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two copper wires of the same gauge, one has a length L and the other twice that. If the first wire has a resistance R, what is the resistance of the second wire? What can be said of the relationship between resistance and length.
A 151 kg rocket moving radially outward from Earth has a speed of 5.03 km/s when its engine shuts off 226 km above Earth's surface. (a) Assume negligible air drag; find the rocket's kinetic energy when the rocket is 535 km above Earth's surface. (b) ..
A wooden block of mass 2kg, initially stationary is dragged by a force F with magnitude 20 N along a frictionless incline with an angle 0=30 degrees, What is the wooden block acceleration
a wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite
What is the magnitude of the electric force between a proton and an electron when they are at a distance of 1.91 angstrom from each other
Two streams of air, one at 1 bar, 27C and velocity of 30 m/s and the other at 5 bar, 227C and 50 m/s velocity, Find the velocity of the stream issuing out of the nozzle
The resistance of a silver wire is to be calibrated for low-temperature measurements. A silver wire with a resistance of 1.15, what is the expected resistance of the silver wire at -196 °C
A car is traveling 80 km/hr in a school zone. A police car starts from rest just as the speeder passes it and accelerates at a constant rate of 8 km/hr·s. Eluciadte when does the police car catch the speeding car?
Assuming that vertical = 0 degrees, the angle of the pendulum oscillates between the maximum amplitudes: -theta max and theta max. What is the angle of the pendulum at which the gravitational potential energy is minimum
What is the number of turns on the coil and what is the magnetic field at the mean radius?
An object of mass m = 0.33 kg sits on a frictionless surface and is attached to the end of a spring with spring constant k = 2.5 N/m. What is the frequency of oscillation
An incandescent lightbulb draws 0.50 A, while a compact fluorescent with the same light output draws 125 mA. How do their energy-consumption rates compare
question1an ocean liner leaves new york city and travels 32.0deg north of east for 299 km. how far east and how far
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