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A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has a capacitance of 3000 x 10-6 F and is charged to a potential difference of 87.0 V. Calculate the amount of energy stored in the capacitor.
An "extreme" pogo stick utilizes a spring whose uncompressed length is 34 cm and whose force constant is 1.2×104 N/m. Calculate her upward acceleration, in g's at that moment
Spark plugs should be tightened to a specified torque of 13.8Nm. You have a wrench that is 0.25 m long, What force must you exert on the wrench
An extension cord made of two wires of diameter 0.129 {rm cm} (no. 16 copper wire) and of length 1.5 m (5 ft) is connected to an electric heater which draws 13.5 A on a 120-{rm V} line. How much power is dissipated in the cord.
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, how fast did the ball strike the ground
Mars has a mass of 6.42 1023 kg and a radius of 3.40 106 m. Assume it is a uniform solid sphere. The distance of Mars from the Sun is 2.28 1011 m. What is the rotational kinetic energy of Mars on its axis
How high will a 0.32kg rock go if thrown straight up by someone who does 119J of work on it? Avoid air resistance.
A 2.00 kg mass is located at (4.00 m, 0.00 m, 0.00 m) and a 4.00 kg mass is located at (0.00 m, 3.00 m, 0.00 m). If this system of masses rotated about the X-axis perpendicular to the Z-Y plane, then the moment of inertia of this system is ?
If half the potential energy of this water were converted into electric energy, explain how much electric power would be produced by these falls?
a describe internal normal shear force and moment inside a member of a frame. what causes these questions ?b describe
A body moves with respect to a stationary reference point. At time 1.0 s, position of the body is given by vector R1 bar that points to the east of the reference point, Find the average velocity of the body
A parallel-plate capacitor has 1.00 cm2 plates that are separated by7.00 mm with air between them. how much energy does it store
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.91 × 105 W. calculate the corresponding sound intensity level
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