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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
2810 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
10068 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
4562 Views

Assess the policies that could be used to reduce the UK’s balance of trade deficit

A country is in a current account deficit when it spends more than it sells, i.e. when the value of its imports is greater than the value of its exports. There are three main ways a country's current acco...

NT
Answered by Naveed T. Economics tutor
3932 Views

Tom drink drives two days a week, the chance of him being caught per day is 1 in 100. What is the chance he will not be driving after a) one week? b) one year?

a) In one week he will drive drive twice, each day the probability of getting caught is 1/100 and not getting caught is 99/100. using a probability tree diagram, we can see there is only one possible outc...

NB
Answered by Nils B. Maths tutor
3273 Views

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