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Some of the first "microscopes" were really single-lens magnifying glasses made by Leeuwenhoek. These devices had magnifications as high as 200. Assume that these were made from a glass (n = 1.5) lens with two surfaces of equal curvature.
a) Find R.
b) Estimate the maximum diameter of these lenses.
An 250 kg air hockey puck is tied to a peg. The puck is given a push and moves around the peg at a constant speed in a circle. What is the acceleration of the puck
A certain freely falling object requires 1.6s to travel the last 38.00m before it hits the ground. From what height above the ground did it fall.
A copper washer is to be fit in place over a steel bolt. Both pieces of metal are at 29.7°C. to what temperature must the washer be raised so it will fit over the bolt
The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m. What is the speed of the lightest star
Two charges repel each other with a force of 10-6 Nwhen they are 10 cm apart. Find the forces between the samecharges when they are 2 cm and 20 cm apart
a roller coaster had an intial velocity of 80 ms and abruptly came to a stop at the end of the ride. it took 10 seconds
An airplane flies in a loop (a circlar path in a verticalplane) of radius 150m. The pilot's head always points toward thecenter of the loop. What is the apparent weight of the pilot at this point
You observe that a falling stone takes 0.21 seconds to pass a window that is 1.6 meters tall. What is the speed of the stone as it reaches the bottom of the window
While john is travelling along an interstate highway, he notices a 160 mile marker as he passes through town. Later John passes another mile marker, 119.
Darius the dare devil plans to launch his rocket carat the top a ramp inclined at 20.0 degrees to the horizontal over apit of fire 20 m in diameter, unfortunately the rocket motor failsat the foot of the ramp, when his speed is 12.6 m/s.
A compound microscope in which the objective and eyepiece are 30.2 cm apart uses an objective lens with fobj = 1.0 cm, What is the magnification of the microscope
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.72 x 105 N. What is the work done on the jet by the catapult
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