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The focal lengths of the objective and the eyepiece in a microscope are 0.29 and 2.5 cm. An object is placed 0.3 cm from the objective. the image of this object is viewed with the eyepiece adjusted for minimum eyestrain, what is the distance between the objective and the eyepiece?
A wind is blowing straight from north to south at an unknown speed. When you hold up a piece of thread you can see that the wind stretches it out so that it points from your hand to the south. What is the speed of the wind relative to the ground
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, & find the radius r of the tyre.
A billiard ball is moving in the x-direction at 30 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 50.0 cm/s, and the second ball stops. In what final direction d..
Find out the magnitude of its average acceleration between those points. Find the direction of its average acceleration between those points.
A uniform disk turns at 4.3 around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk.
The magnitude of the acceleration due to gravity
A 30 kg box is pushed by a horizontal force of 900. N as it slides up a plane inclined at an angle of 30 degrees with the horizontal. The coefficient of friction between box and plane is 0.20. How far-off will the box travel along the plane in 5.0..
The box has a mass of 31.0 kg, and the coefficient of kinetic friction between the box and floor is 0.530. The acceleration of gravity is 9.81 m/s2. Illustrate what is the acceleration of the box?
Find out the maximum height that the rocket reaches (neglecting air resistance) when the fuel is exhausted.
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, and the outside temperature is -18° C. What is the increase in the entropy of the universe that this heat loss produces?
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. The aluminum is 3 mm thick.
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 60cm in length, What is the total length of wire you will need to meet these specifications
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