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Q. A wire 2.00 m long and 1.00 mm in diameter has a resistance of 0.500 Ω. A second wire 4.00 m long and 2.00 mm in diameter has twice the resistivity of the first wire. Find the resistance of the second wire.
Q. What is least important in returning blood to the heart? Negative intrathoracic pressure, valves and veins, the pumping action of skeletal muscles, or the pushing of blood by the arterial system.
What is moment of inertia
What is the speed of the block of clay right after the collision. What impulse does the clay exert on the block.
A transverse electromagnetic plane wave with a frequency of 2.84 MHz travels directly away from you (- z direction). At time t = 0, your magnetic field detector measures a magnetic field of 4.57 × 10-8 Tesla pointing down (- y direction) that further..
Monochromatic light (640 nm) strikes a pair of slits at normal incidence, forming the double-slit interference pattern on a screen located 1.82m from the slits. It shows the interference pattern observed on the screen. What is the slit separation.
How numerous years would it take a thermally insulated one-million-kilogram chuck of granite to undergo a 1000k boost in temperature?
A bus travelling along the straight road at 100km/hr-1 and the bus conductor make at 6kmhr-1 on the floor of the bus in the same direction on the bus. Find the speed of the conductor relative to road and relative to the bus. If the bus conductor now ..
A truck covers 40.01 m in 7.615 s while smoothly slowing down to final speed 1.40 m/s. What is the original speed and what is the acceleration.
David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David.
A certain organ pipe, open at both ends, produces a fundamental frequency of 256 in air.If the pipe is filled with helium at the same temperature, what fundamental frequency will it generate ? Take the molar mass of air to be 28.8 and the molar ma..
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
What is the magnitude of the force that maintains circular motion acting on puck.
A wooden raft has a mass of 76 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
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