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The eyepiece of a compound microscope has a focal length of 2.70 centimeter, and the objective lens has f = 0.740 centimeter. An object is located 0.790 centimeter from the objective lens. Suppose a normal eye and that the final image is at infinity. Find the distance between the lenses when the microscope is adjusted for a relaxed eye. Determine the total magnification.
a proton moving at a constant velocity of 106 ms enters a region of uniform magnetic field perpendicular to its
A piston, A, as shown below, has a diameter of 0.54cm. A second piston, B has a diameter of 3.7 cm. find the force, F, necessary to support the 500N weight in the absence of friction.
A 1200 kg car rounds a corner of radius r = 45m. If the coefficient of static friction between the tires, what is the greatest speed the car can have in the corner without skidding
If the rope tension is 120 N, and if the rope does 2500 J of work on the box, what angle theta does the rope make with the horizontal
Which of the following describes an object with nonzero net force acting on it?
anbsp32.5-kg crate rests on a horizontal floor and anbsp60.4-kg person is standing on the crate. determine the
A helium-filled balloon escapes a child's hand at sea level and 21.1 deg C. how will its volume compare to that at sea level
A 575 N woman climbs a staircase that rises at 54 degrees above the horizontal and is 4.10 m long. How much work has gravity done on her as she climbed the stairs
A loop antenna of area 2.00 cm2 and resistance 5.21 ?? is perpendicular to a uniform magnetic field of magnitude 17.0 ?T. How much thermal energy is produced in the loop by the change in field
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 130 m below. How much time passes before it hears an echo
In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction
A copper rod has a length of 1.6 m and a cross-sectional area of 3.9 10-4 m2. What is the mass of ice per second that melts
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