Over a million students use our free study notes to help them with their homework
The magnesium ion is in group two of the periodic table, whereas sodium is in group one. This means that magnesium has one more proton than the sodium ion, so it has a more positive core. Both ions have t...
The white blood cells detect the foreign antigens on the cells surface. They then rapidly produce antibodies which match the antigens and attach onto them. This allows other white blood cells to engulf th...
The condition for this scenario is that perfect competition must hold, whereby there is free entry to and exit from the market, and perfect information is available to all firms.In the short run, if firms...
'Let those in power make no mistake about the mood of the people… never were the Russian people… so profoundly revolutionised by the actions of the government, for day by day, faith in the government is s...
Using the product rule (u'v+v'u, where u and v are the chosen substitutes) to find the first derivative will be dy/dx=x'=2xe^(-2x)+x^(2)e^(-2x)(-2)=2xe^(-2x)(x-x^2). This will give the d...
←
2055
2056
2057
2058
2059
→
Internet Safety
Payment Security
Cyber
Essentials