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Devhuti
Subject: Science
, asked on 16/1/18
A. A person weigh 110.84 N on moon, who acceleration due to the gravity is 1/6of that Earth. If the value of the G on Earth is 9.8ms-2. Calculate
i) G on moon
ii) mass of person on moon.
iii)weight of person earth.
B. How does a value of G on the Earth is related to mass of the earth and its radius? derive it .
Answer
3
Devhuti
Subject: Science
, asked on 16/1/18
MOON IS EXPERIENCING A GRAVITATIONAL FORCE DUE TO EARTH AND IS REVOLVING AROUND THE EARTH IN A CIRCULAR ORBIT. HOW MUCH WORK IS DONE BY THE MOON ?
Answer
1
Devhuti
Subject: Science
, asked on 16/1/18
IN AN EXPERIMENT A METAL BALL WEIGHS 2 N IN AIR AND 1.5N WHEN IMMERSED COMPLETELY IN WATER. WHAT IS THE MAGNITUDE OF THE BUOYANT FORCE ACTING IT ?
Answer
1
Devhuti
Subject: Science
, asked on 16/1/18
A) SUGGEST TWO WAYS TO DECREASE PRESSURE ON SURFACE.
B) DENSITY OF AN OBJECT IS 1.8 G/CM
3
. EXPRESS IT IN KG /M
3.
Answer
1
Devhuti
Subject: Science
, asked on 16/1/18
state the difference between gravity and gravitation. a sphere of mass 40 kg is attracted by another sphere of mass 80 kg, by a force of 2.5 9*10
-6
N when their centre are 300 mm apart. find the value of G.
Answer
1
Pranav
Subject: Science
, asked on 15/1/18
An object is thrown vertically upwards and rises to a height of 10 m. Calculate the velocity with which the object was thrown upwards? Take g=9.8 m/s
2
a) 14m/s
b) 16m/s
c) 10m/s
d) 9.8 m/s
Answer
3
Uday Kanojia
Subject: Science
, asked on 14/1/18
Why does moon attract to earth for a certain distance by gravity,why the moon do not get stuck to the earth ?
Answer
2
Shubham
Subject: Science
, asked on 13/1/18
What is the relation betweenmass and weight of the body
Answer
1
Prithvi Raj Singh
Subject: Science
, asked on 13/1/18
Time can be relative as motion is ??? And what about space time entity ??
Answer
1
Shubham
Subject: Science
, asked on 12/1/18
State any phwnomena related to universal law of gravitation
Answer
3
Garima Srivastava
Subject: Science
, asked on 11/1/18
A body of mass 10 kg is dropped from a height of 14.9 m calculate its PE n KE when it is 10 m from the ground.
Answer
2
Sapanpreet Singh
Subject: Science
, asked on 9/1/18
The density of turpentine oil is 840kg/m3 . What will be its relative density?
Answer
2
Sapanpreet Singh
Subject: Science
, asked on 9/1/18
A ship made up of iron and steel does not sink in the sea, but the same amount of iron and steel in the form of a sheet would sink. Why?
Answer
1
Sapanpreet Singh
Subject: Science
, asked on 9/1/18
It is easier to push an empty box than a box full of books.
Answer
1
Chaitanaya Mahajan
Subject: Science
, asked on 5/1/18
oil is more dense than water then why oil floats on water
Answer
1
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What are you looking for?
i) G on moon
ii) mass of person on moon.
iii)weight of person earth.
B. How does a value of G on the Earth is related to mass of the earth and its radius? derive it .
B) DENSITY OF AN OBJECT IS 1.8 G/CM3 . EXPRESS IT IN KG /M3.
a) 14m/s
b) 16m/s
c) 10m/s
d) 9.8 m/s