Question

Name two materials which float on water and two which sink in water,
Which of the following materials are 'heavier than water' and which lighter than water'?
Wood, Chalk, Oil, Kerosene, Iron, Copper, Ice, Aluminium, Plastic, Stone​

Answer 1

materials which float

Apples,wood ,sponges.

material which sink

resin,granite, glass,steel

Answer 2

Explanation:

Explanation:

find the time taken by a car to cover a distance of 2t to the power 4 -3t cube -9t -12 km at the speed of 2t to the power 4 +3t +4 km/hrA satellite is revolving around a planet of radius R,in a circle or radius r with angular speed w. Find the acceleration due to gravity on planet,s surface