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A meter stick lies along the optical axis of a convex mirror of focal length -39 cm, with its nearest end 67 cm from the mirror. How long is the image of the meter stick?
If a negative charge is initially at rest in an electric field, will it move toward a region of higher potential or lower potential? What about a postive charge? How does the potential energy of teh charge change in each instance?
an inventor has a rough design for a light fixture with a dimmer knob. the fixture contains a 50-microf capacitor an
A racing dog is initially running at 18.0 , but is slowing down. By what fraction has its kinetic energy been reduced
Dan hits a hockey puck, giving it an initial velocity of 3.0m/s. If the coefficient of kinetic friction between ice and puck is0.020, How far will the puck slide before stopping
An antiproton (same properties as a proton except that q = -e) is moving in the combined electric and magnetic fields of the figure below, in which 1050 V/m is the magnitude of the electric field (directed down) and 466 m/s is the antiproton's speed ..
A dab of mud (mass 0.1 kg, and sitting 0.25 m from the center) flies off a horizontal spinning wheel when the wheel takes 1 s to complete one circuit. How large is the friction force between the mud and the wheel
A supertanker filled with oil has a total mass of 6.1 x 108 kg. how far below the water level is the bottom of the tanker
a mass on a string of unknown length oscillates as a pendulum with a period of 2.5 s. parts a to d are independent
A puck with mass m = 0.14kg slides along a frictionless horizontal surface at v = 5.9 m/s. It hits and sticks to the free end of a spring with k = 15 N/m. Find the period of the subsequent simple harmonic motion
A wave travels on a string at 60m/s. A second string of 20 percent greater linear density has the same tension applied as in the first string. What will be the resulting wave speed in the second string?
Calculate the energy of the electron in the ground state of double ionized lithium, which has an atomic number Z = 3
In a conservative system how do they relate to each other? Since the subject here is work, how are work and energy related
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