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A Grandfather's Clock Discuss how a grandfather clock (a pendulum clock), accurate at 20oC, will run fast or slow on a hot day (say, 30oC)?
Base your answer on physics and the formula for the simple pendulum.
If you make the rod of the Pendulum out of Wood ( look up the coefficient of linear expansion) What is the change in length and thus the
period?
Seeing your result, explain how adjustments are made to clocks running too fast or slow because of temperature change.
Knowing this, what other things in your home, work or life in general will run differently based on temperature? Does humidity also have an effect on your example? Explain why? Be creative and think about things you use all year long that might be affected by temperature and humidity as far as operation. It does not just have to be an example that affects timing. It could affect operation, size, etc.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
What is the maximum displacement of the bridge deck?
What is the magnitude of the current in the wire as a function of time?
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
Illustrate the cause of the components accelerating from rest down the conveyor.
Calculate the dc voltage applied to the circuit.
Quadrupole moments in the shell model
Determine the tension in each string
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Evaluate maximum altitude?
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