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What assumptions can be made about the radiation per unit areaof a blackbody? Is there a standard area of black body? What value for emissivity?
1 mole of an ideal gas initially at 100° C and 1 atm is expanded adiabatically against a constant pressure of 5 atm until equilibrium is re-established. Given that the temperature dependence of the heat capacity is CV = 4.50 + 0.005T calculate ?U,..
Find the total power radiated out into space by the Sun assuming it to be at a temperature of 5500 K and the emissivity is 1
q1. a calculate the magnitude of the gravitational force exerted by venus on an 80 kg human standing on the surface of
Two point charges Q1 = +5.70 nC and Q2 = %u22122.40 nC are separated by 25.0 cm. What is the potential energy of the pair of charges
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the temperature inside the box
If the charge of the point charge in the figure were -2Q (instead of +Q), by what factor would the magnitude of the force on the point charge due to the dipole change.
A beetle sits at the top of a bicycle wheel and flies away just before it would be squashed. assuming that the wheel turns clockwise, the beetle's angular displacement is π rad, which corresponds to an arc length of 1.2 m. what is the wheel's radi..
A string that is fixed at both ends has a length of 2.49 m. When the string vibrates at a frequency of 80.8 Hz, What is the fundamental frequency of the string
A 150-W lamp is placed into a 120-V AC outlet. What is the resistance of the lamp
The Burj Khalifa in Dubai is the world\'s tallest building. The structure is 828 m (2,716.5 feet) and has more than 160 stories. how high is the hotel room from the ground
A Yo-yo has a rotational inertia of 952 g·cm2 and a mass of 107 g. Its axle radius is 2.27 mm, and its string is 117 cm long. What is the magnitude of its linear acceleration
speed of 39.0 m/s through a school zone, exceeding the posted speed limit. Find the distance required for the policeman to overtake the motorist
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