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An extreme skier, starting from rest, coasts down a mountain that makes an angle of 34.3 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.175. She coasts for a distance of 10.4 m before coming to the edge of a cliff. Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.24 m below the edge. How fast is she going just before she lands?
A thyroid cancer patioent is given a dosage of 131I, What faction of the dosage will still be in the patient's thyroid
A 1.50 kg box (position is given in meters and time is given in seconds) slides on ice for 1.5 seconds and then encounters a rough surface. Find out the momentum at the start of the animation. Is momentum conserved during the first 1.5 seconds? Is..
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
Two farmers are standing on opposite sides of a very large empty field that is 520.6 m across. What is the temperature of the air
Just before the collision and in kilometers per hour, what was the speed of the rocket piece relative to the satellite if both were in circular orbits and the collision was (a) head-on and (b) along perpendicular paths.
A certain parallel-plate capacitor is filled with a dielectric for which ? = 4.5. The area of each plate is 0.026 m2, find the maximum energy that can be stored in the capacitor
If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Suppose right is the positive direction.)
A 1.5 ?F capacitor is charged to 57 V by a battery, which is then removed. At time t = 0, Calculate the potential difference VL(t) across the inductor as a function o
A subway train has a sound intensity level of 90 dB, and a rock band has a sound intensity level of 110 dB. How many times greater is the sound intensity of the band than that of the train
Frames S and S' are moving relative to each other along the x and x' axes. They set their clocks to t = t' = 0 when their origins coincide, Compute the spacetime interval ?s between the events
You sing into a well and find that the well resonates at frequencies of 198 Hz and 234 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode
A potential di?erence of 10 V is found to produce a current of 0.44 A in a wire of length 3.1 m with a uniform radius of 0.44 cm What is the resistivity of the wire
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