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A ray of light makes an angle of 25 degrees with the normal to a plane mirror. If the mirror is turned through 6.0 degrees, making the angle of incidence 31 degrees, through what angle is the reflected ray rotated?
Suppose you hold a f=5.0 cm magnifying glass 3.0 cm from a 2.0 mm high ant. how large is the image of the ant
In a laboratory experiment, one end of a horizontal string is tied to a support while the other end passes over a frictionless pulley and is tied to a 1.9kg sphere, What is the diameter of the sphere
Two forces, of magnitude F1 = 80.0 N and F2 = 45.0 N, act in opposite directions on a block which sits atop a frictionless surface. Find the work W1 done on the block by the force of magnitude F1= 80.0 N as the block moves from xi = -1.00 cm to xf =..
How does the decrease in gravitational potential energy of a falling ball compare to its increase in kinetic energy.
A diving board oscillates with simple harmonic motion of frequency 3.23 cycles per second. What is the maximum amplitude with which the end of the board could vibrate in order that a pebble placed there not lose contact with the board during the o..
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere.
A car travels due east with a speed of 44.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. Find the velocity of the rain
A 16.8 kg block is dragged over a rough, horizontal surface by a constant force of 123 N acting at an angle of angle 34.9 above the horizontal. Find the magnitude of the work done by the force of friction
What is Lagrangian for the system
Find the distance between the centers of the spheres.
The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine delivers 125 kW when the shaft is turning at 1500 rev/min. Determine the minimum thickness of the shaft's wall
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
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