You are asked to determine the density of a liquid. what lab equipment is most to find density of the liquid?

Which one of the following research methods can show cause and effect

Give an example in which the electrical energy changes to light energy

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.