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The planet, Pluto, receives about 0.266 W/m2 from the Sun, averaged over the whole surface and radiates an equal amount back into space (that is Pluto is in equilibrium). Assuming Pluto is a ideal emitter (e = 1.0) estimate its average surface temperature.
A specimen of oil having an initial volume of 600cm3 is subjected to a pressure increase of3.6×106Pa, What is the bulk modulus (in Pa) of the material
Your car's wheels are 65 cm in diameter and the wheels are spinning at an angular velocity of 107 rad/s. How fast is your car moving in kilometers per hour
Which of the following statements are true about nuclear decays and radioactivity?
a the rock first moves horizontally from the origin to the point 3.0 m 0. then it moves vertically from 3.0 m 0 to 3.0
A 55-kg hiker starts at an elevation of 1600 m and climbs to the top of a 3100-m peak. What is the hikers change in potential energy
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. Estimate the temperature increase of the beef due to this procedure
find the net rate of radiation by a pot at 35.7°C that has been placed in a -23.9°C freezer. The pot's surface area is 0.111 m2 and its emissivity is 0.655.
a 2340 kg satellite used in a cellular telephone network is in a circular orbit at a height of 770km above the surface
For exercise, a 60 kg athlete runs up a 10-m high hill in 30 seconds. Assume the efficiency of the human body is 25%. Determine her metabolic power
A large fake cookie sliding on a horizontal surface is attached toone end of a horizontal spring with springconstant k = 420 N/m; the other endof the spring is fixed in place. The cookie has a kinetic energy of22.0 J as it passes through the sprin..
A square plate of copper with 47.0 cm sides has no net charge, Find the charge density of each face of the plate
A 1.4-kg, 15-cm-diameter solid sphere is rotatingabout its diameter at 70 rev/min. what is the new angular speed of the ball
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