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A neon sign at the Catskellar requires 12,000 V to operate which is supplied by a transformer.
(a) If the primary on the transformer has 15 turns and is connected to a 120-V outlet, how many turns does the secondary have?
(b) If the primary draws 0.5 A, how much current is suppplied to the neon sign?
A pendulum is made out of a ( 251.3+-0.1)g mass and a string that is (1.3+-0.005)m long. If the mass has a speed of (1.3+-0.1)m/s, Calculate the tension of the string and its uncertainty
An electron and a proton are each placed at rest in an electric ?eld of 334 N/C. What is the velocity of the electron 46.2 ns after being released
question1a block with mass m 5.3 kg is attached to 2 springs with spring constants kleft 33.0 nm and kright 49.0 nm.
As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.3 m/s. The ball hits the court at a horizontal distance of 19.3 m from the racket. How far above the court is the tennis ball when it leaves the racket?
Explain the velocity of two different objects: heavy rock & light feather. 1st, describe what happens when the two objects are dropped on Earth. 2nd, compare this to what happens on the Moon.
A steel wire of length 1.97 with circular cross section must stretch no more than 0.260 when a tensile (stretching) force of 400 is applied to each end of the wire. What is the minimum diameter necessary.
The Cosmic Background Radiation Outer space is filled with a sea of photons, created in the early moments of the universe. What is the peak frequency of this radiation
A research submarine has a 40.0cm -diameter window 8.30cm thick. The manufacturer says the window can withstand forces up to 1.10×106N
A hot-air balloon has a volume of 2741 m3. The density of the air outside the balloon is 1.205 kg/m3. How much weight can the balloon lift
A package of mass m is released from rest at a warehouse loading dock and slides down a 3.0-m-highfrictionless chute to a waiting truck. To what height does the package of mass m rebound
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm. what's the balloon's new radius
A satellite is in a low circular orbit about the Earth (such as it just skims the surface of the Earth). How long does it take to make one revolution around Earth.
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