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What is the resistance of a lightbulb that has a rating of115 W? Assume the lightbulb is designed for use in an AC circuit with Vrms =120 V. Hint: In a circuit analysis, a lightbulb can betreated as a resistor.
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, Calculate the probable percent error in the length
Body fat has an energy content of about 38,000 Joules per gram. Suppose your weight has been constant, how much weight will you have gained
For no apparent reason, a poodle is running at a constant speed of 3.40 m/s in a circle with radius 2.8m. Let v1 be velocity vector at time t1, and let v2 be the velocity vector at time t2.
One hundred k mol of a gas containing 94.4 mole% methane, 3.40% ethane, 0.60% propane, and 0.50 percent butane is to be burned with 17% excess air. Calculate the required molar flow rate of the air.
A police car at rest, passed by a speeder traveling at aconstant 120 km/h, takes off in hot pursuit. find the speed of the police car at the overtaking point
A bat emits short pulses of sound at a frequency of 1.60×105 Hz. As the bat swoops toward a flat wall at speed 30.0 m/s, What is the frequency of sound incident on the wall
A block of mass m1 on a smooth, horizontal surface is connected to a ball of mass m2 by a lightweight cord over a lightweight , frictionless pulley , Determine the normal force exerted by the table on the block
An electron (mass: 9.11x10-31 kg; charge:1.60x10-19 C) moves from location A to location B solely under the influence of conservative forces, what is the speed of the electron at this point
Armed with highly sensitive detection equipment, you are in the front of a railroad car that is accelerating forward. Do you find the light to be red-shifted (lowered in frequency), blue-shifted (increase in frequency), or neither
A cable passes over a pulley. The cable does not slip on the pulley, and the tension in the cable is not the same on opposite sides of the pulley. determine its angular acceleration
Two forces are acting on a 0.250-kg hockey puck as it slides along the ice. what will be the magnitude and direction of the puck\'s acceleration
A Cadillac of mass2240 kg going east collides with a Geo of mass1250 kg headed north at 25 km/h on a level highway. How fast was the Cadillac moving before the collision
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