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A Carnot engine operates between 254°C and 117°C, absorbing 5.58 x 104 J per cycle at the higher temperature. (a) What is the efficiency of the engine? (b) How much work per cycle is this engine capable of performing?
Two charged spheres are 8.45cm apart. They are moved, and the force on each of them is found to have been tripled. How far apart are they now.
An insulating membrane separates conducting fluids inside and outside an unmyelinated axon, a type of nerve fiber. Find the surface area and capacitance of the axon
Green light (? = 546 nm) strikes a single slit at normal incidence. What width slit will produce a central maximum
Find out the radial acceleration of the ball during its circular motion.
A 45.0 kg girl is standing on a 152 kg plank. The plank, originally at rest, isfree to slide on a frozen lake, which is a flat, frictionlesssurface. What is her velocity relative to the surface of ice
at what range of speeds can a car safely make the curve.
The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
If a bullet is fired vertically upwards with the speed calculated in (b), what is the maximum height that the bullet can reach.
An electron is accelerated through a potential difference of 3.00 V before colliding with a metal target. What minimum-wavelength light can such an electron emit
You have a concave spherical mirror with a 13.3-cm radius of curvature. You place an object on the mirror\'s axis, How far is the object's image from the mirror
A wheel 90.0 cm in diameter accelerates uniformly from 235 rpm to 385 rpm in 6s. How far will a point on the edge of the wheel have travelled in this time.
Two metal balls are hung from strings. The first ball, 0.1 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1.56 m/s. What is the mass of the second ball
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