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A uniform electric field of magnitude 400V/m is directed in the positive x-direction. A10 µC charge moves from the origin to the point (x, y) = (20 cm, 50 cm).
a) What was the change in the potential energy of this charge?
b) During what potential difference did the charge move?
The morning sounding shows an is othermal layer from 800 to 700 mbat -11oC, and the temperature in the layer from 390 to250 mb decreases steadily from -47 to -55oC. What is the thickness of these layers?
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.3 104 rev/min. Find the drill's angular acceleration
Copper has an electrical resistivity %u03C1 = 1.72 x 10-8 %u2126m. What is the electrical resistance of a copper wire
A 2250 kg satellite used in a cellular telephone network is in a circular orbit at a height of 510 km abouve the surface of the earth. what is the gravitational force on the satellite
What friction torque is required to reduce its angular speed from 80.0 to 51 in 27.
The muon, with mass mμ=209me, acts as a heavy electron. The muon can bind to a proton to form a muonicatom. Calculate the ionization energy of this atom, and calculate the radius of the muonic atom in its ground state.
The bullet remains in the block, and after the impact the block lands d = 1.90 m from the bottom of the table. How much time does it take the block to reach the ground once it flies off the edge of the table.
A certain copper wire has a resistance of 11.0?. What is the resistance of each piece
The Cosmic Background Radiation Outer space is filled with a sea of photons, created in the early moments of the universe. What is the peak frequency of this radiation
question 1 a golfer hits a shot to a green that is elevated 2.80 m above the point where the ball is struck. the ball
There is a +4.00nC at the origin. A second charge is placed at(-4.00 cm, 0). this second charge reduces the electrical field tozero at the point (+10.0cm, 0). what is the value of the charge?
A diverging lens with a focal length of -22 cm and a converging lens with a focal length of 19 cm have a common central axis. Their separation is 19 cm. An object of height 3.0 cm is 10 cm in front of the diverging lens, on the common central axis..
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