Search our library of homework questions

Top answers

All subjects

All levels

How should I approach independent-research coursework essays?

Firstly, the text you choose to base your independent research on is very important. You should always choose one that you will enjoy analysing, one that definitely interacts with your chosen theory and o...

Answered by Wendy M. • English Literature tutor

3752 Views

What is mitosis?

Mitosis is the DNA replication stage in somatic cells (non sex cells). It involves replication of DNA and ONE division of DNA to produce two genetically identical daughter cells. The stages specific to mi...

Answered by Selina N. • Biology tutor

3839 Views

There are n sweets in a bag. 6 of them are orange, the rest are yellow. Hannah takes a random sweet, she eats the sweet and repeats again. The probability that hannah eats two orange sweets is 1/3. Show that n2 - n - 90 = 0.

The best way to think approach question is thinking of it like a tree diagram.We know there are n sweets in total. Therefore the probability of eating 1 orange sweet the first time is 6/n.The probability ...

Answered by Selina N. • Maths tutor

3193 Views

Hydrogen has a single proton and a single electron. Find the electric potential at a distance of 0.50 * 10^(-10) (m) from the proton.

Ve = kQ/r = ((8.99 * 10^9) * (1.6 * 10 ^-19))/(0.5 * 10^-10) = 28.77 = 29 V

Answered by Pablo M. • Physics tutor

2418 Views

A car of mass 1000 kg is travelling at 20 (m/s). The car crashes into a tree, and comes to a complete halt in 0.05s. Calculate the force acting on the car during the collision.

We are asked for the force acting on the car and we know from Newton's second law that F = ma Therefore, we need to calculate the acceleration first. We use a = (vf - vo)/(t - to) where vf = final speed, ...

Answered by Pablo M. • Physics tutor

3521 Views