Top answers

Explain why an atom has no overall charge.

An atom is comprised of protons, neutrons, and electrons. Protons have positive charge and the number of protons is dictated by the proton number, which is the same as the number of electrons, which have neg...
JC
Answered by James C. • Chemistry tutor
23539 Views

To what extent was the ideological divide between the west and the USSR responsible for the development of the Cold War?

This essay will argue that whilst the ideological divide was extremely significant, it was not the sole responsible factor in the development of the cold war. Arguments that support it being responsible: -Fo...
HN
Answered by Halima N. • History tutor
3808 Views

If z=4+i, what is 1/z? (in the form a+bi)

1/z =1/(4+i) Multiply both top and bottom by the complex conjugate, z* = 4 - i, 1/z = (4-i)/((4+i)(4-i)) = (4-i)/(16+4i-4i-i 2 ) = (4-i)/17 ans: 4/17 - i/17
RH
3814 Views

Anouk, Beth and Carlin share £48 between them. Beth gets 3/8 of the money. Anouk and Carlin share the remaining money between them, by the ratio 3:2. How much money does Carlin get?

Beth gets: £48 x 3/8 = £18 The remaining money is: £48 - £18 = £30 ( Alternate method: £48 x 5/8 = £30. This eliminates the need for the first step) The ratio is 3:2 so this is the same as fractions of (3+2=...
RH
Answered by Rachel H. • Maths tutor
3803 Views

When do we use haben and when sein with the perfect.

As a general rule, verbs that in the present have an akkusative object form the perfect with haben. The rest with sein. For example: The table breaks = Der Tisch bricht. [ Subject Nominative: tisch, verb: br...
AT
Answered by Antonis T. • German tutor
2942 Views