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The 3.0-m-long pipe in the figure is closed at the top end. It is slowly pushed straight down into the water until the top end of the pipe is level with the water's surface.
What is the length L of the trapped volume of air?
what resistance would have to be connected in series with a 3V lamp in a 28 V circuit when the operating current of the lamp is .5 A
on a frictionless horizontal air table puck a with mass 0.250 kg is moving toward puck b with mass 0.370 kg which is
The work needed to remove an electron from the surface of sodium is 2.3 eV. How big maximal velocity will have electrons if the surface of sodium will be illuminated with ultraviolet light wave length
The dimensions of a parallel-plate capacitor are all increased by afactor of five. By what factor doesthe capacitance change? (The dimensions refer to the length and width of a plate and the spacing between the plates.)
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. In level flight the air speed over the top of the wings is 63.9 m/s, while the air speed beneath the wings is 51.5 m/s. What is the weight of the plane?
A laser emits a light beam with a power of 5 mW. How many photons per second does this laser emit
A constant horizontal force Fa pushes a 2 kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. It gives package's x and y velocity components versus time t. What is the magnitude of Fa.
A group of explorers in Antarctica can obtain water only by melting ice. They wish to make 4 cups of coffee, determine the amount of heat required and the amount of power required
Two equally charged spheres are located 2 cm away from each other. what is the magnitude of the charge on each of sphere
a beam of monochromatic light is incident on a single slit of width 0.620 mm. a diffraction pattern forms on a wall
A 47.0 g golf ball is driven from the tee with an initial speed of 56.0 m/s and rises to a height of 26.0 m. obtain the kinetic energy of the ball at its highest point
charge of uniform surface density 0.20ncm2 is distributed over the entire xy plane. determine the magnitude of the
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