Last seen: Nov 14, 2021
Buoyant force on an object due to a liquid acts in the vertically upward direction.
(a) False (b) True
Pressure is measured in newtons per square metre (N/m2) i.e., Pascal (Pa).
Pressure has unit of Pascal (Pa).
Relative density of water is 1.
Density of water = 1000 kg/m3.
Grams per cubic centimetre (g/cm3).
(a) 9.23 m/s2, 7.34 m/s2, 3.08 m/s2, 1.49 m/s2, 0.57 m/s2, 0.30 m/s2 (b) This distance F of 10000 km is high up in the sky. The distance of 10000 km...
The actual shape of the orbit of a planet around the sun is elliptical. The assumption made by the Newton regarding the shape of an orbit of a planet ...
The mass of a stone is very small, due to which the gravitational force produces a large acceleration in it. Due to large acceleration of stone, we se...
The coin reaches the ground first as compared to the piece of paper because it experiences lesser resistance from air than that felt by paper. If t...
Acceleration due to gravity of earth, g = = 9.8 m/s2 If mass of planet, m = And radius of planet, r = Acceleration due to gravity on the su...
In order to be able to notice the gravitational force of attraction between any two objects, at least one of the objects on the earth should have an e...
Gravitational force is given by: F = Distance between two masses is increased s.t new distance is D = 5d New gravitational force F1 = F Let o...
Acceleration due to gravity, g = Mass, M = 6 x 1024 kg Diameter = 12.8 x 103 km = 12.8 x 106 m Radius, R = = 6.4 x 106 m Gravitational con...
Kepler’s first law: The planets move in elliptical orbits around the sun, with the sun at one of the two foci of the elliptical orbit. This law means ...
(a) No, the value of acceleration due to gravity (g) is not constant at all the places on the surface of the earth. Since the radius of the earth is m...
(a) According to universal law of gravitation: Every body in the universe attracts every other body with a force (F) which is directly proportional to...
(a) The uniform acceleration produced in a freely falling body due to the gravitational force of the earth is called acceleration due to gravity of ea...
(a) The mass of a body is the quantity of matter contained in it. The SI unit of mass is kilogram (kg). (b) The weight of a body is the force with ...