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How important was Religion to the Upheavals of the 1640's?

Of the nearly 100,000 men who died fighting for Kirk, King or Parliament in conflict in the 1640’s all, in an age of deep and almost universal piety, were motivated, to a greater or lesser extent, by reli...

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Answered by William D. History tutor
2978 Views

Why dose sodium oxide have a high melting point?

Sodium oxide has a formula of Na2O. Since sodium is a metal and oxygen is a non metal, sodium oxide is an ionic species. Sodium will lose an electron to form a cation and oxygen will gain 2 ele...

Answered by Chemistry tutor
30837 Views

Explain the advantages of a reflecting telescope compared to a refracting telescope

Mirrors can be made much larger than lenses (meters compared to around 1m max). Mirrors do not produce chromatic aberration. Mirror glass does not need to be as high quality as lens glass. Mirrors produce...

Answered by Physics tutor
1876 Views

A light wave has a wavelength of 420nm, calculate the energy of this wave in joules.

E = hfE = energyh = planck's constant = 6.63 x 10-34f = wave frequency
c = fλf = c/λ
E = hc/λ
c = 3.0 x 108 The speed of light which in this case is the speed of the ...

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Answered by Nicholas D. Physics tutor
7012 Views

Describe the action of insulin for the control of blood glucose concentration

Insulin is made in the beta cells of the pancreas. They act on receptors on the target cells. This controls the uptake of glucose in the target cells by regulating the inclusion of channel proteins on the...

Answered by Biology tutor
2463 Views

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