Work And Energy — Science STD 9 — Question

If the mass of a body is M on the surfrace of the earth, then its mass on the surface of the moon will be:

The given waves have equal:

White fibres of connective tissue are made up of:

A mixture of chloroform and water taken in a separating funnel is mixed and left undisturbed for some time.The upper layer in the separating funnel will be:

Two chemical species X and Y combine together to form a product P which contains both X and Y, X + Y → P, X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y and Pare correct?

1. P is a compound.
2. X and Y are compounds.
3. X and Y are elements.
4. P has a fixed composition.

The DNA and RNA are found in:

he value of g on the surface of the moon:

1. Is the same as on the earth.
2. Is less than that on the earth.
3. Is more than that on the earth.
4. Keeps changing day by day.

The phrase omnis cellula e cellula was given by:

A wristwatch works on the basis of energy possessed by:

(1) In uniform circular motion, tangential acceleration is zero (2)In uniform circular motion, velocity is constant.