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A 82 kg cross-country skierglides over snow as in Figure P11.25. The coefficient of frictionbetween skis and snow is 0.40. Assume all the snow beneath his skis is at 0°C and that all theinternal energy generated by friction is added to snow, whichsticks to his skis until melted. How far would he have to ski tomelt 4.0 kg of snow?
At a shooting competition, a contestant fires and a 13.0 bullet leaves the rifle with a muzzle speed of 130. what is the magnitude of the impulse on the target
You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long and a knight traveling on horseback at .7c is holding a lance which he measures as 10 meters long. Which lance hits the other person first
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, What is the tire pressure in pascals
While the dried up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.4 m/s at an angle of 60° above the horizontal.
A coil has 400 turns and self-inductance 4.80mH . The current in the coil varies with time according to i=(630mA)cos[pit/(0.0250s)]. Part A Max Emf induced in the coil =0.410V Part B Max flu through each turn of the coil= 8.16*10-6 Wb Part C At = 0.0..
suppose a star the size of our sun but of mass 8.0 times as great were rotating at a speed of 1.0 revolution every 11
an electron experiences a magnetic force with a magnitude of 4.60times10?15 n when moving at an angle of 60.0 with
Light of wavelength 720nm falls on two slits and produces an interference pattern in which the fourth-order fringe is 46mm, What is the separation of the two slits
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.020 N downward electric force. What is the charge on the ball bearing
A cannon fires a 7.120 kg projectile at 36.75°. If the 480.6 kg cart is pushed 12.35 meters along theground in 2.850 seconds then how fast was the projectile fired
a 1.10 balloon is filled with helium gas until it becomes a 23.0 -diameter sphere. what maximum mass can be tied to the
question how fast can you set the earth moving? in particular when you jump straight up as high as you can what is the
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