7,000 litres of water is pumped out of a tank in 42 minutes. How many litres could be pumped out in one hour at the same rate? (a) 1,000 litres (b) 1,670 litres (c) 10,000 litres (d) 12,000 litres (e) 60,000 litres

Which situation will produce the greatest change of momentum

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47