Motion — Science STD 9 — Question

Animal cell lacking nuclei would also lack in:

Four students A, B, C and D verified the law of conservation of mass by performing chemical reaction between barium chloride and sodium sulphate. All of them took 107.2g barium chloride solution and 116.1g of sodium sulphate solution and mixed them in the beaker of mass 150g. They reported their results as follows:

Students	Colour of reaction mixture after mixing	Mass of reation mixture in the beaker including mass of beaker
A	White Precipitate	383.3g
B	Brown Precipitate	393.3g
C	White Precipitate	373.3g
D	Brown Precipitate	363.3g

The correct observation is that of student.

Which of the following parameters determines the loudness of sound?

Cell inclusions are:

What kind of force is required to accelerate the motion of an object?

When a body is dipped completly or partially into a liquid, then weight (w) of the liquid displaced by the body and upthrust force on the body into the liquid are related as:

1. y = constant: Uniform motion
2. a = constant: __________

 If work is done at a faster rate, then: