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1) The diameter of the aluminum cylinder is measured to be: (4.935 ±0.003)cm. The hanging mass (paint bucket and 5kg) for a Mechanical Equivalent of Heat experiment is recorded as (5.2977 ±0.0002)kg. The aluminum cylinder is turned 234 times. Calculate the work done cranking the aluminum cylinder.
2) The amass of the aluminum cylinder is (207.8 ±0.1)g. Once the cylinder is turned through the numbers of turns as described in Problem 1, the cylinder's change in temperature is (11.2 ±0.6) °C. Determine the amount of heat that entered the cylinder.
3) Based on the results of Problem 1 and Problem 2, determine the value for the Mechanical Equivalent of Heat as determined in the experiment described. How does this compare to the accepted value?
An airplane needs to reach a velocity of 402km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight.
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
What tension is necessary to tune string properly
A particle with a charge 3.2 x 10^-19 C is moving at a speed of 5x10^7 m/s that makes an angle of 40 degrees with respect to a uniform magnetic field B, Determine the magnetic field strength B
Explain the spacing between allowed vibrational energy levels
A nearsighted person wears contacts with a focal length of ? 6.5cm, what is her uncorrected far-point distance
a baseball pitcher throws a fastball across home plate. the ball crosses the plate, calculate the speed of a baseball that takes .010 s to cross home plate, .30 m from front to back
A brick is released with no initial speed from the roof of a building and strikes the ground in 2.70 {rm s}, encountering no appreciable air drag. How tall is building? How fast is the brick moving just before it reaches the ground.
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. What is the pressure inside the cylinder during the fire
A car of mass 2100 kg collides with a truck of mass 4500 kg, and just after the collision the car and truck slide along, stuck together. The car's velocity just before the collision was m/s, and truck's velocity just before the collision was m..
Just before the collision and in kilometers per hour, what was the speed of the rocket piece relative to the satellite if both were in circular orbits and the collision was (a) head-on and (b) along perpendicular paths.
At one instant a bicyclist is 53m due east of a park's flagpole, going due south with a speed of 12m/s. Then 37s later, the cyclist is 53m due north of the flagpole, going due east with a speed of 12m/s. For the cyclist in this 37s interval.
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