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Q1. A 1.00-kg Teflon disk is slid down a 5.00-m steel plate that is mounted at a 30 degree angle with respect to horizon, preliminary from rest, the disk is released from the top of the steel plate. How long does it take for the disk to reach the bottom, and what is its final velocity? (Do not abandon friction)
Q2. A 0.230- coffee cup at 19 is filled with 0.240 of brewed coffee at 97. The cup and the coffee come to thermal equilibrium at 79.If no heat is lost to the environment, what is specific heat of the cup material?
Q3. The mass of the earth is 5.98x10^24 and the mass of the moon is 7.36x10^22 kg. The distance of separation, measured between their centers, is 3.84x10^8. Place the center of mass of the earth-moon system as measured from the center of the earth.
Find out an average acceleration of the motorcycle
An open-open organ pipe is 67.9 cm long. AN open-closed pipe has an essential frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe.
Estimate the thickness of lead shielding needed to reduce the exposure rate 2.5 m from a 5.92x10^11 Bq point source of Cs-137 to 1.0 mR/hr.
What is modify in frequency ff - fi
What is the linear speed of the phonograph needle
Compute the semi major axis of the star orbit
A contact lens is made of plastic with an index of refraction of 1.36. The lens has an outer radius of curvature of +1.91 cm and an inner radius of curvature of +2.41 cm. What is the focal length of lens?
Find out an angular momentum of the system
Which of the planets fits the following description: "a solid, cool surface, with occasional dust clouds and a thin CO2 atmosphere".
How much time is necessary for the torso to come to rest
Compute the average linear velocity of the discus
What focal length does the lens require
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