How do oceanographers define salinity? a- number of grams of chlorine per liter of water. b- number of milligrams of dissolved soduim per milliliter of water. c- number of grams of dissolved sulfur salt per kilogram of water. d- number of grams of salt per kilogram of water

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?