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A student wants to loose weight, and he decides to burn calories faster by sitting necked in a 16 C room, letting his body radiate calories away. His body has a surface area of 1.7 m2 . His skin temperature is 35 degrees C. At what rate, kcal/hour will student "burn" calories?
A charge of +2.00 x 10^-9 C is placed at x = 0.0 m. A second charge of +4.00 x 10^-9 C is placed at x = 1.5 m.
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.36 V. The internal resistance of the battery is 1.05 ?. Find the voltage across the battery terminals when there is a current of 1.92 A from the ..
A negative charge, -q, has a mass, m, and an initial velocity, v, but is infinitely far away from a fixed large positive charge of +Q and radius R such that if the negative charge continued at constant velocity it would miss the center of the fixe..
m1 = 26.00 kg, m2 = 13.10 kg, R = 0.12 m, and the mass of the uniform pulley M = 5.00 kg. Calculate the time interval required for m1 to hit the floor
q. a woman walks 252. m in the direction 65.0deg east of north then 212. m directly east.a find the final displacement
When a crown with mass 14,7 kg is submerged in water, an accurate scale reads only 13.4 kg. Is the crown made of gold
A radioactive isotope has a decay constant lambda = 0.0582 s-1. What is the half-life of the isotope in seconds? What fraction of the activity of a sample of the isotope will remain after 30 seconds?
A window pane of dimensions 0.75 m x 0.65 m is installed on a day when the temperature is 35F. What is the percent change in the area of the glass
A horizontal pipe carries a easily flowing liquid with density 1.19 × 103 kg/m3. At locations 1 and 2 along the pipe the diameters are 6.41 cm and 2.61 cm, respectively. Is the flow speed at location 2 higher or lower than at location 1?
A diver shines an underwater searchlight at the surface of a pond (n= 1.33). At what angle (relative to the surface) will the light be totally reflected?
A Carnot engine operates with an efficiency of 25.0% when the temperature of its cold reservoir is 263 K. Assuming that the temperature of the hot reservoir remains the same, what must be the temperature of the cold reservoir in order to increase ..
When ultraviolent light with a wavelength of 262nm falls upon a clean metal surface, What is the photoelectic threshold wavelength for this metal
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