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Problem: A skier of mass 125 kg travels down a ski trail. Suppose the ski trail is not frictionless. If the skier has a speed of 50 m/s at the bottom of the hill,
Part A: What is the work done by friction on the skier?
I need help to calculate the work done by friction on the skier and assume the skier starts at rest at the top of the hill.
A simple pendulum is swinging back and forth during a small angle, its motion repeating every 1.13 s. How much longer must the pendulum be made in order to increase its period by 0.29 s?
a -3.4 nc charge is on the x-axis at x1 -7 cm and a 4.2 nc charge is on the x-axis at x2 13cm.at what point or points
one recent study has shown that x rays with a wavelength of 0.0050 nm can produce significant numbers of mutations in
you are keeping pace with another runner at 6 minutes per mile but are 10 m behind her when she is 100m from the finish
A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal
A thick spherical shell made of conducting metal has inner radius R1 = 0.200 m and outer radius R2= 0.300 m. What is the magnitude of the resultant electric field
A cable is made by bundling together 100 such wires. What is the resistance per meter of such a cable
A 374-kg sailboat has an acceleration of 0.643 m/s2 at an angle of 58.9 ° north of east. find the direction of the net force that acts on the sailboat
A person of mass 89.70 kg escapes from the burning building by jumping from a window situated 27.50 m above a catching net.
A grandfather clock is controlled by a swinging brass pendulum that is 1.0 m long at a temperature of 22°C. What is the length of the pendulum rod when the temperature drops to 0.0°C?
The Ed-Scale defines the perfect temperature of a martini to be 14 degrees E and the boiling point of antifreeze to be 100 degrees E. Use this equation to find the freezing point of water in Eds
A block of mass m = 3.40 kg is pushed a distance d = 2.30 m along a frictionless, Determine the work done by the net force on the block.
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