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A body of mass 2 kg thrown vertically upwards with a velocity 40 m/s comes to instantaneous rest at a height 50 m. Is there any other force (other than gravitational force), if yes then calculate the value. Ans) Yes , a force due to air drag will be there , to calculate this wehave to first find work done by air drag..Acc. To work-energy theoremWgravity + Wair drag = change in K.E.-Mgh +Wair drag = change in K.E.Wair drag =change in K.E. +mgh=[0-1/2mu2] +mgh = -1/2 x 2 x (40)2 + 2x 10 x 50 = -1600+1000 = -600Jnow w.d. = F x sF= -600/50 = -12N
what is cmos
The neutral point in an electrostatic field appears to have a resultant potential. why is this so?
definetion and abstrec of positive clliper?
What is cavitationin terms of ultrasonic? Cavitation is an effect which is generated into liquids by intensive ultrasonic waves. The resulting pressure waves make vacuum bubb
determine the neutral point in a system of two unlike charges seperated by a distance
Im having trouble understanding these,, could someone explain them in lamens terms
LENARD ATOMIC MODEL : Lenard suggested that the atom must have a lot of empty in it. Lenard's model of an atom could not explain about the stability and mass of an atom .
what is the substance produced in the liver that acts in the small intestine during digestion?
When two dissimilar sound rays of slightly different frequencies, traveling in a phase along the same direction, superimpose on one other, the intensity of the resultant sound at a
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