A coal fired electric generating plant burns 5000kg of coal every minute. How much of that coal actually goes into producing electric energy ?

True or false a high force means an object is moving fast100 points!

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.