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Two tiny conducting spheres are identical and carry charges of -20.7 μC and +51.7 μC. They are separated by a distance of 2.39 cm. What is the magnitude of the force that each sphere experiences?
For a very simple model, consider a solid iron sphere 2.00 cm in radius. Assume the temperature is always uniform throughout its volume. Find the energy of one photon
In lab tests on a 9.25cm cube of a certain material, a force of 1375N directed at 8.50degree to the cube, as shown in the figure, causes the cube to deform through an angle of 1.24 degree. What is the shear modulus of the material?
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed of 0.615 c. What is the velocity of the protons in the resting frame when the cannon is shot in the backward direction
A ball rolls off the edge of a horizontal tabletop, 1.70 m high. It strikes the floor at a point 1.49 m horizontally away from the edge of the table. What was its speed at the instant it left the table
A 220g baseball is pitched at 25m/s spinning at 43rad/s. What fraction of its kinetic energy is rotational
A burglar alarm in a house emits sound at a fixed frequency of 3.1 kHz. On a windy day a person cycles past the house while the alarm is sounding. What frequency does the cyclist hear
Provide rationale.
What fraction of the power radiated by the sun is intercepted by the planet Neptune? The radius of Mercury is 2.48 107 m
A ball of mass m makes a head-on-elastic collision with a second ball (at rest) and rebounds with a speed equal to one-fourth its original speed. What is the mass of the second ball.
A square is 1.0 m on a side. Charges of +4.0 uC are placed in twodiagonally opposite corners. In the other two corners are placed charges of +3.0 uC and -3.0 uC. What is the absolute potential in the square's center?
Use the surface energy balance equation to calculate the latent heat flux given that the Bowen ratio is 0.6, the net incoming radiation is 50 J m-2 s-1
A magnetic ?eld of 0.285 T exists in the region enclosed by a solenoid that has 329 turns and a diameter of 11.5 cm. What current is induced in the coil
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