Gravitation — Science STD 9 — Question

Which of the following is the high milk yielding variety of cow?

A heavy stone is thrown from a cliff of height h with speed v. The stone will hit the ground with maximum speed if it is thrown:

Four elements W, X, Y and Z contain 8, 11, 9 and 17 protons per atom respectively. The element which cannot form an anion is most likely to be:

1. W
2. X
3. Y
4. Z

A cup of water holding a steel ball (m) is allowed all under gravity. The reaction between the ball and the base of the cup is:

Which material did you use in the laboratory to observe vacuoles?

Quality of sound is used to distinguish between:

42. A bus moving along a straight line at 20m/s undergoes an acceleration of 4m/s². After 2 seconds, its speed will be:

1. 8m/s
2. 12m/s
3. 16m/s
4. 28m/s

You are on a frictionless horizontal plane. You can get off the plane:

Which parameters shown below are common between uniform circular motion and uniform linear motion:

.......... could be found in both, the nucleus and the cytoplasm: