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Q1. A small fly of mass 0.27grams is caught in a spider's web. The web vibrates predominately with a frequency of 4.5Hertz. What is the value of the effective spring constant stiffness constant for the web?
Q2. A potter's wheel having a radius 0.55m and a moment of inertia 12kg•m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exerting a radially inward force of 67N. Find out the effectual coefficient of kinetic friction between the wheel and the wet rag.
On a cool morning, when the temperature is 16.0 ^circC, you measure the pressure in your car tires to be 20.0 psi. After driving 30.0mi on the freeway, temperature of your tires is 51.0 ^circC.
A person with a mass of 103 kg is standing on a scale that reads weight in newtons inside of an elevator. If the elevator accelerates upward at 3.2 m/s2, what does the scale read.
Clarify how Einstein's contribution to understanding the force between the earth and the moon differed from Newton's. Include a short statement of Einstein's explanation in the answer.
A person holds a ladder horizontally at its center. Treating ladder as a uniform rod of length 3.30 m and mass 7.43 kg, find out the torque the person must exert on the ladder to give it an angular acceleration of 0.405 rad/s2.
What is its velocity at impact? What will its average velocity be? What will its average speed be.
Points A and B have electric potentials of 320 and 160, respectively. When an electron released from rest at point A arrives at point C, its kinetic energy is.
A trapeze artist swings in simple harmonic motion with a period of 4.2s. The acceleration of gravity is 9.81m/s2. Compute the length of the cables supporting the trapeze.
What is x and y coordinates of the shell
A mass of 1.62 kg stretches a vertical spring 0.328 m. If the spring is stretched an additional 0.136 m and released, how long does it take to reach the (new) equilibrium position again.
What is ratio of the applied force
Which kinetic energy equals to rotational motion
Obtain a relation between the equilibrium lattice distance
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