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Question: A 2.2 mm -diameter glass bead is positively charged. The potential difference between a point 2.3 mm from the bead and a point 4.0 mm from the bead is 500 V. What is the charge on the bead? Express your answer using two significant figures. q = ________C
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
A certain superconducting magnet in the form of a solenoid of length 0.60 m can generate a magnetic field of 6.0 T in its core, Find the number of turns in the solenoid
The electric potential at a position located a distance of 21.3 mm from a positive point charge of 7.90×10-9C and 14.8 mm from a second point charge is 1.18 kV. Compute the value of the second charge.
A 25-g string is streched with a tension of 43.0 N between two fixed points 12.0 m apart. What is the frequency of the second harmonic
A ray of light strikes a mirror at an angle of 35.8° to the normal. What is the angle that the reflected angle makes with the normal
A ladder of length b and weight W rests on a smooth floor and leans against a smooth vertical wall, the lower end of the ladder being attached by a string to a point on the wall a height h above the floor. If the ladder makes an angle theta with the ..
The first bob has mass 0.25 kg and the second has mass 0.85 kg. The first bob is drawn back to a 35 degree angle with the vertical, and then released such that it swings down and collides with the other bob. To what maximum angle will the second bo..
In the figure R1 = 4.11 ?, R2 = 19.7 ?, and the ideal battery has emf ? = 13.0 V. How much energy is dissipated by all four resistors
A cube of ice is taken from the freezer at -9.5°C and placed in a 105 g aluminum calorimeter filled with 323 g of water at room temperature of 20°C. What was the mass of the ice cube
There is strong evidence that the center of the Milky Way galaxy contains a giant black hole with a mass of perhaps one million Suns. find the maximum radius of a million-solar-mass black hole
an electromagnetic wave strikes a 2.40-cm2 section of wall perpendicularly. the rms value of the waves magnetic field
a girl throws a rock horizontally with a velocity of 10 ms from a bridge. it falls 20 m to the water below. how far
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