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Describe how you can distinguish between intrusive and extrusive igneous rocks?

Crystal size is used to distinguish between intrusive and extrusive igneous rocks. Intrusive rocks such as granite will have coarse crystals whereas extrusive rocks such as basalt will have fine glassy cr...

SS
Answered by Sian S. Geology tutor
12541 Views

‘Social conditions and freedoms were consistently poor and restrictive in the period 1855-1964.’ How far do you agree with this statement? (Russia period study)

Introduction: That social conditions and freedoms are to be considered ‘consistently’ poor and restrictive for Russian people is an apt reflection of the repressive governance of both the Tsars and Commun...

SG
Answered by Sophie G. History tutor
3918 Views

A student has a mass of 80kg. How much would the student weigh on the surface of the Moon?

The Moon has a mass, MM = 7.35 x 1022kgThe Moon has a radius, RM = 1.74 x 10m
We want to determine the gravitational constant for the Moon's surface to then calculat...

GB
Answered by Guy B. Physics tutor
2763 Views

Electrons moving in a beam have the same de Broglie wavelength as protons in a separate beam moving at a speed of 2.8 × 10^4 m/s . What is the speed of the electrons?

de Broglie wavelength formula:
λ = h/mv,
whereλ = wavelength,h = Planck's Constant = 6.626 x 10-34 Js,m = mass of object,v = object's velocity,
Mass of proton mp = 1.6...

HA
Answered by Haider A. Physics tutor
9987 Views

Find the general solution of the equation tan(2x + pi/2) = SQRT(3), giving your answer for x in terms of π in a simplified form.

Assume y = 2x + pi/2,
Since the period of 'tangent' is pi, the general solution of 'y' to valid the equation of tan(y) = SQRT(3) is the form of y = npi+pi/3 where 'n' is any positive or negative...

CH
Answered by Chunlong H. Maths tutor
4492 Views

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