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The resistance of a silver wire is to be calibrated for low-temperature measurements. A silver wire with a resistance of 1.15 ? at 20.0 °C is immersed in liquid nitrogen at 77.0 K (-196 °C). If the temperature response of the silver wire is linear, what is the expected resistance of the silver wire at -196 °C? (?silver = 3.80×10-3/°C)
What is angular width of the beam
A 1.80Kg brick is sliding next to on a rough horizontal surface at 13.5m/s .If the brick stops in 4.80, how much mechanical energy is lost.
A force with a magnitude of 452N is used to bring an object with a mass of 56.0 kg moving at a velocity of 155m/s. How long will it take to bring the object to a full stop.
At what distance along the central axis of a ring of radius 1.8 cm and uniform charge 66 C is the magnitude of the electric field maximum.
Water at a pressure of 3.4 atm at street level flows into an office building at a speed of 0.5 m/s through a pipe 7.00cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 28m above.
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
where the woman falls down from a great height, and comes to a full stop. For which case is the change in the woman's momentum the largest? For which case is the Impulse the largest?
A ball is held on an incline at the height of 72 cm. it is then released so that the ball rolls down the incline. At the bottom of the incline there is a loop where the ball rolls around in. If the loop is 62 cm high at its highest point what is the ..
A charge of 6.53mC is placed at each corner of a square .470 m on a side. Determine the magnitude of the force on each charge. Determine the direction of the force on each charge.
What is an acceleration of two falling sky divers (mass 100.0 kg including parachute) when the upward force of air resistance is equivalent to one-fourth of their weight. How fast would the father be moving.
A charge of -0.62 m/C with an unknown mass hangs vertically from a string. A uniform electric field, which runs parallel to the ground (in the + x direction) is then turned on.
A 87 g arrow is fired from a bow whose string exerts an average force of 105 N on the arrow over a distance of 76 cm. Illustrate what is the speed of the arrow as it leaves the bow?
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