What will be the duration of the day, If the earth suddenly shrinks to` frac(1)(64)` of its original volume, mass remains uncharged.

Fill in the blanks with appropriate words and write the completed sentences: If the earth shrinks to half of its radius, its mass remaining the same, the weight of an object on the earth will become........ times.

The mass and weight of an object on Earth is 5 kg and 49 N respectively.What will be their values on the Moon? Assume that the acceleration due to gravity on the Moon is frac(1)(6) th of that on the Earth

What would be the value of g on the surface of the earth if its mass was twice and its radius half of what it is now ?

If , at 50^@C and 75 cm of mercury prssure , a definite mass of a gas is compressed suddenly, then what will be the final pressure and temperature of the gas in each case if the final volume is one - fourth of the initial volume ? (y = 1.5)

What would be the value of g on othe surface of the earth if tis mass was twice as large and its radius half of what it is now?

A bar magnet is vibrating in a uniform magnetic induction, the magnitude of which can be changed. If the frequency is found to reduce to half of its original frequency when the magnetic induction changes to 1.25xx10^(-5) frac(wb)(m2) . Calculate the original magnetic induction.

A satellite is going in a circular orbit of radius 4 xx 10^5 km around the earth has a certain speed. (b) What will be the ratio of the weight of a body on the surface of Mars to tyhe weight of the same body on the surface of the earth? The masses of earth and Mars are in the ratio 10:1 and their radii are in the ratio 2:1

If , at 50^@C and 75 cm of mercury prssure , a definite mass of a gas is compressed slowly, then what will be the final pressure and temperature of the gas in each case if the final volume is one - fourth of the initial volume ? (y = 1.5)

What isfocal power of a spherical mirror or a lens? What may be the reason for using P = frac(1)(f) as its expression ?

A diatomic gas at pressure P and volume V is compressed adiabatically to frac(1)(32) times the original volume. Find the final pressure.