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Six identical bulbs are connected in series across a 120-Volt source. What is the voltage across each bulb? If the current is 0.55 A, what is the resistance of each bulb and what is the power dissipated in each bulb?
Assume that the vapor is an ideal gas (not a good approximation). a) How much work is done on the ethanol? b) What is the change in internal energy of the ethanol?
A 12.0 Volt battery remains connected to a parallel plate capacitor with a plate area of 0.354 m2 and a plate separation of 4.24 millimeter. Evaluate what is the charge on the capacitor
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position?
a car starts from the bottom of a hill with a slope of 10 degrees and travels with a constant velocity of 20m/s when its engine fails. Calculate the total time the car is in motion
A dentist wants a small mirror that, when 3.00 cm from a tooth, will produce a 4.5X upright image. What must its radius of curvature be
A 40 cm telescope has a focal ratio of f/10. a) What is the light-gathering power of this telescope relative to that of a single human eye?
The block is spun at 60 rpm, then the temperature of the rod is slowly increased. When the wax melts, the block slides out to the end of the rod. Determine the final angular velocity? Give your answer in rpm.
The current through a 686 ? resistor is 190 mA. To the nearest volt, what is the potential difference across the resistor
A mass on a spring has an angular oscillation frequency of 2.56rad/s. The spring constant is 27.2 N/m, and the system's kinetic energy is 4.47J when t = 1.56 s. Suppose that φ = 0.00. What is the oscillation amplitude?
Inside a sealed wooden box of mass M there hangs, by a thread of negligible mass, a lead pellet also of mass M. What is the acceleration of the center of mass of the system of box
A PuBe source has a neutron activity of 1.6 X 105 Bq. The neutrons are produced by the 9Be(a, n)12C reaction with an effective cross section of 90 mb and thickness of 3.2 cm. What is the probability of an incident alpha particle interacting with a 9B..
A pendulum consists of a compact .40 kilogram bob attached to a string of length 1.6 m. the maximum angle of the pendulum with the vertical is 5.73o. Find what the mass m
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