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A young woman on a skateboard is pulled by a rope attached to a bicycle. The velocity of the skateboarder is v = (4.6 m/s)x and the force exerted on her by the rope is F = (17 N)x + (12 N)y.
a) Obtain the work done on the skateboarder by the rope in 30 s?
b) Assuming the velocity of the bike is the same as that of the skateboarder, obtain the work the rope does on the bicycle in 30 s?
The electric field strength is 2.00×104 N/C inside a parallel-plate capacitor by 1.50 mm spacing. An electron is released from rest at the negative plate. What is the electron’s speed when it reaches the positive plate?
In 1898, Pierre & Marie Curie isolated about 10mg of radium-226 from eight tons of uranium ore. How many radium nuclei would have decayed during this time
A 11kg hammer strikes a nail at a velocity of 8.7m/s and comes to rest in a time interval of 7.4ms, What is the impulse of the given nail
a small point charge having charge q is fixed a distance h above a thin infinitely long line of charge with charge
An electron enters a region of magnetic field of magnitude 0.010 0T, traveling perpendicular to the linear boundary of the region.The direction of the field is perpendicular to the velocity of the electron.
A 2.45 kilogram steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0 degree with the surface. estimate the average force exerted on ball by the wall
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
The compressor of an air conditioner draws an electric current of 21.2 A when it starts up. If the start-up time is 1.75 s long, then how much electric charge passes through the circuit during this period?
What exactly is the work function of a metal? Is it the jolt of energy required to obtain any electron out? The maximum jolt of energy needed to obtain an electron out? The minimum jolt ? Something else?
Two converging lenses are separated with 24.00cm. The focal length of each lens is 12.00cm. An object is placed 36.00cm to the left of the lens that is on the left. Decide the final image distance relative to the lens on the right.
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
A child runs down a 10 degree hill and then suddenly jumps upward at a 17 degree angle above horizontal and lands 1.5 m down the hill as measured along the hill. what was the initial speed?
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