Question
When did Henry Cavendish report the measurement of the
gravitational constant with the mass and density of the Earth?Solution
Henry Cavendish:- β’ He was a brilliant scientist who made significant contributions to chemistry and physics. β’ He discovered hydrogen in 1766 and measured the gravitational constant in 1798. β’ His work on the gravitational constant was particularly important, as it provided the first accurate measurement of the force of gravity between masses in the laboratory. β’ He reported the measurement of the gravitational constant with the mass and density of the Earth in June 1798. His results were published in a 57-page paper in the Transactions of the Royal Society entitled "Experiments to Determine the Density of the Earth."
A and B can complete a task together in 10 days, while B alone takes 20 days to finish it. A began working alone and left after βxβ days, after whic...
A, B and C can complete the whole work in 20 days. A starts the work and works for ‘x’ days while B and C complete the remaining 3/5 of the ...
126 unit of work can be completed by P alone in 21 days. P started working alone and joined by Q after 10 days such that they completed the remaining wo...
A and B together can complete a piece of work in 12 days. B and C together can complete the same work in 15 days, and A and C together can complete it i...
Komal and Seema individually can complete a task in β3aβ hours and β6aβ hours respectively. If they together can complete half of the work in 6 ...
A work can be completed by βAβ and βBβ, alone in 10 days and 12 days, respectively. Find the number of days taken by βCβ to complete the sam...
A buffalo alone can plough field βAβ in 10 days. A Bull alone can plough the field βAβ in 16 days. Find the number of days taken by 1 bulls and ...
βAβ and βBβ can complete a certain work in 12 days and 24 days, respectively. They started working together and worked till completion of the wo...
Ganga, Yamuna &Saraswati can complete a piece of work in 30, 40 & 60 days respectively. All 3 of them started working together and after 4 days,...
Virat can do a piece of work in 26 days and Sachin can do the same work in 39 days. If Virat works for 5 days and got Rs. 3000, and the remaining work w...