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Imagine removing one electron from every atom in a tiny cube of gold 1 mm on a side. (Never mind how you would hold the resulting positively charged cube together.) Do the same thing with another such cube a meter away. What is the repulsive force between the two cubes? Density of gold is 19.3g/cm^3 and has a molecular weight of 197 (197 g/mol)
q1. two speakers one directly behind the other are each generating a 374-hz sound wave. what is the smallest parting
Coherent light with wavelength 599nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of central brigh..
A 0.350-kilogram cup at 10 °C is filled with 0.100 kg of boiling coffee. what is the specific heat of the cup material
A modern house is wired for 120.0 V, and the current is limited by circuit breakers to a maximum of 290.0 A. (For the purpose of this problem, treat these as DC quantities.) Calculate the minimum total resistance the circuitry in the house can hav..
A jogger on a circular track that has the radius of 0.150km runs a distance of 1.10km. What angular distance does the jogger covers in radians.
A ball of mass 0.200 kg has a velocity of ; a ball of mass 0.300 kg has a velocity of . They meet in a head-on elastic collision. Proof that the collision was elastic
a series RLC circuit has a resistance of 500 ohms, and inductance of 20.0 mH, and a capacitance of 2.00 uF. what is the peak current in this circuit
A 3.00 gram lead bullet is moving at 180. m/s andenters a bag of sand and stops. By what amount does the temperature of the bullet change if all its kinetic energy becomes thermal energy.
An air-filled ion chamber is operated at a pressure of 3 atm, find the saturated ion current corresponding to a gamma-ray exposure of 1 mR/h
You want to build a raft that can hold you (76 kg) plus some supplies (39 kg) for a long trip. how many logs do you need
A child and sled with a combined mass of 42.0 kg slide down a frictionless slope. what is the height of the hill
A disk-shaped space station 175 m in diameter spins uniformly about an axis perpendicular to the plane of the disk through its center. How many rpm (rev/min) must this disk make
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