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Two capacitors are connected parallel to each other and connected to the battery with voltage 25V. Let C1= 9.2 , C2= 5.0 be their capacitances. Suppose the charged capacitors are disconnected from the source and from each other, and then reconnected to each other with plates of opposite sign together. By how much energy of the system decreases?
A sample of 10.0 mCi decays 1.2% in a single day. What is the activity after 30 days?
A flywheel comprises a uniform circular disk with a mass of 105.0 kg and a radius of 1.0 m. It rotates with an angular velocity of 1227 rev/min. What is the initial kinetic energy of the wheel
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. What is the total kinetic energy of the two blocks after the collision (in joules)
Sunlight is used in a double-slit interference experiment. The fourth-order maximum for the wavelength of 470 nm occurs at an angle of θ = 90°. Thus, it is on the verge of being eliminated from the pattern since θ cannot exceed 90°.
An armadillo and Earth attract each other gravitationally. Which experiences the greater gravitational force, or do they experience the same force magnitude?
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3310-kg space tug, How much time does it take for the ship and the asteroid to meet
The magnitude of the electric field across an axon membrane with the resting potential of -71.0 mV is 6.39e+06 V/m. How thick is the membrane
A bar magnet is oriented with its magnetic dipole moment at 38.5° to the direction of a 0.0145-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
q1. a 32 percent efficient electric power plant produces 900 mj of electric energy per second and discharges waste heat
a molten plastic flows out of a tube that is 8.0 centimeters long at a rate of 13cm^3/min, find the viscosity of the plastic
A 45 kg woman cheats on her diet and eats a 439 Calorie (439 kcal) jelly donut for breakfast. If the human body is only 28% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfas..
A 55-kg skier starts from rest at the top of a ski jump, point A is at the top of the ramp and is 40.6 m above the end of the ramp, Determine the distance (s) to where she strikes the ground.
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