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A 100 Ohm resistor dissipates heat to its surroundings, isothermally. The resistor maintains a constant temperature of 300 K. A current of 10 A is passed through the resistor for 300 seconds.
A) What is the change in entropy of the resistor?
B) How much energy does the surroundings absorb?
C) What is the change in entropy of the surroundings?
D) What is the change in mass of the surroundings?
A plane is flying southwest at 155 mi/h and encounters the wind from the west at 45mi/h? what is the planes new velocity with respect to the ground in standard position.
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
Identify (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's total displacement measured from its starting direction.
An electron with speed v0 =4.16×106m/s is traveling parallel to and along the same direction as an electric field of magnitude E = 7.90×103N/C, How far will the electron travel before it stops
A photon with energy E collides with a stationary mass m. What is the mass and speed of this particle
A string passes over a frictionless pulley and connects a 250 g block to 2.00 kg block. The inclines are frictionless. Assuming you release both masses from rest, how much time would it take the 250g to travel 2200cm next to the ramp.
Explain how does that compare with the heat needed to reaise the temp of the same mass of water through the same temp difference?
Two objects (39.0 and 23.0 kg) are connected by a massless string that passes over a massless, frictionless pulley, find the acceleration of the objects
The current-density magnitude in a certain circular wire is J = (3.10 × 1010 A/m4)r2, How much energy is converted to thermal energy in 2.00 h
The spring is compressed against the floor a distance 2.5 cm and released. If the spring constant is 119 N/m, illustrate what is the magnitude of the spring force acting on the toy at the moment it is released?
Without taking the existence of the nebula into consideration, based on its apparent magnitude, how far away does the star in part (b) appear to be? What would the propotion error be in determining the distance if interstellar extinction were negl..
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
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