<span>B. This is because P-waves is shorthand for Pressure-waves. Pressure waves compress and stretch along the direction of motion.</span>
Answer:light year is a measurement of distance. It is often used in special theory of relativity
Explanation:
Long lasting is thought important for sustainable development because it suggest the target of economic and sustainable development without displacing means and resources of the earth.
Explanation:
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Answer:
28.5 m/s
Explanation:
The speed has two orthogonal components, horizontal and vertical. To decompose the speed into these components we can use these trigonometric equations:
Vh = V * cos(a)
Vv = V * sin(a)
The forwards velocity is the horizontal component, so we use
Vh = V * cos(a)
Vh = 50 * cos(55)
Vh = 50 * 0.57
Vh = 28.5 m/s