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Q1. A person exerts a horizontal force of F = 175 N in the test apparatus shown in the drawing. (h = 0.25 m.) Find the horizontal force M that his flexor muscle exerts on his forearm.
Q2. The trombone's low B2 is played with the slide in first position. Take the speed of sound to be 344m/s.
What is its effective length--that is, length of an idealized closed tube with the same second-mode frequency?
How to create a condition of weightlessness inside aircraft
What average force athletes legs apply on a ground
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
How numerous extra electrons are on this particular oil drop (given the presently known charge of the electron)?
Illustrate a basketball momentum vectors
What is an index of refraction of the liquid
The period of oscillation of an object in a frictionless tunnel running through the Earth is 84.3 min. What is the time of oscillation of an object in a similar tunnel on the Moon.
A conveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. The sand is originally at rest, then moves at a speed of 0.20 m/s all along the conveyor belt. What is the instantaneous power produced by this machine..
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?
What is the horizontal component of velocity
A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480, goes completely through the block, emerging at a speed of 200 .What is the speed of block immediately after the bullet exits.
Find out an effective coefficient of kinetic friction
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