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An astronomical telescope is designed with an overall magnification of 80x. The objective has a focal length of 98.0 cm.
What should be the focal length of the eyepiece?
(in cm)
How far should the eyepiece be from the objective?
What's the definition of quantum physics, in layman's terms?
A wooden raft has a mass of 76 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
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A diver springs upward from a board that is three meters above the water. Determine her initial velocity, both magnitude and direction
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
A 120-V motor has mechanical power output of 3.00 hp. It is 88.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
Each surface exerts a force on the bottle that is perpendicular to the surface. What is the magnitude of each of these forces.
Water flowing in a horizontal pipe is at a pressure of 1.55 105 Pa at a point where its cross-sectional area is 6.00 m2. Find the water's speed in the wider pipe
An electron traveling horizontally to the right enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it enters the electric field? A. to the left B. to the ri..
As you eat your way through a bag of chocolate chip cookies, you observe that each cookie is a circular disk with a diameter of 8.50 ± 0.02 \rm cm, Find the ratio of the diameter to the thickness
A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. What is the maximum angle away from the lowest position the pendulum will reach
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