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An insect that is 5.30 mm long is placed 8.9 cm from a converging lens with a focal length of 12.0 cm.
(a) What is the position of the image?
(b) What is the size of the image?
(c) What is the angular magnification if the lens is close to the eye? (Assume the user's near point to be 25 cm.)
A passenger train is travelling at 32 m/s when the engineer sees a freight train 384 m ahead of his train travelling in the same direction on the same track. The freight train is moving at a speed of 5.7 m/s.
A 280-kg cylindrical piece of concrete pipe 1.0 m in diameter, 1.3 m long, and 3 cm thick is rolling toward you at a speed of 5 m/s. What is its approximate rotational angular momentum
What is the maximum cost of the solar panel if it must pay for itself in two years of operation averaging 9.00 hours per day? Assume that it earns money at the rate of 7.00¢ per kilowatt-hour
In a Compton scattering experiment, an x-ray photon scatters through an angle of 18.0° from a free electron that is initially at rest. Calculate the angle through which the electron scatters
A person sitting quietly in a room on a winter day may lose heat primarily by radiation from the outer surface of her clothes to the walls of the room. find the temperature of the outer surface of the clothes
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.27 kg, and the wedge has a mass of 5.31 kg. what is the velocity of the wedge after the collision
Calculate the momentum pi at the end of the plane in terms of the measured quantities x, y, L, and m. how far will it coast back up the ramp before changing directions
The masses and coordinates of three spheres are as follows: 14 kg, x = 1.25 m, y = 1.25 m; 38 kg, x = -2.50 m, y = -2.00 m; 62 kg, x = 0.00 m, y= -0.50 m. What is the magnitude of the gravitational force
A transverse wave is propagation on water surface and is described by the equation y=0,01sin[(1,0)x + (30) t ], find the magnitude of velocity of the particle's displacement
An infinite plane current sheet coincides with the xy plane. The surface current density is K'=K' y-hat where K'=const, Find the force per unit length on the wire
A balloon is filled with 5.45 liters of helium at a pressure of 1.25 atm and a temperature of 29.5° C. Find the mass of the helium
Some bacteria are propelled by biological motors that spin hair-like flagella. How long does it take the motor to make one revolution
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