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The warm source of a Carnot cycle has a temperature off 100 C, while the cold source consists of melting ice. When the cycle operates for 1 hour it is observed that 1 metric ton of ice has melted. Calculate (a) the heat absorbed in the cycle from the warm source and (b) the heat given away in the cycle to the cold source. The latent heat of fusion at 100 C is 0.3337 x 10^6 J/kg.
A 15-kg iron ball is dropped onto a pavement from a height of 80m. Suppose half of the heat generated goes into warming the ball. What is the temperature increase of the ball in degree C
A Styrofoam box has a surface area of 0.87 m2 and a wall thickness of 2.0 cm. determine the thermal conductivity of the Styrofoam
Nichrome wire is used in some radiative heaters. What power will it draw when first switched on
Two particles of masses and () are located 10 meters apart. Where is the center of mass of the system located
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. What is the total charge of the protons that must be fired at the tumor
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.5g of copper and asked to make a cylindrical wire, What length l will you choose for your wire
A person of mass 75 stands at the center of a rotating merry-go-round platform of radius 2.8 and moment of inertia 920. The platform rotates without friction with angular velocity 1.78. The person walks radially to the edge of the platform. Compute a..
You need to produce a solenoid that has an inductance of 2.55 ?H . You construct the solenoid by uniformly winding 1.07 m of thin wire around a tube. How long, in centimeters, should the tube be
Light of wavelength 60nm illuminates a hydrogen atom in an excited state. What energy level was the electron in initially
q1. a persons heart and head are 1.2m and 1.7m above the feet respectively. find out the potential energy associated
A uniform steel beam has a mass of 720kg On it is resting half of an identical beam, What is the vertical support force at each end
An electron is accelerated horizontally from rest in a television tube by a potential difference of 25,000 V. At what angle will the electron be traveling after it passes between the plates
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