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A parallel-plate air capacitor of area A=16.0cm2 and plate separation d=3.40mm is charged by a battery to a voltage 52.0V. If a dielectric material with kappa=3.70 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery), how much additional charge will flow from the battery onto the positive plate?
A 15.0 m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes a 60.0 angle with the horizontal. Find out the horizontal and vertical forces the ground exerts on the base of the ladder when an 800 N fire-fighter is 4.00m f..
A 500 Hz whistle is moved toward a listener at a speed of 10 m/s. At the same time, What is the apparent frequency heard by the listener
Two loudspeaker, 4.0 m apart and facing each other, play identical sounds of the same frequency. You stand halfway between them, where there is a max. of sound intensity. moving from this point toward one of the speakers, you encounter a min. of s..
Find the angle of the first order maximum. what horizontal distance does it travel before it lands on building.
Calculate the x-component of vector. A uniform electric field of magnitude 375 N/C pointing in the positive x-direction acts on an electron, which is initially at rest.
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. find the speed of the sled right before the team jumps on the sled
A gymnast with mass m1 = 41 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 108 kg and length L = 5 m. Each support is 1/3 of the way from each end. at least the gymnast stands at the left end of..
A person who weighs 684 N steps onto a spring scale in bathroom, and the spring compresses by 0.518 cm. (a) What is the spring constant? (b) What is the weight of another person who compresses spring by 0.328 cm.
A man does 4,735 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v, over a distance of 25.0 m. determine the horizontal force exerted on the truck
A light plane is headed due south with a speed of 190km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 137km, What is the wind velocity (magnitude)
When the afternoon Sun reaches an angle of 30° above the horizon, sunlight ceases to clarify any part of the bottom of the tank. How deep is the tank.
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. How much time is required for the projectile to come up to speed
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