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A cubical Gaussian surface surrounds two charges,q1 = +6.8×10-12 C and q2 = -2.0×10-12 C, as thedrawing shows. What is the electric flux passing through the surface?
A 1 uF capacitor is charged when it is connected across a 9 V battery, Find the final charge and the voltage across the plates for the 1 uF and 2 uF capacitor
A 7.80-g bullet moving at 560 m/s penetrates a tree trunk to a depth of 5.2 cm. Use work and energy considerations to find the average frictional force that stops the bullet
q1. a 20 kg block is at rest on a horizontal floor. if you push horizontally on the 20 kg block with a force of 50 n it
Assume a water strider has a roughly circular foot of radius 0.01 mm. What is the maximum possible upward force on the foot due to surface tension of the water
A 10 resistor, 10 mH inductor, and a 110.0 µF capacitor are connected in series to a 50.0 V (rms) source having variable frequency. Find out the energy delivered to the circuit during one period if the operating frequency is twice the resonance fr..
What is an amplitude at a point where two pulses are crossing if the end at which reflection occurs is free to slide up and down.
A ball of mas 0.250. Kg is attached to a string 0.750 m long. The ball is swung in a s pendulum-type motion such that it has a speed of 6.40 m/s, What is the corresponding tension in the string
In a metal, each atom and its core electrons are connected by "springs" to each of their neighbors. This would give a specific heat capacity of Cv= 3 KB. In addiction, each atom donates an electron to the conduction bound where they behave like a ..
(a) Three point charges, A = 2.2 µC, B = 7.5 µC, and C = -3.9 µC, are located at the corners of an equilateral triangle. Find the magnitude and direction of the electric field at the position of the 2.2 µC charge.
A mass of 7 kg lies on a frictionless, horizontal floor. A force of 110 Newtons is applied to the mass at an angle above the positive x axis, what is the magnitude of the acceleration on the mass
A 21.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. How far to the side does the top of the pole flex
Two people carry a heavy electric motor by placing it on a light board 1.50{\rm m} long. One person lifts at one end with a force of 370{\rm N} , What is the weight of the motor
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