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A metal wire has a resistance of 25.00 ohms under room temperature conditions of 25 degrees celsius. When the wire is heated to 85 degrees celsius the resistance increases by 0.75 ohms. What is the temperature coefficient of resisitivity of this metal?
The distance to a star is approximately 4.2e18 m. If this star were to burn out today, How long does it take for sunlight to reach Jupiter
Due to the nature of the wastewater, the engineer wants to target the high end of this range. Find the proper diameter pipe to the nearest 2” (e.g., 2”, 4”, 6”, 8”, 10”, etc.) to achieve this design objective.
A 40 cm-diameter potter's wheel with a mass of 27 kg is spinning at 180 rpm. how long will it take for the wheel to come to a stop in her hands
A rocket has an initial mass of 28,000 kg, of which 20 percent is the payload. It burns fuel at a rate of 185 kg/s and exhausts its gas at a relative speed of 1.8 km/s.
Using Newton's law of attraction between two bodies, derive a formula for the gravity field as a function of distance x from the point over the center of mass of a spherical body at depth, d and of density, ρ.?
Since you are pulling up a little on the crate, the floor doesn't have to support as much weight. When you are pulling up on the rope as described above, what is the upward force that the floor exerts on the crate.
a current of 2.78A slows in a straight wire segment of length 3.00cm i + 4.00cm j in a uniform magnetic field of strngth (2.50T).
When Skylab recentered the Earth's atmosphere on July 11,19790, it broke into a m,yraid of pieces. What was the kinetic energy of the film vault when it landed
A 20-kg child swings back and forth on a swing such that her height h in m from the ground as a function of x is described by: h(x) = 0.5 + 0.45x2 for -1.2 m ? x ? 1.2 m
A mass m of 0.16 kg is attached to the end of a spring andreleased from rest at t = 0s from an extended positionxmax = 32 cm. Find themaximum speed of the mass
A wire carrying .8 A of current is bent into a right angle the j lenght .04m and i .3m. Determine the net force on the wire from the magnetic field
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 15 in 10.6. What force is required at the edge
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