Please help need asap!! Salt water is a solution of table salt (the solute) and water (the solvent). Describe a laboratory
procedure that could be used to determine the
concentration of salt in a sample of salt water.
Indicate all measurements that must be made.
(Hint: Remember that the concentration of a
solution can be expressed as a ratio of the mass
of the solute to the mass of the solution.)

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud

What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s