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7nadin3 [17]
3 years ago
5

During summer break, Jamie's family went camping in the mountains. There were no roads to their camp, 8 miles away, and it took

them about 4.5 hours to reach the campsite on foot. Did Jamie's family stop to rest during the trip? How can you tell from the data?
A) No. They continued moving but their speed varied.
B) Yes. After 1.5 hours, there is no change in position for 30 minutes.
C) No. They continued moving, although they also slowed down continuously during the trip.
D) Not really. They did stop, but that was only when they reached the campsite at distance equals 0.
Physics
2 answers:
liraira [26]3 years ago
5 0

The Answer is B

hope this helps

Rama09 [41]3 years ago
4 0

Answer:

B)Yes. After 1.5 hours, there is no change in position for 30 minutes.

Explanation:

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The frequency of a person's pendulum is 0.3204 Hz when at a location where g is known to be exactly 9.800 m/s^2.
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Answer:

A) g = 9.751 m/s², B)       h = 2.573 10⁴ m

Explanation:

The angular velocity of a pendulum is

           w = √ g / L

Angular velocity and frequency are related.

          w = 2π f

          f = 1 / 2π √ g / L

A) with the initial data we can look for the pendulum length

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The length of the pendulum does not change, let's look for the value of g for the new location

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         g = 9.751 m/s²

B) The value of the acceleration of gravity can be found with the law of universal gravitation

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         h = (6.395726 -6.37) 10⁶

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