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A 3.0-V battery with an internal resistance of 2.5 Ω is connected to a lightbulb of a resistance of 6.0 Ω. What is the voltage delivered to the lightbulb? How much electric power is delivered to the lightbulb? How much electric power is wasted in the internal resistance?
What direction is white dot on the sensor pointing
Two particles with Q1 = 50 µC and Q2 = 79 µC are initially separated by a distance of 2.4 m, What is the change in the electric potential energy
A 3.50-kg ball, moving to the right at a velocity of +2.72 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
The turbines in a hydroelectric plant are fed by water falling from a 50-m height, what is the mass flowrate of water required to power a 200-watt light bulb
A particle starts from the origin at t=0 with a veolicty of 6.0i m/s and moves in the xy plane with a constant acceleration of (-2.0i+ 4.0j). how far is it from the origin
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. find the change in the length of the solenoid
Two sound sources radiating in phase at a frequency of 485 Hz interfere such that maxima are heard at angles of 0 and 22° from a line perpendicular to that joining the two sources. Find out the separation between the two sources.
During one cycle a heat engine transfers 4 X 103 J of heat from a hot reservoir and exhausts 2.4 X 103 J to a cold reservoir. How much work is performed by this engine in one cycle
Light bulb 1 operates with a filament temperature of 2400 K, whereas light bulb 2 has a filament temperature of 1600 K. Find the ratio A1/A2 of the filament areas of the bulbs
Photons of wavelength 530 nm are incident on a metal. The most energetic electrons ejected from the metal are bent into a circular arc, compute the work function of the metal
A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 813 Hz from the wall. What is the frequency of the car horn
define the magnitude of the tension in the chain.
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