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Explain the difference between a battery and a cell

A cell is a single unit of a power supply which uses chemical energy to produce energy. A battery is a group of cells joined in series.

Answered by Cristina O. • Physics tutor

22968 Views

What is the difference between "ser" and "estar"?

The difference between these two verbs is best shown by examples.

Ser: It is used in the following context for the word being: "La manzana es verde" (The apple is green) This sh...

Answered by Cristina O. • Spanish tutor

2384 Views

Solve this pair of simultaneous equations to find x and y

(1) 2x - 5y = 11(2) 3x + 2y = 7-----------------------Multiply equation (1) by 3 & Multiply equation (2) by 2 to give equal values for x:(3) 6x - 15y = 33(4) 6x + 4y = 14-----------------------Take eq...

Answered by James B. • Maths tutor

4537 Views

How do you form the conditional tense?

To form the conditional tense in German, you need two parts: the auxiliary verb werden in the conditional and the infinitive. For example "Wenn ich Geld hätte, würde ich einkaufen gehen".Note: d...

Answered by Daina A. • German tutor

3705 Views

How do you form the imperfect tense?

To form the imperfect tense for regular verbs in French, all you have to do is take the "nous" form of the verb, take off the -ons ending and add the following endings according to the person: -...

Answered by Daina A. • French tutor

3186 Views