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A rod 1.500 m long consists of a 0.900 m length of aluminium joined end-to-end to a 0.600 m length of brass. The free end of the aluminium section is maintained at 160C and the free end of the brass piece is maintained at 20C. No heat is lost during the sides of the rod. At a steady state, what is the temperature T of the point where the two metals are joined?
A kilogram of water (c = 4.186 kJ/kg °C) is stirred using a 400 watt device for 5 minutes. How much heat was lost to the surroundings
When people exercise they shed heat to the environment by sweating and radiating, calculate the rise in body temperature after one hour
A car is traveling with a constant velocity when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2, what was the magnitude of the car's original velocity
A hunk of aluminum is completely covered with a gold shell to form an ingot of weight 44.0N. What is the weight of the gold in the shell
A 25g bullet pierces a sand bag 27cm thick. If the initial bullet velocity was 64 m/s and it emerged from the sandbag with 35m/s, what is the magnitude of the friction force
Red light of wavelength 665.9 nanometer produces photoelectrons from a certain material. Evaluate what is the material work function
You pull your 18-kg suitcase at constant speed on a horizontalfloor by exerting a 43-N force on the handle, What is the normal force on the suitcase
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
To understand how to apply the equations for one-dimensional motion to the x and y directions separately in order to derive standard formulas for the range and height of a projectile
The end milling cutter has two teeth and its diameter = 15.0mm. Find out the feed rate and time to complete the cut.
At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 810 m/s2, find the magnitude of the net force acting on the soccer ball
A coil with internal resistance can be modeled as a resistor and an ideal inductor in series. Assume that the coil has an internal resistance of 1.60 ?, What is the quality factor of the circuit
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