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A transformer with a turns ratio (secondary/primary) of 1:10 is used to step down the voltage from a 120 V-wall socket to be used in a battery recharging unit.
What is the voltage supplied to the recharger?
You are on the Turkish Twist, an amusement park ride with your back against the wall of a spinning vertical cylinder of radius 4.0 m, What is the minimum number of revolutions per minute necessary to prevent you from sliding down the wall
At the same instant that a motionless 9.6 kg ball is dropped from 27 m above the Earth's surface, a second ball, what is the velocity of the center of mass of the two-ball system
A diffraction grating with 330 {rm lines/mm} is 1.00 {rm m} in front of a screen. What is the wavelength of light whose first-order maxima will be 17.0 {rm cm} from the central maximum on the screen.
Two adjacent natural frequencies of an organ pipe are found to be 450 Hz and 495 Hz. What is the length of the pipe
q1. a 4.00 x 100 g glass coffee cup is 22.0 c at room temperature. it is next plunged into hot dishwater at the
A track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. What is the angular speed of the wheel
A 6.0 V battery is connected in series with a 29 mH inductor, a 110 ohm resistor, and an open switch. How much energy is stored in the inductor
Two balls undergo a perfectly elastic head-on collision, with one ball initially at rest. If incoming ball has a speed of 200 m/s. What is the final speed of the incoming ball if it is much more massive than stationary ball.
A rotating wheel requires 2.99-s to rotate through 37.0 revolutions. What is the constant angular acceleration of the wheel
q1. a hydrogen atom has a diameter of around 1.05times10-10 m as defined by the diameter of the spherical electron
The drawing in problem 11 chapter 9 shows a person (W=584N) doing push ups. Find the normal force exerted by the floor on each hand
The polarizing direction of the first sheet is parallel to the x axis, that of the second sheet is at an angle of 30 degree counter-clockwise from the y axis, and that of the initial third sheet is at an angle of 60 degree
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