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Shaving/make-up mirrors typically have one flat and one concave (magnifying) surface. You find that you can project a magnified image of a light bulb onto the wall of your bathroom if you hold the mirror 1.53 m from the bulb and 3.52 m from the wall. What is the magnification of the image? What is the focal length of the mirror?
A 89 kg box rests on a level surface as shown in Figure 1. The coefficient of static friction, µS = 1.3 and the coefficient of kinetic friction, µK = 0.9. find the magnitude of Gravity on the box from the Earth
A proton moves at 1.0x10^7 m/s perpendicularly to a uniform magnetic field. Determine the magnitude and direction of the field
define the speed with which the cart reaches positions 3, 2, and 1 (in that order). Neglect friction. Let g = 9.81 m/s2.
Determine an average acceleration in coordinates with x-axis
A capacitor C is charged to an initial potential of 60.0 V, with an initial charge of Q0. It is in a circuit with a switch, Calculate the energy in the circuit after a time of 11 periods
A solid disk of mass m1 = 9.5 kg and radius R = 0.18 m is rotating with a constant angular velocity of ω = 39 rad/s. What average torque was exerted on the rod by the disk
A person with a black belt in karate has a fist that has a mass of 0.70 kg. What is the magnitude of the average net force
When people sleep, their metabolic rate is about 2.6 10-4 C/(s • kg). How many Calories does an 83 kg person metabolize though getting a good night's sleep of 9.0 hours.
A stone has a mass of 6.00 x10-3 kg and is wedged into the tread of an automobile tire. The coefficient of static friction between the stone and each side of the tread channel is 0.84.
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
A uniform rod of length 0.790 m and mass 14.50 kg is balanced on a sharp edge at 0.650 m from the left end. At the left end hangs a mass of 45-kg and the right end hangs an unknown mass so that the whole assembly is in equilibrium.
Find A (Vector potential of the Magnetic dipole) on a diagonal of a square side S and of current I at a distance Sqrt(2)S from the corner.
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