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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
Biasing: The application of electric potential to semiconductor diode is known as Biasing.
explain me acceleration
Consider the projection data shown in Figure 1. Starting with 0 activity in each pixel and using the algebraic reconstruction technique, determine the activity in the 9 image pixel
In laboratory frame of reference, particle A moves along X direction with velocity 0.5 c and particle B moves along Y direction with velocity 0.4 c. Evaluate velocity of particle B
Real ball bearings Study real ball bearings and roller bearings. Make a list of devices that having ball bearings or roller bearings.
Dirive an expretion for low of succecive disintigretion
what is motion?
Musical Sounds: Sound that produces pleasant effects on our ear is known as musical sound. Such as sound of flute, violin.
A water skier lets go of the tow rope upon leaving the end oaf jump ramp at a speed of 14.0 m/s. The skier has a speed of 13.0m/s at the highest point of the jump. Ignoring air res
Grounding a Positively Charged Electroscope While the positively charged electroscope is touched and its charge becomes grounded or neutralized this is depicted within the anim
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