Weight in grams

Answer 1

The 10p coin is minted from an alloy of 75% copper and 25% nickel. The 1968 version of the coin weighed 11.31 grams and had a diameter of 28.50 millimetres. In 1992 a smaller version weighing 6.50 grams and with a diameter of 24.50 millimetres was introduced. Apart from the reduction in size, the coin's design remained essentially unchanged. This downsizing took place a year after a similar reform of the five pence coin, and the new ten pence was in fact only a gram heavier and half a millimetre larger than the previously withdrawn five pence. All the older 10p and florin coins were withdrawn from circulation and demonetised from 1 July 1993. With the earlier withdrawal of the 5p and shilling coins, the 10p was the last of the "historical" coin sizes to be withdrawn.


Current British general circulation coins are dimensioned as follows - 1 Penny - 20.32 mm diameter, 1.65 mm thick, weigh 3.56 grams and are made from copper plated steel. The edge is plain. 2 Pence - 25.9 mm diameter, 2.03 mm thick, weigh 7.12 grams and are made from copper plated steel. The edge is plain. 5 Pence - 18 mm diameter, 1.7 mm thick, weigh 3.25 grams and are made from 75% copper and 25% nickel. The edge is milled. 10 Pence - 24.5 mm diameter, 1.85 mm thick, weigh 6.5 grams and are made from 75% copper and 25% nickel. The edge is milled. 20 Pence - 21.4 mm diameter, 1.7 mm thick, weigh 5 grams and are made from 84% copper and 16% nickel, and are seven sided. The edge is plain. 50 Pence - 27.3 mm diameter, 1.78 mm thick, weigh 8 grams and are made from 75% copper and 25% nickel, and are seven sided. The edge is plain. 1 Pound - 22.5 mm diameter, 3.15 mm thick, weigh 9.5 grams and are made from 70% copper, 24.5% zinc and 5.5% nickel. The edge is milled with incuse lettering or ornamentation. 2 Pound - 28.4 mm diameter, 2.5 mm thick, weigh 12 grams and are bimetal made from 76% copper, 20% zinc and 4% nickel in the outer ring, and the centre is 25% nickel and 75% copper. The edge is milled with incuse lettering. 5 Pound - 38.61 mm diameter, 2.5 mm thick, weigh 28.28 grams and are made from 75% copper and 25% nickel. The edge is milled with an inscription. Intended as a souvenir, but occasionally seen in circulation.

Answer 2

Usually, here, all of us get confused. Weight is the force with which the earth attracts the body. Gram is the unit of mass in FPS system of units. Now a days in SI units we use kg as the unit of mass.

Physics relates weight W and mass M by the expression W = M g. Here g is the acceleration due to gravity. SO if one is having 50 kg ie 50000 g mass, then his weight will be got after multiplying this by 9.8 m/s^2.

But the same weight could be expressed as 50 kg wt. Here kg wt is another convenient unit which equals to g newton. Hence instead saying 50 x 9.8 newton it will be more easier to say 50 kg wt.

So the dialogue goes this way.

"Hello, what is your weight?"

"I am 63 kg."

The answerer just stops with kg but it is understood that he means 63 kg wt. Because weight is already there in the questioner's statement.

Answer 3

Density is the mass per unit volume and is therefore usually expressed as grams per cubic centimeter. It varies from substance to substance, and is affected by temperature and pressure.

Answer 4

of what?