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A hollow spherical iron container with outer diameter 20 cm and thickness 0.4 cm is filled with iced water at 0°C. If the outer surface temperature is 5°C, determine the approximate rate of heat loss from the sphere, in kW, and the rate at which ice melts in the container. The heat of fusion of water is 333.7 kJ/kg.
How much mass of positron and electron we require to move the Earth off orbit. Theoretically, how much oil do we need for that?
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force
A hare and a tortoise compete in a race over a straight course 1.05 km long. The tortoise crawls at a speed of 0.100 m/s toward the finish line. How far is the tortoise from the finish line
A 75.0 kg patient is running a fever of 105°F and is given an alcohol rub to lower the body temperature. determine the mass of alcohol necessary to lower the body temperature down to 102°F
q1. a 170 g block hangs from a spring with spring constant 9.0 nm. at t0 s the block is 24 cm below an equilibrium
Light of wavelength 390 nanometer is incident on a clean metal surface. The metal has work function 2.60 eV. Find the stopping potential for emitted electrons
The door shown provides outdoors access to the basement of a building. Determine the value of F if the resultant moment of F and the 85 lb weight about line BCD is to be -64 in.lb.
A net force is applied to an object. If the same net force is then applied to a second object with 6.2 times the mass of thru first, then the acceleration of the second object will be how many times the acceleration of the first object
A long distance power line is to carry 175 megawatts (1.25x10^8W) of alternating current power at distance of 15.0km at a peak voltage of 1.00MV and a frequency of 60Hz.
A fully charged capacitor with a voltage of 120 V is discharged through a resistor. What is the voltage across the capacitor at the end of five time constants
A ball is dropped from a height of 10 ft onto a level floor. If the coefficient of restitution is 0.9, how long will it take the ball to come to rest? Also, what is the total distance traveled by the ball.
For a 11.5-mm -diameter drill bit turning at a constant 1250rev/min , find the maximum linear speed of any part of the bit. Find the maximum radial acceleration of any part of the bit.
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