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A particle of mass 5kg is acted upon by a force of 400N for a distance of 20m along the x axis. What is its final velocity if it is initally at rest?

The work done by a force on a particle is: Work done = Force x Displacement.The energy of a particle is given by the sum of its potential and kinetic energies.As the particle does not gain or lose any hei...

Answered by Luke T. • Physics tutor

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After a trip to Spain you decided to write a travel article for your school magazine. What advice would you give to anyone who wants to go to Spain for a weekend break?

Primero, necesitas pensar en lo que quieres llevar en tu maleta. Yo diría que valga la pena mirar la previsión del tiempo. ¿Qué tiempo hace en la ciudad que visitas? ¿Hace calor o frío? Con esta decisión ...

Answered by Giovanna G. • Spanish tutor

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Solve the equation (x+2)/(x-3)=(x-6)/(x+1) for x.

We need to multiply both sides by the denominator (the bottom of the fraction) in both fractions so we get:(x+2)(x-3)(x+1)/(x-3)=(x-6)(x-3)(x+1)/(x+1)Now, we can see that we can cancel each fraction to ge...

Answered by Tom H. • Maths tutor

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What is a control in an experiment?

A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of ...

Answered by Alessandra P. • Biology tutor

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What is meant by a reducing agent?

A reducing agent is oxidized. This means that it donates electrons to another substance, thus reducing it. Fe2+ to Fe3+ represents oxidation. Fe2+ could be a reducing agent.

Answered by Jools G. • Chemistry tutor

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