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Question: A skier of mass 68.4 kg glides down a hill of slope 26.5o at constant speed. If she travels a distance 35.0m down the hill,
Part A: What is the work done by friction?
Part B: What is the coefficient of friction between her skis and the slope?
Please provide correct answer for above questions.
Suppose you make a cup of tea with boiling water straight from a kettle, but then the phone rings, Estimate the change in entropy of the room during the cooling of the tea
A man is doing push-ups. He has a mass of 68 kg and his center of gravity is located at a horizontal distance of 0.70 m from his palms and 1.00 m from his feet. Find the forces exerted by the floor on his palms and feet
a 1000 kg car traveling south at 30ms collides with a 2500 kg truck traveling north at 15 ms.a what is the total
A heat engine operates at an efficiency of 15%. what is the amount of heat it discharges to the cold reservoir
A vertical straight wire carrying an upward 24A current exertsan attractive force per unit length of 8.8e-4 N/m on a secondparallel wire 7cm away. What current (magnitude anddirection) flows in the second wire
Two cars, starting from rest at x=0 at t=0, are racing. Car A and B both accelerate in a straight line at a constant acceleration (a=4m/s2) for 10s. After 20s, Car B crosses the finish line. How far is the finish line from the starting point of the..
A certain cable car in San Francisco can stop in 10s while travelling at maximum speed. On one occasion, driver sees a dog a distance d m in front of the car and slams on the brakes instantly.
You walk in a straight line due East, starting from your house. You walk the first 7.0 km at a constant 1.2 m/sec and the next 5.0 km at a constant 0.85 m/sec. What is your average speed for the entire journey?
at the 18th green of the u. s. open you need to make a 20.5ft putt to win the tournament. when you hit the ball giving
A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. What is the speed of the mass when the pendulum is 45(degree) above its lowest position
A charge 18 micro courier is distributed evenly over a sheet of area 3.2 meter squared position on the y-z plane. Evaluate the charge density on the sheet
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge.
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