Find the force of gravitation between two bodies of masses 100 kg and 1024 kg, placed t a separation of 6000 km.
Which is the biggest continent in the world?
12 How cryptogamaes differ from phanerogams.
Ankit1234
Asked:
December 2022
A light and a heavy object have the same momentum. Find out the ratio of their kinetic energy and which one has the highest kinetic energy?
Assuming that the mass of the earth is 100 times larger than the mass of moon and the radius of earth is about 4 times as that of moon, show that the weight of an object on moon is 1/6th of that on earth.
Ankit1234
Asked:
December 2022
Which of the following characteristic of iron sulphide and mixture of iron fillings+sulphur powder is correct ? (a) Both are heterogeneous (b) Both are homogeneous (c) A mixture of iron filing and sulphur powder may be heterogeneous or homogeneous but a iron sulphide is always homogeneous. (d) Iron sulphide is...
Ankit1234
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December 2022
(i) Distinguish between work, energy and power. State the SI units for each of these quantities. (ii) A dog of mass 16 kg is running at a constant speed of 12 ms"1 Calculate the kinetic energy of the dog.
Ankit1234
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December 2022
what is dominant phase in mosses? a. gametophyte b. pteridophyte c. bryophyte d. sporophyte
Ankit1234
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December 2022
Which will not take place when CS2 is added to a mixture of iron filings and sulphur in a beaker ? (a) Iron filings does not dissolve in CS2 (b) Sulphur will dissolve forming a yellow solution (c) Iron sulphide will be formed
Ankit1234
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December 2022
Calculate the amount of work needed to stop a car of 100 kg, moving at a speed of 15km/hr?
Ankit1234
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December 2022
Define following parts:- a. Molecular mass b. Relative formula mass c. Isobars d. Cation e. Anion
2 Name the organism having its notochord in the tail.
Ankit1234
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December 2022
Three cuboids A, B and C of weights 100 N, 200 N and 1000 N, have surface areas 2m2 , 2m2 and 10m2 respectively. The cuboids which exert the same pressure are: [1] (a) A and B (b) B and C (c) A and C (d) A, B and C
Ankit1234
Asked:
December 2022
A ball is thrown vertically upwards with an initial speed of 100 m/s, simultaneously second ball is dropped from a height of 200m . Find at what height from ground, and what time the two balls meet.