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Flura [38]
3 years ago
11

How does the table show that the balloon went downwards ?

Physics
1 answer:
o-na [289]3 years ago
6 0

Answer:

I am going to guess it shows that the balloon is going downwards because the speed of rise is in the negatives for the last 2.

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800 has 1 significant digit.
serg [7]

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yes, 800 has 1 significant digit

neither leading zero nor trelling zero are significant figure except when there's a decimal point

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The Pioneer 10 spacecraft has which of the following on board?
astra-53 [7]

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The Hubble telescope,which is taking detailed pictures of the universe.

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7 0
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Which statement describes the movement of carbon as it cycles through the environment?
frosja888 [35]

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7 0
2 years ago
How am I supposed to solve this?
RSB [31]

Answer:

4.02 km/hr

Explanation:

5 km/hr = 1.39 m/s

The swimmer's speed relative to the ground must have the same direction as line AC.

The vertical component of the velocity is:

uᵧ = us cos 45

uᵧ = √2/2 us

The horizontal component of the velocity is:

uₓ = 1.39 − us sin 45

uₓ = 1.39 − √2/2 us

Writing a proportion:

uₓ / uᵧ = 121 / 159

(1.39 − √2/2 us) / (√2/2 us) = 121 / 159

Cross multiply and solve:

159 (1.39 − √2/2 us) = 121 (√2/2 us)

220.8 − 79.5√2 us = 60.5√2 us

220.8 = 140√2 us

us = 1.115

The swimmer's speed is 1.115 m/s, or 4.02 km/hr.

7 0
3 years ago
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