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What happens to the force between two charges if the magnitude of both charges is tripled and the distance between them is cut in half?
A wire loops of radius 0.30 mlies so that an external magnetic field of magnitude 0.40 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 2.0 s. discover the magnitude of the average induced emf i..
Four particles, one at each of the four corners of a square with2.5-m-long edges, are connected bymassless rods. Find the moment of inertia of the system about the z axis
Find the energy transferred in 1 h by conduction through a concrete wall 2.2 m high, 3.90 m long, and 0.20 m thick if one side of the wall is held at 20°C and the other side is at 5°C
A paddle wheel frictionally adds thermal energy to an ideal monatomic gas in a sealed, insulated container. How many moles of gas must be present in this container
if the radius of the equipotential surface of a point charge is 23.0m and is at a potential of 1.30kv compared to zero
two strings of length 0.78 m hang from the same point on the ceiling . at the end of each string there is a small ball
a piece of nichrome wire has a radius of 7.2 x 10-4 m. it is used in a laboratory to make a heater that dissipates
If the crystal is 1cm thick, calculate the distance between the points where the two polarized rays emerge from the crystal.
Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.033 m in the same way as neutrons and protons are packed together in the nucleus of an atom. Approximately how many neutrons would fit inside the ball
A 9.66 × 1014 Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.05 × 108 m/s. The wavelength of the wave in vacuum is closest to:
In solid sodium chloride (table salt), chloride ions have one more electron than they have protons, find the electrostatic force between a sodium ion and a chloride ion.
water has a mass per mole of 18.0 g/mol, and each water molecule (H20) has 10 electrons. what is the net charge of all these electrons
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