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A 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity. How much work has the girl done?
Ans:
2000 joules or 1960 joules work is done by the girl.
how ultrasonic wave detect by piezoelectric detector ?
A manufacturer of light bulbs advertises that its 55-W bulb, which produces 800.0 lm of light output, gives almost the similar light as a 60.0-W bulb with an energy savings. Th
Sievert; Sv: The derived SI unit of dose equivalent, explained as the absorbed dose of ionizing radiation multiplied through internationally-agreed-upon dimensionless weights,
describe the construction and working of michelson interformeter?
Visible Radiation (Waves): Visible waves have a wavelength range among 400 and 700 nanometre.
Snell's Law: The ratio of sine of angle of incidence to the sine of angle of refraction is constant for all rays passing from one medium to another medium. That is Sini/Sinr
what is gravitational field is?
when the body is uniform motion
how much you will charge
Electric field lines In good metallic conductors: In good metallic conductors: (i) Static electric fields are not there (zero inside a conductor) (ii) Charges reside
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