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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, M M = 7.35 x 10 22 kgThe Moon has a radius, R M = 1.74 x 10m We want to determine the gravitational constant for the Moon's surface to then calculate the weight of the student using Newt...
GB
Answered by Guy B. • Physics tutor
3400 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 m p = 1.6726219 × 10 -27 kg,Velocity of proton ...
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Answered by Haider A. • Physics tutor
10710 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 = n pi+pi/3 where 'n' is any positive or negative integer and...
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Answered by Chunlong H. • Maths tutor
5128 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 account...
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Answered by Naveed T. • Economics tutor
4465 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 outcome...
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Answered by Nils B. • Maths tutor
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