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A spherical mirror is polished on both sides. When used as a convex mirror, the magnification is +1/5. What is the magnification when used as a concave mirror, the object remaining the same distance from the mirror? Give your answer to three significant figures.
An green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. What is magnitude of the linear acceleration of the hoop
0.5 kg of ice slowly melts. The latent heat of fusion is 80 kcal/kg. By how much does the entropy of the ice change
A circuit similar to the one you will b e measuring has a current of 0.1 A flowing when the voltage is 2. 5 V, What color code does the res istor probably have
peg is located a distance h directly below the point of attachment of the cord. If h = 0.90 L, illustrate what will be the speed of the ball when it reaches the top of its circular path about the peg?
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 4.4 when the flywheel is rotating at 1.4×104 revolutions per minute. What is the moment of inertia of the flywheel
a sodium atom emits a photon with wavelength 818 nm shortly after being struck by an electron
A soccer ball of mass 400g is rolling at a speed of 8m/s along a flat horizontal surface. Find the rotational kinetic energy of the ball
apollo orbit around the moon was adjusted to an average orbit of 111km radius of the moon is 1785 km and the mass of the moon is 7.3 *10"(22) kg. at what velocity did it orbit the moon
A potential difference of 13 V is found to produce a current of 0.45 A in a 2.7 m length of wire, Find the resistance and resistivity of the wire
Two strong magnets on opposite sides of a small table are shown.The long-range attractive force between the magnets keeps the lowermagnet in place. Suppose the weight of the table is 28.6 N,the weight of each magnet is 3.81 N, and the magnetic for..
A balloon is filled with 5.00 liters of helium at a pressure of 1.20 atm and a temperature of 27.0 degrees C. Find the mass of the helium
First-order Bragg diffraction is observed at 23.0 degrees relative to the crystal surface, with spacing between atoms of 0.26nm, At what angle will second order be observed
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