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Well, the good people of UKL think, en masse, that the spelling is “en masse.” That shed any light on the meaning of the saying…didn’t think it would!
This idea is also suggested similarly when the ‘path’ had ‘disappeared into a mass of nettles and brambles’. Once again, this suggests the way the smaller areas of the garden – ‘nettles and brambles’ can combine to fo...
Original post by SherlockHolmes Could someone give me a good definition of relative atomic mass and relative isotopic mass please?
A particle of mass 0.3 kg lies on a smooth plane inclined at an angle α to the horizontal, where tanα=3 4 . The particle is held in equilibrium by a horizontal force of magnitude Q newtons. The line of action of this ...
Write your answer to each question in the space provided. If additional space is required, use the lined page(s) at the end of this booklet. The question number(s) must be clearly shown.
Okay, so I'm currently doing an investigation on determining the Young Modulus of a metal and for the evaluation it says that I need to detail the percentage uncertaintity for F - which is aquired from the F = W = mg,...
A has a mass of 7kg and B has a mass of 3kg. The particles are released from rest with the string taut, and A falls until it strikes the ground at a speed of 5.9ms-1. Assume that A does not rebound after hitting the g...
I understand that the mass of carbon-12 has been defined 12 u. However, protons and neutrons have a relative mass of 1 each and there are 6 protons and 6 neutrons in a carbon-12 atom which makes a relative atomic mass...
The mass of a retort stand and clamp is 1.6 kg and their combined centre of mass lies along the line XY. A spring which has a negligible mass is attached to the clamp and supports a mass of 0.90 kg, as shown in the diagram.
Naturally, a normal hydrogen atom has an odd mass number, so it has a property called 'spin', meaning it can be detected by proton NMR. A deuterium atom (an isotope of hydrogen) has an even mass number, so it doesn't ...
