A balloon whose volume is 300m³ is filled with hydrogen. If the density of air is 1.3 kgm^-3, find the upthrust on the balloon. [g = 10ms^-2]

Similar Questions

A glass plate 0.9cm thick has a reflective index of 1.50. how long does it take for a pulse of light...

A p-n junction diode is used as? ...

The wavelength of ultraviolet radiation is 400nm. If the speed of light in air is 3 x 108ms-1, then ...

Which of the following statements is CORRECT about the earth's magnetic field? ...

The mass of a proton is approximately equal to that of ...

A string of length 4m is extended by 0.02m when a load of 0.4kg is suspended at its end. What will b...

Which of the following is not part of the electromagnetic spectrum? ...

A wave disturbance travelling in air enters a medium in which its velocity is less than that in air....

The area under a force-time graph represents-------- ...

In an electrolysis experiment, a cathode of mass 5g is found to weigh 5.01g after a current of 5A fl...