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An air-filled parallel-plate capacitor has plates of area 2.10 cm2 separated by 0.50 mm. The capacitor is connected to a 3.0 V battery.
(a) Find the value of its capacitance. pF
(b) What is the charge on the capacitor? pC
(c) What is the magnitude of the uniform electric field between the plates? N/C
A 1.67 m tall person lifts a 2.34 kg book from the ground so it is 2.22 m above the ground. Calculate the work done by the person
if the mass of the diver is 134kg and the board is 9m long, illustrate what is the torque due to gravity on the diving board with a pivot point at the fixed end of the board?
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.30 m/s at 68.5° below the horizontal
A bag of cement of weight 375 N hangs from three wires as suggested in Figure P5.18. Two of the wires make angles θ1 = 55.0° and θ2 = 25.0° with the horizontal. If the system is in equilibrium, find out the tensions in the wires.
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m.
Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0.10, and m2 = 2.0kg with a coefficient of 0.20, are placed on a plane inclined at 0 = 30o.
Gracie slides down a frictionless slide of length L that makes an angle (theta) with the ground. (A.) Gracie starts out at rest at the top of the slide.
A string is attached to the center of a solid cylinder. The cylinder sits on a horizontal surface made of concrete and rolls without slipping. find the magnitude of the static friction acting on the cylinder
In the figure particles with charges q1 = +5e and q2 = -13e are fixed in place with a separation of d = 21.3 cm, what are the finite positive and negative values of x
An 0.82 kg bucket full of water is being swung by a rope in a vertical circle of diameter 2.31 m. Compute the least speed a bucket must be moving so that the water doesn't fall out.
A small monkey is traveling along a branch, What is the max speed of the monkey during this interval? Show all calculations
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
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