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Conside a spherical asteroid (radius 10km and constant mass density 3g/cm^3). The core extends to 3km and contains radioactive material. (The rest of the asteroid contains no radioactive material. The heating rate in the core is 10^-8 erg/s/g
1. Determine the temperature at the center of the asteroid
2. Determine the temperature at the surface of the asteroid
3. At what radius relative to the center of the asteroid, is the rate of outward directed flux of heat a maximum? Justify.
It is proposed that future space stations create an artificial gravity by rotating, What rotation period will provide "normal" gravity
A 44 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is 5.40 x10^5 N·m2/C. What is the magnitude of the electric field.
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.50 kg, How far will m1 descend below its initial level and Find the velocity of m1 after 1.80 s
What kind of mirror must be used and what must its radius of curvature be?
How much time is spent in pushing the mower
The current in a solenoid with 21 turns per centimeter is 0.45A, Find the magnitude of the net magnetic field a radial distance of 0.70 cm from the straight wire.
At the intersection of Texas Avenue and University Drive, a yellow, subcompact car with mass 800kgtraveling east on University collides with a maroon pickup truck with mass 1850kg, Calculate the speed of the car before the collision
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
What is tension in the cord
How various kilograms of nitrogen are boiled away in time of 7.50 h. car that hits a line of water barrels and takes 1.8s to stop.
A small remote-control car with a mass of 1.60 kg moves at a constant speed of v = 14.0 m/s in a vertical circle inside the hollow metal cylinder that has the radius of 5.00 m.
What is the minimum coefficient of friction between tires and road that would allow cars to take the turn without sliding off the road.
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