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The heating element of a simple heater consists of a 2.0--long, 0.70--diameter nichrome wire. When plugged into a 120V outlet, the heater draws 9.0 of current when hot.
What is the wire's resistance when it is hot, and use your answer to part A to calculate the resistivity of nichrome in this situation
She comes to rest 1.13 m under the surface of the water. Identify the magnitude of the average force that the water exerts on the diver. This force is nonconservative.
You have two small 2.0- balls that have been given equal but opposite charges, but you don't know the magnitude of the charge. To find out, you place the balls a distance apart on a slippery horizontal surface, release them, and use a motion detec..
A 65-kg person wants to get to the top of a 2 m high ledge by swinging up to the top by running and grabbing a suspended rope suspended 5m above the ground by a tree.
What magnetic field strength produced by Helmholtz coils
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 3.45 × 10-11 m. Determine the magnitude..
A glass sheet 1.40 ?m (micrometer) thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 538 nm and 615.00 nm.
A 115 granite cube slides down a 35 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest.
A hypodermic syringe contains a medicine with the density of water. The barrel of the syringe has a cross-sectional area of 2.5 x10-5 m2.
The atomic number of lead is 82. The alpha particle is a helium nucleus, with atomic number 2.
find the magnitude and direction of the field at this point.
What is the main possible displacement of the shopper
As part of a safety investigation, two 1800 cars travelling at 18 are crashed into different barriers. Find an average forces exerted on (a) car that hits a line of water barrels and takes 1.80 to stop, and (b) car that hits a concrete barrier and ta..
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