Top answers

Name the four fundamental forces.

Gravitational, electromagnetic, weak and strong.
EH
Answered by Emily H. • Physics tutor
2440 Views

What are the limits of an inverse tan graph.

pi/2 and -pi/2
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Answered by Emily H. • Maths tutor
3963 Views

How does the reactivity change down Group 1 elements, and why?

The reactivity increases. Group 1 are the alkali metals so they react by losing their valence electrons. Caesium is more reactive because it gives up its electrons more readily. It has more inner shells so i...
EH
Answered by Emily H. • Chemistry tutor
3771 Views

What causes or reduces resistance in a material?

Resistance can be thought of as the amount of distruption to the flow of electrons. If we look at the equation for resitivity:R=kl/A,where k is the resistivity of the material (and is dependant on the materi...
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Answered by Daniel G. • Physics tutor
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Raúl sent an e-mail to his friend Silvia with some tips for her trip to London. Unfortunately, the email had some problems when sent and consequently, some words disappeared. Help Silvia understanding the tips for her trip by completing the missing words.

Querida amiga: Estoy muy contento (adjetive) de que hayas decidido visitar la ciudad de Londres. El tiempo por aquí es bastante lluvioso (weather condition), pero cuando sale el sol (name), se convierte en u...
CV
Answered by Carolina V. • Spanish tutor
2240 Views