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An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 350 W . A) What is the resistance of the heater? I know its 120^2/350= 41 Ohms
The radius of electron is 10^ -18 m . What is the minimum momentum transfer ( order of magnitude) required to resolve the structure of an electron? What beam energy would be required if an electron
A solenoid is wound with a single layer of insulated copper wire of diameter 2.700 mm and has a diameter of 4.000 cm and is 1.200 m long. Assume that adjacent wires touch and that insulation thickne
A small coil has a cross section of 5.5 cm2 and consists of 18 turns of wire. If the loop carries a current of 100 mA, what is the torque required to hold the loop at right angles to a field of B =
A copper wire has diameter 0.140mm and length 11.0cm . It's in a horizontal plane and carries a current of 2.35A . The density of copper is 8920 kg/m^3. Find the magnitude of the magnetic field need
A C-glass filament reinforced epoxy composite contains 65% vol filaments and has a density of 2.24 Mg/m^3. If the C-glass density is 1.20 Mg/m^3, what is the epoxy density? Please show your work.
A pump for a power plant takes in saturated water at 1.5 psi and boosts its pressure to 1500 psi. The pump has an adiabatic efficiency of 0.92, Calculate the irreversibility and the second law effic
A turbine accepts steam at 2.0 MPa and 627 degrees C and discharge at 20 kPa. Every second 4 kg of superheated steam passes through the turbine. Calculate the maximum power rating of the turbine.
Gas is stored in a rigid container at 7 degrees C. The volume of the container is 2 cubic meters. The initial gauge pressure is 0. The gas is heated and reaches a gauge pressure of 0.8 MPa. Atmosphe
One billiard ball is shot east at 2.4 m/s . A second, identical billiard ball is shot west at 0.90 m/s . The balls have a glancing collision, not a head-on collision, deflecting the second ball by
A 30.0 g ball of clay traveling east at 7.50 m/s collides and sticks together with a 30.0 g ball of clay traveling north at 3.50 m/sa
A 2.16-µF and a 3.60-µF capacitor are connected to a 65.4-V battery. What is the total charge supplied to the capacitors when they are wired in the following ways?
The filament in an incandescent light bulb is made from tungsten. The light bulb is plugged into a 120 V outlet and draws a current of 1.16 A. If the radius of the tungsten wire is 0.0052 mm, how lo
An industrial proposer claims that he can extract 50 kw power by drawing 3000 kJ of hear per minute from a high temperature reservoir at 950 degrees C and dumping heat to a reservoir at 25 degrees C
Two identical capacitors store different amounts of energy: capacitor A stores 2.4 x 10-3 J, and capacitor B stores 6.7 x 10-4 J. The voltage across the plates of capacitor B is 12 V. Find the volta
A 0.25kg block is placed on a light vertical spring (k=5 x 10^3N/m) and pushed downwards, compressing the spring and continues to travel upwards. What is the kinetic energy of the block at the highe
A uniform electric field of magnitude 230 V/m is directed in the positive x direction. A +11.0 µC charge moves from the origin to the point (x, y) = (20.0 cm, 50.0 cm).
A 2000 kg car pushes a 3000 kg truck that has a dead battery. The drive wheels of the car push against the ground with a force of 6000 N. What is the magnitude of the force (in N) that the truck exe
What common speed is necessary to obtain a 5 x 10-4 m difference in the radii of the Nickel and Copper atoms' paths for the given magnetic field, masses, and charges?
A wire has a length of 6.52 × 10-2 m and is used to make a circular coil of one turn. There is a current of 4.31 A in the wire. In the presence of a 3.50-T magnetic field, what is the maximum
A winch is used to drag a 295N crate up a ramp at a constant speed of 84.0 cm/s by means of a rope that pulls parallel to the surface of the ramp. The rope slopes upward at 26.0 degrees above the ho
When the wire is horizontal, it experiences no magnetic force. When the wire is tilted upward at an angle of 23°, it experiences a magnetic force of 5.6 × 10-3 N. Determine the magnitude o
A high-voltage copper transmission line with a diameter of 1.40 cm and a length of 300 km carries a steady current of 9.75 102 A. If copper has a free charge density of 8.46 x 1028 electrons/m3, ove
The wire carries a current of 6.30 A toward the south. The magnetic force on the wire per unit length of wire has magnitude 3.00 10-3 N/m. (b) What is the magnitude of B?