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1. A negative lens has a focal length of -10 cm. An object is located 20 cm from the lens.
A) How far from the lens is the image?
B) Is the image real or virtual?
C) Is the image upright or inverted?
D) Is the image enlarged or reduced?
E) Trace three rays from the top of the object to confirm your results.
Photographic cameras on spy satellites supposedly can read the license plate of a car on the ground. How large is the diameter of the camera required for such a feat
A charge of +1.80 mC is located at x = 0, y = 0 and a charge of -4.09 mC is located at x = 0, y = 3.16 m. What is the electric potential due to these charges at a point with coordinates x = 4.09 m, y = 0.
You have two capacitors, one with capacitance 12.3 × 10-6 F and the other of unknown capacitance. obtain its capacitance
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
An electron is confined in a 2.00nm box. What are it's three lowest energy levels? What wavelength photon would be emitted during an n=3 to n=1 transition
A person of mass 72 stands at the center of a rotating merry-go-round platform of radius 3.40 and moment of inertia 950. The platform rotates without friction with the angular velocity 0.95. The person walks radially to the edge of the platform.
You roll a ball along the floor for your dog to chase after and catch it. You roll the ball with an initial speed of 15 m/s, how far does the ball go before your dog catches it
A 1500kg car skids to a halt on a wet road where coefficient of friction = 0.46. How fast was car traveling if it leaves 68m long skid marks.
An electron confined in a one-dimensional box is observed, at different times, to have energies of 20 , 45 , and 80. What is the length of the box
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 15.0 cm mark, the stick is found to balance at the 42.0cm mark. What is the mass of the meter stick
Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.6 m/s2. Identify the force.
What the max speed of the oscillator?
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