Answers: 3
Physics, 22.06.2019 14:00
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
Answers: 3
Physics, 22.06.2019 16:30
Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
Physics, 22.06.2019 16:30
In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
Answers: 3
Physics, 22.06.2019 16:30
He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is
Answers: 2
Question 4 A car of mass 820 kg has a maximum power of 30 kW and moves against a constant resistance...
Physics, 26.06.2019 13:20
Physics, 26.06.2019 13:20
Physics, 26.06.2019 13:20
Geography, 26.06.2019 13:20
Chemistry, 26.06.2019 13:20
History, 26.06.2019 13:20
History, 26.06.2019 13:20
Computers and Technology, 26.06.2019 13:20
Mathematics, 26.06.2019 13:20
Mathematics, 26.06.2019 13:20