What is the gain in GPE when a brick of 2.00 kg is lofted up by 11.5 m?

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Which situation will produce the greatest change of momentum

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.