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White raven [17]
3 years ago
7

Runner A had the highest velocity. Runner C had the lowest velocity. Runners A and B started at the same position, but runner C

started ahead of runners A and B. What did you include in your response? Check all that apply.
Runner A had the highest velocity.
Runner C had the lowest velocity.
Runners A and B started at the same position.
Runner C started ahead of runners A and B.
Physics
2 answers:
galina1969 [7]3 years ago
6 0

Answer:

A. C. and D.

Explanation:

Elan Coil [88]3 years ago
5 0

Answer:

A, C, and D

Just confirming

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An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the radius were changed to 1000 m, but the sp
laila [671]

Answer:

The centripetal acceleration changed by a factor of 0.5

Explanation:

Given;

first radius of the horizontal circle, r₁ = 500 m

speed of the airplane, v = 150 m/s

second radius of the airplane, r₂ = 1000 m

Centripetal acceleration is given as;

a = \frac{v^2}{r}

At constant speed, we will have;

v^2 =ar\\\\v = \sqrt{ar}\\\\at \ constant\ v;\\\sqrt{a_1r_1} = \sqrt{a_2r_2}\\\\a_1r_1 = a_2r_2\\\\a_2 = \frac{a_1r_1}{r_2} \\\\a_2 = \frac{a_1*500}{1000}\\\\a_2 = \frac{a_1}{2} \\\\a_2 = \frac{1}{2} a_1

a₂ = 0.5a₁

Therefore, the centripetal acceleration changed by a factor of 0.5

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Im not really sure but Id say weather .

Explanation:

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