the total power. What is the magnitude and direction of the force she exerts on you.
A car rounds a banked curve. The radius of curvature of the road is R .the banking angle is a. the coefficient static friction is f.
A motorist drives south at 27.0 m/s for 3.90 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 40.0 m/s for 1.00 min. For this 6.40 min trip, find the values.
What is the coefficient of static friction
What is first order diffraction angle of light
A bat flying in a cave emits a sound and receives its echo 0.37s later. How far away is the cave wall? (Hint: The sound has to travel to the wall and then back again. Use 340 m/s for the speed of sound.)
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
What fraction of incident intensity is transmitted by system
The position of an air-track cart that is oscillating on a spring is given by the equation x = 12.4 cos[(6.35 s-1)t] . At what value of t after t= 0.00s in the cart first located at x = 8.47 cm ?
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