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!)

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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