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a) If a capacitor has been left in a steady circuit for a long time, what can you say about the current going through it?
b) The circuit below has been left on for a long time. What is the voltage across the capacitor? (Hint, it is not 5V)
c) What is the charge on the capacitor?
d) What is the energy stored in the capacitor?
Vector A has polar coordinates (5, 60o)and vector B has polar coordinates (3,135o). What the scalar product of the two vectors
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of volume of water in kilograms.
A flat surface with area 1.6 m2 is in a uniform electric field of 560 N/C. What is an electric flux through the surface when it is oriented as follows.
The owner of a van installs a rear-window lens that has a focal length of -0.300 m. How far from the van is the object actually located
A 220, 45.0-cm-diameter turntable rotates on frictionless bearings at 55. A 21.0 block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
A thin, uniform, metal bar, 2.00 m long and weighing 90.0 N, ishanging vertically from the ceiling by a frictionless pivot. Find the angular speed of the bar just after the collision
The magnitude of each force is 204 N, the force on the right is applied at the angle 29 and the mass of the block is 12kg. The coefficient of friction is 0.138. The acceleration of gravity is 9.8 m/s2. What is the magnitude of the resulting accelerat..
A proton traveling at 33.3° with respect to the direction of a magnetic field of strength 3.01 mT experiences a magnetic force of 8.83 × 10-17 N. Calculate its kinetic energy in electron-volts
Determine what is the linear speed of the earth in its orbit about the sun? Give your answer in meters per second. (Consider the earth's orbit to be a circle of radius 1.50×1011 m.)
A car of mass 1200kg is heading east at 10m/s. A second car of mass 1500kg is heading west at 20.0m/s. They meet in an elastic collision. What was the initial kinetic energy of the system
A student notes that the length of a 12-inch long ruler held by her teacher (who is moving relative to her) is the same as that of her meter stick (when oriented parallel to his ruler). Find their relative speed
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