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Nine tree lights are connected in parallel across a 120-V potential difference. The cord to the wall socket carries a current of 0.44 A.
Determine the resistance of one of the bulbs.
What would the current be if the bulbs were connected in series?
A mechanic jacks a car up to an angle of 6.0 degree to change the front tires. The car is 2.9 meter long and has a mass of1130 kilogram. Find the torque exerted by the car around the back wheels
A parallel-plate capacitor has a plate separation of 5.0 cm. Ifthepotential difference between the plates is 2000 V, with the top plate at the higherpotential, what is the electric field between the plates?
What is the ratio of the magnitude of the current in wire 3 to that in wire 2? What is the ratio of the net force per unit length experienced by wire 3 to that of wire 2?
An object is placed 10 m before a convex lens with focal length 5.3 m . Another convex lens is placed 6.84 m behind the first lens with a focal length 6.2 m. At what distance is the second image from the second lens?
Let the mass of the star be 1.98e30 kilogram and the power be 8.52e27 Watt. The universal gravitational constant is 6.6726e-11 Nm^2/kg^2 and speed of light is 3e8 m/s. find what is the radius of this particle is micrometer
To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceleration. What are your reaction time
The velocity v of waves on a vibrating string depends on the tension T in the string and the mass per unit length λ of the string. Derive an expression for v by using the dimensional analysis method
What is the speed of an electron that is released from rest andaccelerated through a potential difference of 160 volts?
question you are traveling in a spaceship at a speed of 0.83c away from earth. you send a laser beam toward earth
When a3.0µF capacitor is connected to a generator whose rms output is29V, the current in the circuit is observed to be0.30A. What is the frequency of the source
A converging lens (f 1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 =−28.0 cm). An object is placed to the left of the converging lens, and the final image produced with the two-lens combination lies22.2 cm to the left of the ..
A surveyor measures the distance across a straight river by the following method: Starting directly across from a tree on the opposite bank, he walks x = 102 m along the riverbank to establish a baseline. How wide is the river
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