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A simple camera telephoto lens consists of two individual lenses. The objective has a focal length f1 = + 37.0 cm. Exactly 35.0 cm behind this lens there is a concave lens with a focal length of f2 = - 10.0 cm. The object to be photographed is 4.0 m in front of the objective. What is the magnification of the lens combination?
Show that the Earth's orbit will be a parabola (and so the Earth will escape to infinity) and If the Sun's mass suddenly doubles, what will be the Earth's orbital period?
A small package rests on the horizontal dashboard of a car. If ?s = 0.302, what is the minimum acceleration of the car
q1. 0.55 kg block of ice is sliding through you on the very slippery floor at 3.6 ms. as it goes by you give it a kick
Two point charges are located as shown in the figure, with charge q1 = +3.5 C at x = ?3.0 m, y = 0, How much work must be done on the electron to move it to the origin
A 5C charge moves with velocity v = 10i + 3 j - 7 k m/sec in magnetic field B = 5i+ 13j - 1k tesla. find directions of magnetic force on the moving charge
What mass of water at 29.0°C added to a Styrofoam cup containing two 60.0 g ice cubes from a freezer at -16.0°C will result in a final temperature of 5.00°C for the drink? Explain it.
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.11 m2 and whose thickness is 3 mm. what is the percentage lost by the window
Two identical 0.11 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, how far did the center of mass of the real system move
Consider an LC circuit with L = 13 mH and C = 2285 pF. At what frequency is the reactance of the inductor equal to the reactance of the capacitor
Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.033 m in the same way as neutrons and protons are packed together in the nucleus of an atom. Approximately how many neutrons would fit inside the ball
A machinist starts with three identical square plates but cuts one corner from one of them, two corners from the second, and three corners from the third. Rank the 3 plates according to the x coordinate of their center of mass, from smallest to large..
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 3.30 m/s. find the distance the sled moves before it stops
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