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The eyepiece of a compound microscope has a focal length of 3.10cm , and the objective lens has f = 0.760cm.
A. If an object is placed 0.820cm from the objective lens, calculate the distance between the lenses when the microscope is adjusted for a relaxed eye.
B. Calculate the total magnification.
To find out if the ball clears the crossbar, what is its height with respect to the crossbar when it reaches the plane of the crossbar?
A power line 50km long has a total resistance of 0.60ohm, What percentage of the original energy is lost when the transformer is not used
An aquarium contains a 5 - cm layer of water ( n = 1.333) floating on top of carbon tetrachloride ( n = 1.461) what is the angle of refraction into the air
A charging cell phone battery requires a current of 1.60 A and power is dissipated in the battery at 7.52 W. Determine the current drawn from the wall by the charger
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
A jet aircraft is flying at constant altitude. At t1 = 0 it has components of velocity vx = 150 m/s and vy = 130 m/s, What is the acceleration's magnitude and direction during this time interval
A rocket of total mass 3180-kg is travelling in outer space with a velocity of 115 m/s toward the Sun.
directed into the plane of the computer screen as shown in the figure. Identify the magnitude and direction of the resultant magnetic field at P.
Electron acquires 5x10^-16 kinetic energy when it is accelerated by an electric field from Plate A to Plate B, what is the potential difference Vba between the two plates
The outside mirror on the passenger side of a car is convex and has a focal length of -7.7 m. Relative to this mirror, Find the image distance of the truck.
A fisherman wants to know the mass of a trout he just caught but does not have scales. What is the mass of the fish
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
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