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An engine does 18600 J of work and rejects 6860 J of heat into a cold reservoir whose temperature is 281 K. The smallest possible temperature of the hot reservoir is?
A flywheel turns through 22 rev as it slows from an angular speed of 2.3 rad/s to a stop. Assuming a constant angular acceleration, find the time for it to come to rest
a two metal spheres have identical size and contain charges of -6c and 14c. the spheres are touched together and then
A diver leaves the end of a 4.0-m-high diving board and strikes the water 1.3 s later, determine magnitude of velocity when she enters the water
A helium atom (mass of helium atom = 6.646 x 10-27 kg), initially at rest, emits a photon of energy 40.8 eV. What is the speed of the Helium atom after releasing this photon
If the fish starts from a distance 1.09 m from the base of the ledge over which the waterfall flows, Can the fish make this jump
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..
An 83.6-mH inductor and a 6.22-µF capacitor are connected in series with agenerator whose frequency is 355 Hz. Therms voltage across the capacitor is 2.36V. Determine the rms voltage across the inductor.
a solid plastic sphere of radius 10.0 cm has charge with uniform density throughout its volume. the electric field 9.00
Suppose you have a spring-loaded projectile launcher. Aim it straight upwards, compress the spring 1 cm, then launch a projectile from rest. You find that it rises 20 cm above the end of the spring.
A disabled tanker leaks kerosene (n = 1.20) into thePersian Gulf, creating a large slick on top of the water(n = 1.30). (a) If you are looking straight down from an airplane, while the Sun is overhead, what is the thickness at a region of the slic..
in a two-silt experiment the silt separation is 3.00 x 15-5 m. the interference pattern is recorded on a flat screen-
A fruit fly 2.16 mm long is examined with a simple magnifier. What is the focal length of the magnifier
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