Search our library of homework questions

Top answers

All subjects

All levels

A pendulum has a frequency of 0.80 Hz, calculate the periodic time of the pendulum.

You need to use the equation that relates frequency and period; period = 1/frequency

Then all you need to do is plug in the frequency to get the periodic time:

Answered by Mia V. • Physics tutor

16861 Views

Solve: 3(x - 2) = 21

First you look at BIDMAS, which determines the order in which functions are completed, [Brackets, Indices, Division, Multiplication, Addition, Subtraction], which says we deal with the brackets first, ...

Answered by Mia V. • Maths tutor

20574 Views

Explain why fluorine and chlorine are in the same group of the periodic table.

These elements are in the same group in the periodic table due to their electron configurations:

fluorine: 2, 7

chlorine: 2, 8, 7

They both have 7 electrons in...

Answered by Mia V. • Chemistry tutor

45820 Views

Expand and simplify (3x+2) (x-5)

We expand this term by term.

To make sure we expand every term, I use the beak method. To do this, draw 2 curves over the equation from the 3x to the

Answered by Dominic S. • Maths tutor

18939 Views

What is the subjunctive and when do I use it in Spanish?

While different tenses describe when an action happened, different moods describe how the speaker feels about the action. There are three moods in Spanish: the indicative (which will be the tense you norm...

Answered by Ana-Cristina J. • Spanish tutor

3222 Views