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Chuck Norris’s roundhouse kick is quite impressive. Suppose his foot begins from rest and takes two thirds of a second to swing totally around a 1.10-m circular arc. (a) If the angular acceleration is assumed constant for the first third of a second, and then zero after that, what is its magnitude? (b) What is the foot’s tangential acceleration through the first 0.33 s? What is (c) the maximum tangential speed his foot obtains and (d) at what percent of a full rotation does this occur?
A thin wire is bent into a semicircle, having a radius of curvature equal to 6.40 cm. What is the potential at the center of curvature?
A 48.9 kg girl is standing on a 129 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is the velocity of the plank relative to the ice surface
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
question a bottle has a mass of 35.00 g when empty and 98.40 g when filled with water. when filled with another fluid
If the circular surface of the upper end of the rod is maintained at 290 K, what is the approximate boil-off rate of liquid helium after the lower half has reached 4.20 K
A 2-mol ideal gas system undergoes an adiabatic process where it expands, How much heat is received by the system
questionconsider a person m80 kg standing on the flat horizontal ground at a location on the equator of thenbspearth.
Two blocks are connected by a very light string passing over a massless and frictionless pulley (Fig. E6.7). Traveling at constant speed, the 20.0-N block moves 75.0 cm to the right and the 12.0-N block moves 75.0 CIJl downward.
q1. the potential at location a is 393 v. a positively charged particle is released there from rest and arrives at
A merry-go-round starts from rest and accelerates uniformly over 16.5 s to a final angular velocity of 7.65 rev/min. Find the person's tangential acceleration
It takes only 9.12N of force to hold up a 1KG metal crown in water, Compute the specific gravity of this metal, and guess what element it might be using a density table
An automobile radiator is filled to the brim with 45 liters of glycerin coolant at 10 degrees C. How much glycerin overflows from the radiator as a result of expansion
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