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A 60 kg skier skis a distance of d=200 m down a q=15o incline starting from rest. His speed at the bottom of the hill is 5 m/s. (8 points)
a) What was the NET work done on the skier?
b) What was the work done by friction?
c) What was the average frictional force?
A heat engine having an ideal monatomic gas as a working substance has a cycle consisting of the following three processes: isobaric expansion at 200 kPa.
The owner of a van installs a rear-window lens that has a focal length of -0.340 m. When the owner looks out through the lens at an object located directly behind the van, How far from the van is the object actually located
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, identify the average resistance force exerted on him by the water.
An object-spring system oscillates with amplitude of 3.00cm. If the spring constant is 205 N/m and object has a mass of 0.50 kg, determine each of the following values.
You hold a spherical salad bowl 80cm in front of your face with the bottom of the bowl facing you. What is the orientation is it erect or inverted
The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, compute the speed of the sports car at impact.
Illustrate what are the distinguishing characteristics of the EMTN and explain why it is such a popular form of financing for MNEs?
A rocket blasts off from a platform on a space station. An identical rocket blast off from free space. Considering that everything else is equal, will the two rockets have the same acceleration? define.
What's the quickest way to approach this problem? A car is traveling at 80 km/h along the highway. A second car is located 1 km behind, but traveling at 100 km/h. How long does it take for the second car to pass the first?
Suppose the space shuttle is in orbit 460km from the Earth's surface, and circles the Earth about once every 93.80 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, gravitational accelera..
If the phase angle for a block-spring system in SHM is pi/6 rad and the block's position is given by x = xm cos(wt + pi). what is the ratio of the kinetic energy to the potential enery at time t = 0
A 0.34 kg iron horseshoe that is initially at 616 ?C is dropped into a bucket containing 25 kg of water at 28 ?C. What is the final equilibrium temperature? Avoid any energy transfer to or from the surroundings and assume the specific heat of iron is..
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