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Sam, whose mass is 71.0kg , takes off down a 45.0m high, 8.00? slope on his jet-powered skis. The skis have a thrust of 190N . Sam's speed at the bottom is 39.0m/s .
What is the coefficient of kinetic friction of his skis on snow?
a 100mA current flows through a copper wire 0.10mm in diameter, a 1.0mm diameter glass tube containing a salt solution, and a vacuum tube, Find the drift speed in the electron beam
The verical displacement of a string is given by y(x,t)=(6.00 mm) cos[(3.25m^-1)x-(7.22s^-1)t]. What is the speed of the wave
A single loop of wire with an area of 9.05×10?2 m2 is in a uniform magnetic field that has an initial value of 3.69 T , find the current induced in the loop
What is the linear charge density together the arc.
A thin 7.3-m metal rod sustanins a longitudinal standing wave with vibration antinodes at each end of the rod. What is the frequency of the rod's vibration
From the equation for the line of best fit given, what is the magnitude of the crankshaft's angular acceleration? Express your answer using two significant figures.
A cricket ball is bowled at a speed of 144 km/hr. suppose the ball diameter is 70 mm and a drag coefficient 0.45, estimate the drag force in newtons which would be acting on the ball.
How many photons are emitted during 7.0 s of operation of a red laser pointer? The device outputs 2.5 Watts at a 635 nm wavelength
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. What is the rate at which water flows out, in cubic meters per second
A pair of slits separated by d = 1.30 mm is illuminated with light of = 610 nmwavelength and falls on a screen L = 2.00 m away. what was the minimum glass thickness
A solid disk of mass m1 = 9.5 kg and radius R = 0.18 m is rotating with a constant angular velocity of ω = 39 rad/s. What average torque was exerted on the rod by the disk
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