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A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. The converging lens has a focal length of 14.5 cm. The diverging lens is of unknown focal length. An object is placed 17.2 cm in front of the converging lens; the final image is virtual and is formed 11.4 cm before the diverging lens. What is the focal length of the diverging lens?
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.5rev/s. find the frequency of the wheel after the clay sticks to it
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
A bicycle slows down uniformly from v0 = 8.40 m/s to rest over a distance of 115m. Each wheel and tire has an overall diameter of 68.0 cm. determine the angular acceleration of the wheel
A constant force is applied to an object, causing the object to accelerate at 6 m/s^2?, What will the acceleration be if the force is halved
Conclude the magnitude and directional angle
Two passenger trains A and B, each 220 m long, pass a 50 m long railroad platform in Winnepeg. The trains are moving in opposite directions at equal speeds of 0.670c with respect to the ground, What is the difference in arrival times
At this time it has reached a height of 420 metres above launch pad and attained an upward velocity of 50 ms-1. From this time on, the rocket has constant upward acceleration -10 ms-2 (due to the effect of gravity alone).
Compute the change in entropy of 1 gram of water as it goes from solid ice at 0 celsius to water vapor at 100 Celsuis
Two blocks with masses M_1 and M_2 hang one under the other. For this problem, take the positive direction to be upward, find the tension in the lower rope
how far did the last car travel before momentarily coming to a rest. A 3 kg block accelerates at a rate twice that of a 6 kg block. Is the net force acting on the 3kg block twice as large as that acting on 6kg block.
At a given instant, the blood pressure in the heart is 1.8 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery
Assume that we suddenly discovered that all these years we would be wrong about the distance from Earth to the Sun, and it is actually 10 percent greater than we would think. How would that affect our approximation of the distance to the Andromeda..
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