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Physics
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What is refraction?

Refraction is what occurs when light passes from one medium to another (for example, air to water) and because of the difference in the medium, the speed changes. This change in speed of light causes it t...

Answered by Tanika D. Physics tutor
1706 Views

A force of 13.8 N was used to lift a mass 30 cm vertically through a liquid. Calculate the work done in lifting the mass, stating the correct units.

Either from memory or using the formula booklet provided we know Work Done = Force x Distance Moved (in the direction of the force). Therefore we can use the values given and this formula to workout our a...

Answered by Harry G. Physics tutor
3083 Views

What is the difference between displacement and distance?

Let's suppose tomorrow we want to go to the Moon. There's many different paths that we can choose from to get there: we can depart from Earth, go around the Sun and land on the Moon or we can go all the w...

Answered by Elvira C. Physics tutor
2081 Views

What is the potential?

I already answered this question orally during the interview, for some reason it didn't send before.

Answered by Lucia C. Physics tutor
1087 Views

what is ohm's law?

Ohms law establishes a relationship between resistance, voltage and current, saying that V/I = R.

Answered by Aditya M. Physics tutor
1826 Views

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