A batter hits a baseball 1.0 meter above the ground at a 25° angle and an initial velocity of 45 m/s. Assume no air resistance. a. What is the ball’s height above the field and distance from home plate 1.0 seconds and 2.0 seconds after it was hit?

b. What is the ball’s velocity at 1.0 seconds and 2.0 seconds? Velocity is a vector quantity and you must determine the magnitude and direction of the ball.

c. The center field fence is 125 meters away and 3.0 meters high. Did the batter hit a homerun? Show your calculations. Assume the center fielder cannot catch the ball. (Get time in x-direction!)

What causes the formation of ocean currents?

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.

What happens when the vapor pressure of a liquid is equal to the external pressure?