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IrinaK [193]
3 years ago
7

What's the hikers average velocity during part D of the hike?

Physics
1 answer:
Vikki [24]3 years ago
6 0

your answer is D. 8km/h west please mark me brainliest and ask for help if you have any more problems

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Air is being blown into a spherical balloon at the rate of 1.68 in.3/s. Determine the rate at which the radius of the balloon is
NISA [10]

Answer: 0.006in/s

Explanation:

Let the rate at which air is being blown into a spherical balloon be dV/dt which is 1.68in³/s

Also let the rate at which the radius of the balloon is increasing be dr/dt

Given r = 4.7in and Π = 3.14

Applying the chain rule method

dV/dt = dV/dr × dr/dt

If the volume of the sphere is 4/3Πr³

V = 4/3Πr³

dV/dr = 4Πr²

If r = 4.7in

dV/dr = 4Π(4.7)²

dV/dr = 277.45in²

Therefore;

1.68 = 277.45 × dr/dt

dr/dt = 1.68/277.45

dr/dt = 0.006in/s

7 0
3 years ago
Want brainly?? Answer this question correctly and I got you.
matrenka [14]

Answer:

divergent

Explanation:

That is when two plate boundaries slide apart

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Picking up a hot coal is an example of what type of heat transfer?
Zanzabum

That would be a conduction.

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O Which two elements will be the most alike and why?
Pavel [41]
C. Because they are in the same group, so they have the same number of valence (outer) electrons
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Compare and contrast both densely-ionizing and sparsely-ionizing radiation.
kherson [118]

Explanation:

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I hope you find this information useful and interesting! Good luck!

7 0
3 years ago
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