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Problem: A glass tea kettle containing 500 g of water is on the stove. The portion of the tea kettle that is in contact with the heating element has an area of 0.090 m2 and is 1.5 mm thick. At a certain moment, the temperature of the water is 75°C, and it is rising at the rate of 3 C° per minute. What is the temperature of the outside surface of the bottom of the tea kettle? Neglect the heat capacity of the kettle, and assume that the inner surface of the kettle is at the same temperature as the water inside. The thermal conductivity of glass is 0.840 W/m K and the specific heat of water is 4186 J/kg K.
A futuristic design for a car is to have a large disk-like flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of 0.50 m and can rotate up to 520 rev/s. Assuming all of this stored kinetic energy could be transf..
A worker lifts a weightw by pulling down a ropewith forceF. The upper pulley is attached to theceiling by a chain, and the lower pulley is attached.
A blood transfusion is being set up in an emergency room for an accident victim. What is the distance h above the victim's arm where the level of the blood in the transfusion bottle should be located
What is tension in each string
A 10 g particle is undergoing simple harmonic motion with amplitude of 2.0 x 10-3 m and a maximum acceleration of magnitude 8.0 x 103 m/s2. What is the period of the particle
A charged particle moving at a speed of 175 meter per second due east, through a magnetic field of 5.00 mT pointing straight up toward the sky, experiences a force of 4.25 N directed due north
Find the electric field energy density and the energy content for a spherical capacitor of radii r1 and r2 where they hold charges of q and -q
A concave mirror has a focal length of 33.8 cm. The distance between an object and its image is 49.7 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature.
You place an object 18.8 cm in front of a diverging lens which has a focal length with a magnitude of 15.0 cm. Determine how far in front of the lens the object should be placed
Discuss briefly the application of Ampere's circuital law to determine the magnetic field due to current distributions. State Gauss' law for the electric field.
Let I1 be the branch current though R1, I2 be the branch current through R2, and I3 be the branch current through R3. Write Kirchhoff?s loop rule relation for a loop that travels through battery 1, resistor 1, and resistor 3. (Use a clockwise curr..
Obtain the pressure and temperature of the gas a short time after the stopper has been removed, when a negligible amount of heat transfer has taken place.
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