NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Kunal Singh
Subject: Physics
, asked on 23/2/18
plz answer both asap
Q.15. A planet of mass M is moving along a circular orbit around the sun with velocity 32.9 km/s. What is the period of revolution of this planet around the sun?
Q.16. A particle is projected vertically upwards from the surface of earth (radius Re) with kinetic energy equal to half of the minimum value needed for it to escape. Calculate the height to which it rises above the surface of the earth.
Answer
1
Bhavika
Subject: Physics
, asked on 20/2/18
how can you say that newtons third law of motion follows from the newton second law of motion ? {no link plz}
Answer
1
Bhavika
Subject: Physics
, asked on 19/2/18
A body is dropped from rest falls freely. determine the position and speed of the after 2 seconds .
Answer
1
Arpita Dua
Subject: Physics
, asked on 19/2/18
Q.9. A liquid drop of 1 g falling from rest from a height of 1 km hits the ground with a speed of 40 m/sec.
Find the work done by
i) Earth's gravitational Force (Wg)
ii) Resistive force of air (W air)
Answer
1
Rasheda V.m.
Subject: Physics
, asked on 19/2/18
The weight of a person on the earth surface is 72 kgwt. At what height , his weight becomes 32 kgwt? Radius of earth is 6400 km
Answer
2
Arpita Dua
Subject: Physics
, asked on 19/2/18
Q.5. Where does the centre of mass of a two particle system lie, when one particle is more massive than the other?
Answer
1
Rasheda V.m.
Subject: Physics
, asked on 17/2/18
Effect of height on the value of g
Answer
1
Shantanu Vasvada
Subject: Physics
, asked on 16/2/18
(0.5)^2÷3
Answer
1
Siraj
Subject: Physics
, asked on 15/2/18
the time period of a satellite of earth is 7 hrs . If the separation between earth and satellite is increased to two times the previous value, what will be its new time period ?? Please experts answer i checked the previous ans but i could not understand and i want the ans for the numerical
Answer
1
Nura Mohammad
Subject: Physics
, asked on 13/2/18
Prove that gravitational force is a conservative force with diagrams
Answer
1
Ian Colaco
Subject: Physics
, asked on 13/2/18
Derive the formula for the moment of inertia of a thin rod.
Answer
1
Ian Colaco
Subject: Physics
, asked on 13/2/18
derive the energy of an orbiting satellite
Answer
1
Ian Colaco
Subject: Physics
, asked on 13/2/18
derivation the centre of mass of 3 particle system
Answer
1
Ian Colaco
Subject: Physics
, asked on 13/2/18
Derive the expression kinetic energy of a rolling body.
Answer
1
Ian Colaco
Subject: Physics
, asked on 13/2/18
Derive the relation between g and G.
Answer
1
Prev
3
4
5
6
7
Next
What are you looking for?
Q.15. A planet of mass M is moving along a circular orbit around the sun with velocity 32.9 km/s. What is the period of revolution of this planet around the sun?
Q.16. A particle is projected vertically upwards from the surface of earth (radius Re) with kinetic energy equal to half of the minimum value needed for it to escape. Calculate the height to which it rises above the surface of the earth.
Find the work done by
i) Earth's gravitational Force (Wg)
ii) Resistive force of air (W air)