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Consider a 3-m x 3-m x 3-m cubical furnace whose top and side surfaces closely approximate black surfaces at a temperature of 1200 K. The base surface has an emissivity of e 0.7, and is maintained at 800 K. Determine the net rate of radiation heat transfer to the base surface from the top and side surfaces.
If 0.260kg of blood at a temperature of 37.0 ? C flows to the surface and loses 1400J of heat, what is the temperature of the blood
A block slides down an inclined plane, starting from rest and being pushed with a constant acceleration of 4.95 m/s2 over a distance of 18.2 cm. Find the total time the block is in motion
Express the power in terms of some or all of the variables given in the problem introduction.
A straight uniform stick having a length b (m) and a mass M (kg) is freely pivoted at one end. Find the frequency of oscillation about the pivot, assuming the angle theta is small.
For a spring-mass oscillator, if you triple the mass but keep the stiffness the same, what numerical factor does the period change? That is, if an original period was T and the new period is bT, what is b? It is useful to write out the expression ..
Find the threshold energy that an incident neutron must have when striking an alpha particle to produce a deuterium and tritium nucleus
On a dry day, a car is approaching flat highway curve. If the highway curve has a radius of a 60 m, What is the maximum safe speed for the car
The star Cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. find the orbital period of the planet of Cancri
A block of weight w = 35.0N sits on a frictionless inclined plane, which makes an angle θ = 29.0° with respect to the horizontal, as shown in the figure. (Figure 1) A force of magnitude F = 17.0N , applied parallel to the incline, is just suff..
A large cruise ship of mass 6.80 107 kg has a speed of 12.8 m/s at some instant. what is the ship's kinetic energy at this time
A wooden raft has a mass of 92kg. When empty it floats in water (density 1000 kg/m3) with 48 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A model rocket is launched straight upward with the initial speed of 70m/s. It accelerates with a constant upward acceleration of 3 m/s2 until its engines stop at an altitude of 180 m.
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