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A Nichrome heater dissipates 450 W when the applied potential difference is 110 V and the wire temperature is 700°C. What would be the dissipation rate if the wire temperature were held at 200°C by immersing the wire in a bath of cooking oil? The applied potential difference remains the same, and ? for Nichrome at 700°C is 4.00×10-4/K.
Determine the net Force (magnitude and direction) acting on wire 3 due to wires 1 and 2 for currents of 10A. Each wire has a horizontal length of 50 cm and each wire is seperated by a distance of 2 cm
The spring constant for the tendon is the same for both groups, 32 {rm {N}/{mm}} . What is the difference in maximum stored energy between sprinters and nonathletes.
A space station is moving in a circular orbit around the Earth. It makes one revolution in 90 minutes. How high above the Earth's surface is the space station
On a highly polished, essentially frictionless lunch counter, a 0.500 kg submarine sandwich moving 3.00 m/s to the left collides with an 0.250 kg grilled cheese sandwich moving 1.20 m/s to the right. How much mechanical energy dissipates in the col..
An uncharged nonconductive hollow sphere of radius16.0cm surrounds a17.0µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along thezaxis, and a hole is drilled in the sphere. Calculate th..
A metal ball with a mass of 2.97·10-6 kg and a charge of +4.91 mC has a kinetic energy of 6.81·108 J. how close will it come to the plane before stopping
Calculate the angular velocity the flywheel must have to contain enough energy to take the bus from rest to a speed of 27.0 m/s, assuming 83.0% of the rotational kinetic energy can be transformed into translational energy
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz, What is the speed of the bird
A 2 kg block is connected into a spring attached to a wall with spring constant of 12 N/m. How far does the block travel before coming to rest
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22.0 m/s at an angle 60.0 degrees; find the maximum height the ball goes above the ground
A cylinder with a piston contains ½ mole of an ideal gas initially at pressure 4.0 x105 Pa and temperature 300K. Compute the maximum pressure
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions, Calculate the rate at which the sun is losing mass
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