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When throwing a baseball, a force is exerted by the hand on the ball.
a. Is this force a contact force or a field force? Contact Force
b. Throwing a ball 6 m straight upwards needs a 25 N throwing force. How strong is the throwing force it experiences when the ball is half way to the top? At the very top? Half way back downwards?
Since throwing is a contact force, once the ball is not in contact with the hand there is no more force. hence, the answer to all is 0 N
A thermodynamic process, in which the volume of gas always same is known as isochoric process. In this process, the work completed by the body is zero. Therefore from first law
what is space charge and diffusin capacitance.
Q. What are the characteristics of laser beam? Characteristics of laser The laser beam (a) is monochromatic. (b) is coherent with the waves all exactly in phase with o
This phylum includes
An express train, traveling at 36.0 m/s, is accidently sidetracked onto a local train track. The express engineer spots a local train exactly 100 m ahead of the same track and trav
A single-phase, 50Hz transformer has 40 primary turns and 520 secondary turns. The cross-sectional area of the core is 270cm 2 . When the primary winding is connected to a 3
what is the force of friction on a 5 kg box slides on a horizontal plane when its speed decreases 1.5ms-1 in a second?
what is the significne of electric field?
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
All the given four Laws may be written in one relation, PV = nRT =m/n RT This formula is known as deal gas equation. Where m = mass of the gas M = molecular mass of t
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