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A sperical mirror is polished on both sides. When the convex side is used as a mirror, the magnification is +1/8. What is the magnification when the concave side is used as a mirror, the object remaining the same distance from the mirror?
An electron and a positron, each moving at 3.0 x 10^5m/s, collide head on, disappear, Determine the energy and momentum of each photon
a uniform cylindrical turntable of radius 2.00 m and mass 26.8 kg rotates counterclockwise in a horizontal plane with
a wire lying in the plane of the page carries a current directed toward the bottom of the page. What path will the electron follow
The fastest pitched baseball was clocked at 46 m/s. If the pitcher exerted his force (assumed to be horizontal and constant) over a distance of 1m, and a baseball has a mass of 145 g.
Suppose that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385 torr. If all the oxygen as is removed from the mixture by reaction with phosphorus
The base of an aluminum block, which is fixed in place, measures 90 cm by 90 cm. The shear modulus of aluminum is
A cylinder is rolling along the ground without the slipping at 7m/s. It comes to a hill and begins going up. Assume no losses to friction, how high vertically would it go before it stops?
A container is filled to the brim with 1.6 L of mercury at 20°C. Determine the linear expansion coefficient of the material
Two point charges have a value of 30 ?C each and are 4 cm apart. What is electric field at the midpoint between the two charges
A 45.0kg girl is standing on a 170 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.53m/s relative to the plank.
Two 2.00 cm diameter disks spaced 2.239 mm apart from a parallel plate capacitor. The electric field between the disks is 445,140.438 V/m. What was the electron's speed as it left the negative plate
A student on a piano stool rotates freely with an angular speed of 3.05rev/s . The student holds a 1.45kg mass in each outstretched arm, 0.779m from the axis of rotation. Calculate the final kinetic energy of the system
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