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What Under Pennsylvania law a competent observer must be on board when a person is being towed behind a vessel. Which of these describes a competent observer?
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∙ 7y ago
A competent observer in Pennsylvania is someone who is at least 12 years old, understands their duties, is attentive the entire time the person is being towed, and can communicate with the operator and the person being towed effectively.
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The Doppler effect says that if v0 is greater then vs then an observer will hear a higher pitch in front of source does that mean if vs is greater v0 an observer will hear a higher pitch BEHIND source?
No, if the speed of the observer (v0) is greater than the speed of the source (vs), the observer will hear a higher pitch as they move towards the source. However, if the speed of the source is greater than the speed of the observer, the observer will hear a lower pitch as they move towards the source.
What are the parts of convex mirror?
A convex mirror consists of a reflective surface that curves outward, away from the observer. It also has a focal point located behind the mirror and a center of curvature, which is the midpoint of the mirror's curvature.
Where does your image appear when you look in a mirror?
The image that you see when you look in a mirror is a reflection of the light that bounces off of you and back into your eyes. This creates the illusion that your image is located behind the mirror, when in reality it is in front of it.
An observer stands 26m behind a marksman practicing at a rifle range The marksman fires the rifle horizontally the speed of the bullet is 790 ms air temperature is 20C How far does each rilfe travel?
Assuming there is no air resistance, the horizontal distance the bullet travels can be calculated using the formula d = v * t, where v is the speed of the bullet (790 m/s) and t is the time it takes for the bullet to reach the observer. The time can be found using the formula t = D / v, where D is the distance between the marksman and the observer (26 m). Substituting the values, we get t = 26 m / 790 m/s, which is approximately 0.033 seconds. Thus, the bullet travels 790 m/s * 0.033 seconds = 26 meters.
What happens to the frequency of the sound as the train draws closer What do you hear?
As the train draws closer, the frequency of the sound you hear increases. This is due to the Doppler effect, where the perceived frequency of a sound source changes relative to an observer's position. The sound waves are compressed in front of the moving train and stretched behind it, affecting the pitch you hear.
How does the frequency measured in front of the source appear to the observer compared to the frequency measured from behind?
The frequencies are the same, unless the source is moving relative to the observer.
Does the Doppler Effect mean that an observer ahead of a train hears the train at a higher frequency sound than an observer behind the train?
Yes that is the case.
What is Pennsylvania's time compared with Greenwich England?
Pennsylvania is 5 hours behind Greenwich.
What is the time difference between Anchorage and Pennsylvania?
Anchorage, Alaska is 4 hours behind Pennsylvania during Daylight Saving Time, and 3 hours behind Pennsylvania when Daylight Saving Time is not in effect.
What is legal when towing a person on water skis or similar device behind a vessel?
being towed behind a PWC with an operator and an observer on board
Is pennsylvania ahead or behind time in phoenix?
Ahead
Who is the speaker in Abandoned Farmhouse poem?
The speaker in the poem "Abandoned Farmhouse" by Ted Kooser is a detached observer who describes the scene of an empty farmhouse and speculates about the lives of its former inhabitants. The speaker reflects on the remnants left behind and the sense of loneliness and neglect in the abandoned dwelling.
What is required when a skier is being towed behind a motorboat or PWC?
an observer or a wide-angle rearview mirror
The Doppler effect says that if v0 is greater then vs then an observer will hear a higher pitch in front of source does that mean if vs is greater v0 an observer will hear a higher pitch BEHIND source?
No, if the speed of the observer (v0) is greater than the speed of the source (vs), the observer will hear a higher pitch as they move towards the source. However, if the speed of the source is greater than the speed of the observer, the observer will hear a lower pitch as they move towards the source.
What is the time difference between Pennsylvania and iceland Please include whether Iceland is hours behind or ahead of Pennsylvania.?
Ice land is behind pennsylvnia in time, and all the hot girls go to pennsylvania. And there are topless beaches and lots of strip clubs.
When it is 3 pm in Hawaii what time will it be in Pennsylvania?
When it is 3 pm in Hawaii, it will be 9 pm in Pennsylvania. Hawaii is 6 hours behind Pennsylvania.
What BEST describes the concept behind Web 2.0?
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