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Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 2.00-m-long conducting wire. A charge of 60.0 µC is placed on one of the conductors. Assume that the surface distribution of charge on each sphere is uniform. Determine the tension in the wire.
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.8kg of it were allowed to vaporize in the refrigerator, how many grams of ice would be formed from 0 °C water.
q1. a 3.3 block of wood sits on a table. a 3.0 bullet fired horizontally at a speed of 480 goes completely through the
A pitcher claims he can throw a 0.145-kg baseball with as much momentum as a 3.5-g bullet moving with a speed of 1.25 x 103 m/s. What must the baseball's speed be if the pitcher's claim is valid
A uniform plank of length 2m and mass 29kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690N person is 0.500m from the left end.
gravity affects any object that has mass. does gravity affect light rays? a beam of light emitted from a distant star
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
A solid ball and a hollow ball, each with a mass of 2.29 kg and radius 0.115 m, start from rest and roll down a ramp of length 2.77 m at an incline of 32.7°
A 74 kg man in a 5.0 kg chair tilts back so that all the weight is balanced on two legs of the chair. find the pressure exerted by each leg on the floor
A 1.7 kg mass is held at rest on top of a frictionless and horizontal table. A light string loops over a pulley which is in the shape of a 10 cm radius solid disk which has a mass of 1.7 kg. The light string then supports a mass of 1.7 kg which is..
A piece of glass has a temperature of 81.0 °C. Liquid that has a temperature of 37.0 °C is poured over the glass, completely covering it, determine the specific heat capacity of the liquid
Two capacitors, C1 = 28.0 µF and C2 = 41.0 µF, are connected in series, and a 18.0-V battery is connected across them. find the energy stored in each individual capacitor
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. The intensity level of these sounds can reach 97 dB, measured a distance of 6.0 m from the source.
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