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What is the lens equation (write it down).
Imagine I give you a lens that focuses light coming from VERY far away into an image 10cm away from the lens. What is the DIOPTRIC power of this lens? Use the lens equation to figure this out. Draw a picture that shows the lens focusing light, label the distances, and show your work.
A person pushes a 12.3-kg shopping cart at a constant velocity for a distance of 16.5 m on a flat horizontal surface. calculate the work done by the pushing force
A Carnot refrigerator operating between -10.0 ?Cand + 10.0 ?C extracts heat from the cold reservoir at the rate 100J/s. What is the rate at which heat is exhausted to the hot side
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
A student eats a candy bar that may give 1.8 * 10^6 joules of energy. if the student has a mass of 60 kg, how high will he have a climb a ladder to offset completely the energy contained in the candy bar.
there is a loop held to the right of a positive point charge. i draw and label an area vector for the surface bounded
A 3 kg mass oscillates with amplitude of 15 cm and a period of 0.875 s. Find the frequency? Discover the angular frequency. Find the spring constant
By the time the cab reached the first floor, the cab is falling at 5 m/s, at that moment, when the cab's bottom is a distance d = 4 m above a spring with spring constant k = 5x105 N/m, a safety device is activated which clamps the cab against the..
a protozoan swims with a speed of 3.92 mms. how much time in s would it take this protozoan to swim directly across a
A metallic wire has a diameter of 4.12 millimeter. When the current in the wire is 8 amp, the drift velocity is 5.40 x 10-5 m/s. Determine what is the density of free electrons in the metal
Calculate the magnetic moments that are possible for the n=3 level of Hydrogen, making use of the quantization of angular momentum. You may neglect the existence of spin. Compare this with the Bohr prediction for n=3.
A ball of mass 0.45 kg is traveling with a velocity of 1.2 m/s north, 2.4 m/s east and 0.6 m/s up. What is the angular momentum of the ball with respect to the point at which the rope is attached to the post
A small metal ball with a charge of 0.45 C and a mass of 34 g (0.034 kg) enters a region where there is a magnetic field of 0.55 T. From Newton's second Law, what is the magnitude of the acceleration of the charged ball
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