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An object of interest is 3 mm from an objective for a compound microscope with a lens power of +250 D. If the total magnification of object is -100x what is the magnifying power of the eyepiece?
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
A mass rests on top of the piston. The initial temperature of the system is 305 K and the pressure of the gas is held constant at 137 kPa. The temperature is now increased until the height of the piston rises from 23.4 cm to 27.0 cm. What is the f..
If a bullet is fired vertically upwards with the speed calculated in (b), what is the maximum height that the bullet can reach.
A Carnot engine performs work at the rate of 380 kW when using 730 kcal of heat per second. If the temperature of the heat source is 560 C, at what temperature is the waste heat exhausted.
If the system is stopped, how much hanging mass would be required to bring the rotating mass to the same position.
What is the speed of the two carts at the moment while their speeds are equal.
Illustrates the difference between acceleration and velocity
A stone is thrown upward with an inital speed of 20 m/s. What is its acceleration at the higest point of its trajectory, Find its veolocit
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1020 Hz. The bird-watcher, however, hears a frequency of 1060 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
The motion of a 25.0 kg mass on the end of a string is uniform circular motion. The magnitude of the tangential velocity of the mass is 5.0 m/s, Calculate the angular momentum of the mass
A jet makes a landing traveling due east with a speed of 115 m/s. If the jet comes to rest in 13.0s, what are the magnitude and direction of its average acceleration.
Use the simulation in the cannon interactive in this section to answer the following questions. (a) Does cannonball's horizontal velocity change as it moves through the air? (b) Does its vertical velocity change? (c) If you enhance the cannonball's h..
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