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A protonand an electron are held in place on the xaxis. The proton is at x =–d, while the electron isat x = + d. They are released simultaneously, and the only force that affectstheir motions is the electrostatic force of attraction that eachapplies to the other. Which particle reaches the origin first? Giveyour reasoning.
A box of mass 15 kg slides at a constant velocity, along a flat surface, with a coefficient of kinectic friction of 0.75. how much work is done is done by the normal force
What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. The left end is put on the tailgate of the truck. However the tailgate is tilted a bit, so it only contacts the boar..
An object with a mass of m = 4.8 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.225 m, Determine the magnitude of the acceleration of the object
A piece of string wraps around a cylinder 8 times. The length of the string is 14 cm. calculate the circumference of the cylinder.
A child is riding a merry-go-round which completes a revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. Evalute the magnitude of the centripetal acceleration of the child?
A woman stands on a scale in a moving elevator. Her massis 60.0 kg and the combined mass of the elevator and scale is anadditional 815 kg. What does the scale readduring the acceleration
A "biconvex" lens is one in which both surfaces of the lens bulge outwards. What is the focal length f of this lens in air
A steel wire, 3.2 m long, has a diameter of 1.2 mm. The wire stretches 1.6 mm when it bears a load. What is the mass of the load
A chamber with a fixed volume of 1.0 m3 contains a monatomic gas at 3.00 102 K. The chamber is heated to a temperature of 5.00 102 K. How many gas molecules are in the chamber
A resistance thermometer using a platinum wire is used to measure the temperature of a liquid. The resistance of is 2.42ohms at 0 degrees, calculate the temperature of the liquid
If an electric clothes dryer has a power rating of 5000 watts and is used for 1 hour per day, how much money can be saved in a month
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