A baseball is struck by a batter at an angle such that it reaches its maximum height at the location of the pitcher – and just grazes the top of the pitcher’s head (at an elevation of 1.50m above the launch point of the baseball). The pitcher is a horizontal distance of 20.0m from the point at which the ball was struck. What was the launch speed for the baseball?
A. 37 m/s
B. 36m/s
C. 51m/s
D. 27m/s
A. 37 m/s
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The ________ tides have a large change from high to low, near new and full moons
Fill in the blank(s) with correct word
Three point charges are placed on the x-axis. A charge of +2.0 ?C is placed at the origin, -2.0 ?C to the right at x = 50 cm, and +4.0 ?C at the 100 cm mark
What are the magnitude and direction of the electrostatic force that acts on the charge at the origin? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) What will be an ideal response?
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Answer the following statement true (T) or false (F)
What is the distinguishing characteristic of what we call ordinary or baryonic matter?
A) It emits a great deal of light. B) It can attract other matter through the force of gravity. C) It is made of subatomic particles that scientists call WIMPs. D) It consists of atoms or ions with nuclei made from protons and neutrons.