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A volltage drop of 0.00039 V is measured across a 1.2 m long piece of copper wire when 10 mA of current passes through it.
a. What is the resistivity of copper?
b. What is the radius of the wire?
c. What is the power dissipated in the wire?
Three blocks, each of mass 9 kg are on a frictionless table. A hand pushes on the left most box (A) such that the three boxes accelerate in the positive horizontal direction, What is the magnitude of the force on block A from the hand
An infinitely long line of charge has a linear charge density of 8.00×10-12 C/m. A proton is at distance 16-cm from the line and is moving directly toward the line with speed 1200 m/s.
A uniform electric field has a magnitude 330 N/C and is directed along the +y-axis. what is the change in potential energy for this charge
A professor's office door is 0.90 wide, 2.00 high, 4.00 thick; has a mass of 30, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts the torqu..
What is the direction of the force that the unknown charge exerts on the charge of magnitude 0.580uC?
2 radio antennas are 100m apart along a north-south line. Theybroadcast identical radio waves at a frequency of3.0MHz, what is the phase difference between the waves at this point
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.75 x 1010 m. presume that sun radiates uniformly in all directions.
A person doing a chin-up weighs 655 N exclusive of the arms. During first 15 cm of the lift, each arm exerts an upward force of 355N on the torso. If the upward movement starts from rest, what is the person's velocity at this point.
The mass of the barge is 9000 kg, and its acceleration is 0.15 m/s2 down the canal. Illustrate what are the magnitude and the direction of the force on the barge from the water?
What is the total mass of the reagents used in the combustion throughout the 30 days . The ball makes 17 oscillations in 16 seconds. What is it the mass of the ball.
What is amplitude of the electric component of the signal
Given that Neptune is about 30 AU from the sun, how many years does it take to complete an orbit around the Sun? Using this information
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