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A mirror has a focal length of 10 cm. An object is located 15 cm to the left of the mirror.
1. Draw the ray diagram for this set-up.
2. Where is the image located?
3. Is the image real or virtual?
4. What is the magnification of the image?
5. If now a lens of focal length 20 cm is placed 20 cm to the left of the mirror, find the locations of the images formed?
6. What is the total magnification for the two images?
7. Describe the images, ie are they real or virtual, upright or inverted?
Assume a car's brakes can produce an acceleration of -7 m/s2. If the car is travelling at an initial speed of 28.0m/s, what is the minimum distance necessary to stop car.
A 5 g bullet with an initial velocity of 95 m/s lodges in a block of wood and comes to rest at a distance of 6 cm. assume the bullet undergoes a constant negative acceleration; it slows at a constant rate. How much time does it take for bullet to ..
An astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars.
A proton is introduced at rest at a distance of 2 x 10^-14 from a bare nucleus of uranium, What is its kinetic energy in eV when it is expelled to infinity
What can you conclude about the resulting displacements?
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, What is the work done by friction
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
How much work must this force do to stop the wheel. An electron moving along the x axis has a position given by x = 11te-1t m, where t is in seconds. How far is an electron from the origin when it momentarily stops.
A bead with a mass of 0.050g and a charge of 20nC is free to slide on a vertical rod. At the base of the rod is a fixed 10nC charge. In equilibrium, at what height above the fixed charge does the bead rest?
When the effective interest rate is 12%, illustrate what is the market value of a 16%, 8-year, $1,000 bond that pays interest quarterly?
Take the initial direction of motion to be the positive direction. (Indicate the direction of the acceleration by the sign of your reply.)
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
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