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What is the maximum speed of an electron emitted from a metal surface with a threshold frequency of 5.706*10^(14) by light with a wavelength of 350nm?

In order to determine the maximum speed of an emitted electron, we must first find it's kinetic energy from the energy of an incident photon and the work function of the metal surface (the minimum energy req...
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Answered by Mattea G. • Physics tutor
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If the area of a sector of a circle is 3*pi cm^2 and the circle has a radius of 6cm, what is the angle of the sector?

The total area of the circle is pi*r^2 = 36 piThis means that the sector is 1/12th of a circle.A circle has 360 degrees and so the angle of the sector wil be 360/12 = 30 degrees.
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Answered by Cameron A. • Maths tutor
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What are the social consequences of erosion to communities living on the coast?

Roads may become unstable or dangerous near cliff edges, the building of safer ones inland can increase traffic due to large, slow vehicles going to or from the work site. This may increase noise and air pol...
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Answered by Cameron A. • Geography tutor
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If a car has a mass of 670kg and has a driving force of 1200N and a force from resistance of 300N, what is the acceleration of the car? What is the speed of the car after 5 seconds?

The force of resistance should be taken away from the driving force to result in a total force of 900N driving forwards.Then use F=ma, rearranged so that a = F/m, to result in an acceleration of 1.34 m/s^2. ...
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Answered by Cameron A. • Physics tutor
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Explore how the theme of jealousy is portrayed in Othello

Theatre in Jacobean England acted as a form of didactic allegory, namely a means of teaching the public social lessons. In the case of William Shakespeare's 1605 play Othello , the play emphasises the import...
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