Why Newton's law of gravitation called universal law
why pieces of bursting cracker fall in all possible directions?
what are the characteristics of gravitational force.......????
A solid weighs 30 gf in air and 26 gf when completely immersed in a liquid of relative density 0.8 . Find (1) the volume of solid and
(2) the relative density of solid
relative density of gold is 19.3.if the density of water is 1000kg/m3 ,what is density of gold in si unit?
a 100 cm3 block has a massof 395 g . find its relative density
radius of an iron sphere is 0.21 cm If density of iron is 7.80g/cc calculate mass
difference between mass and weight
In a house, following appliances are working:
4 tube lights of 40W for 8 hrs daily
2 fans of 60W for 10 hrs daily
1 TV of 200W for 8 hrs daily
Answer the following:
(a) Calculate the total energy consumption per day and for a month (month of April)
(b) What will be the units recorded in the meter for a month of 30 days
(c) Find the electricity bill if cost is Rs.5 per unit ?
Please answer as soon as possible tomorrow is my exam..
what is the difference between thrust and force?
A sharp knife is more effective than a blunt knife.why?
WHAT IS THE S.I. UNIT OF UPTHRUST?
How archimedes principle is used to determine the purity of gold?
a stone is allowed to fall from the top of a tower 100m high and at the same time another stone is projected vertically upwards frome the ground with a velocity of 25ms-1 . calculate when and where the 2 stones will meet.
in a spring balance the space between 0 and 25 gram weight marks is divided into 10 equal parts.find the least count of the spring balance
When an object is immersed into the fluid two forces act on the object in the vertically opposite directions. Name them and also write the factors on which the magnitude of these forces depends on.
the acceleration due to gravity on a planet is 1.96m/s2 .If it is safe to jump from a height of 3m on the earth, the corresponding height of the planet will be ?
A body weighs 63 N on the surface of the earth. What is the gravitational force exerted on it due to the earth at a height equal to half the radius of the earth?
Calculate the quantity of pure gold in 100 g of an alloy of gold and copper.The densitites of gold, copper and the alloy are 19.9 g / cc ,9 g / cc and 16 g / cc respectively.
Name two substances whose density cannot be measured.
1) State Archimedes principle?
2) Give two applications of archimedes principle.
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