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Imagine assembling four equal charges, one at a time, and putting them at the corners of a square. Find the total work done to assemble these if the charges are each 5 μC and the square has 25 cm sides.
You put your morning coffee in a copper mug. Assuming the coffee is boiling hot (100 *C), what is the temperature of the cup of coffee
Calculate the shear stress of the crude oil at the walls, and plotting the velocity distribution graph for the same.
A hollow metal sphere has 6 cm and 10 cm inner and outer radii, respectively, What are the strength and direction of the electric fi eld at points 4, 8, and 12 cm from the centre
the earths magnetic field can affect the electron beam in an oscilloscope or a television tube. an electron that has
Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. A typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 Cal each day for basic body processes.
A force of 17 N is applied to the end of a 0.63 m long torque wrench at an angle 45° from a line joining the pivot point to the handle
An electron approaches a potential barrier10 eV high and 0.30 nm wide. If the electron has a 2.0 percentprobability of tunneling through the barrier, what must its energy be
One mole of an ideal gas initially at a temperature of Ti = 6.8°C undergoes an expansion at a constant pressure of 1.00 atm to seven times its original volume. Calculate the new temperature Tf of the gas
A person who is properly restrained by an over-the-shoulder seatbelt has a good chance of surviving a car collision if the deceleration does not exceed 30 "g's"(1.00g = 9.80 m/s2).
Two blocks of the same mass 0.5 kg head-on collide on a frictionless horizontal surface. The velocities before the collision are v1 = 1.0 m/s, v2 = -3.0 m/s. What is the center-of-mass velocity
if the block is raised back to 100 meters without gaining or losing heat from the environment, What is the blocks temp after it was raised
Transverse waves travel at 20.8 m/s on a string that is under a tension of 7.00 N. What tension is required for a wave speed of 30.8 m/s in the string
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