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An engineer wishes to determine the spring constant of a helical spring. She first puts enough weights on the spring to pull the coils apart. Using a simple wooden meter stick with millimeter marks, she finds that the elevation of the end of the spring changes from 63.5 cm to 52.6 cm when she adds a lab weight whose stamped value is 400 grams. The uncertainty of the stamped weight is 2%. Take g = 9.81 m/s2 with negligible uncertainty.
a. What is the best estimate of the spring constant? (in N/cm)?
b. What is the uncertainty in the value of the spring constant? (in N/cm)
two metal spheres are the same size but have different masses. they are dropoped simutaneously from a cliff. compare
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Calculate the intensity distribution
Each time you remove a bulb you will calculate the new total resistance and the new current.
Assuming that the distance between the Earth and the Sun is approximately 1.5E11 m, the mass of the sun is 1E31 g, how long do we have before the sun runs out of fuel
The tension in the string when the ball is at the very bottom of the circle is 4.3 N. At the very bottom of the circle, a very sharp knife is suddenly inserted, to cut the string directly below point of support. How far to the right of where the s..
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