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A 1900-kg car hits a parked 2200-kg car at 32 m/s and sticks to it. What is the velocity of the two cars after the collision?
A velodrome is built for use in the Olympics. The radius of curvature of the surface is 20.1 m. At what angle should the surface be banked
By how much horizontal force would you need to apply to a 3.0 N plastic calculator to start it moving from rest? How much horizontal force would you need to keep it moving?
The work on a system with a mass 100 lbm is known to be 10 BTU's . If there is no change in potential energy and the speed changes from rest to 32 ft/sec. What is the change in the internal energy of the system?
Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, what is the expected angle of refraction in sheet 3
A 67.00 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between skis and snow is 0.19. What would be the magnitude of the acceleration.
A parallel plate capacitor is made with rectangular 50.0cm x 42.0cm plates seperated by a vacuum gap, find the capacitance between the two plates without knowing either the charge (Q) or the distance between the two plates (d)
In its own reference frame, a box has the shape of a cube 2.5mon a side. This box is loaded onto the flat floor of a spaceship, What is the volume of the box as we observe it
Transverse waves with a speed of 53.5 m/s are to be produced on a stretched string. A 4.35-m length of string with a total mass of 0.0600 kg is used. What is the required tension in the string
A pair of closely spaced parallel conducting plates, charged with equal and opposite electric charges, produces a uniform electric field in the region between them, What must the strength of the electric field be
A cylindrical conductor has resistance of R0 = 200 ? (ohms). what's the value of the new resistance in ohms
A solar cell generates a potential difference of 0.95 V when a 380 ? external resistance is connected across it, What is the internal resistance of the solar cell
A light spring of force constant k = 156 N/m rests vertically on the bottom of a large beaker of water. A 5.55-kg block of wood (density = 650 kg/m3) is connected to the spring, and block-spring system is allowed to come to static equilibrium. Wha..
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