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On a frozen pond, a 10kg sled is given a kick that imparts to it an intial speed of v0 = 2.0m/s. The coefficient of the kinetic friction between sled and ice is Mk = 0.10. Use the work-energy theorem to find the distance the sled moves before coming to rest.
A boy on a skateboard coasts along at 6.0 m/s. He has a ball that he can throw at a speed of 10 m/s. What is the ball's speed relative to the ground if he throws the ball forward
15.0 meters from a sound source that radiates freely in all directions, the intensity is 0.00105 W/m2. What is the rate at which the source is emitting sound energy
A man holds a pail of water by the handle and whirls it around avertical circle of radius 0.84 m at constant speed. What is theminimum speed that the pail must have at the top of its circularmotion if the water is not to spill out of the upside-downp..
High jumpers usually sustain fractures in the lower third of the fibula. The world record for the high jump is held by Javier Sotomayor (Cuba) at 2.45 m (1993). what is the stress in the fibula
A 66 trampoline artist jumps vertcally upward from the top of a platform with a speed of 5.4 . A) What is his speed as he lands on the trampoline, 3 m below his jump off point? B) If the trampoline behaves like a spring with spring stiffness constant..
Three deer, A, B, and C, are grazing in a field. Deer B located 64 m from dear A at an angle of 53° north of west, What is the distance between deer A and C
A sample of animal bone unearthed at an archaeological site is found to hold 173 grams of carbon and the decay rate of 14-C in the sample is measured to be 8.10 Bq. How old is the bone.
Oxygen, modeled as an ideal gas, is in a container and has a temperature of 63.9°C. What is the rms-average magnitude of the momentum
What is the minimum uncertainly in the speed of an electron that is known to be somewhere between 0.065 nm and 0.30 nm from a proton.
If the microphone in problem 3 has an area of 0.750 cm2. What is the power intercepted by the microphone
Two point charges, +3.09 µC and -6.05 µC, are separated by 1.33 m. What is the electric potential midway between them?
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
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