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melisa1 [442]
3 years ago
13

an asteroid flies close to the earth. gravity does what? A.repels the asteroid away from the earth. B. attracts the asteroid and

the earth to each other. C. makes the asteroid spin rapidly. D. causes the asteroid to explode.
Physics
1 answer:
Marysya12 [62]3 years ago
4 0
Due to the gravitational pull of earth the asteroid would be pulled towards earth, so the answer is B.
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Autism spectrum disorder is marked by all but which of the following categories of symptoms?
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It’d be B: severe depressive symptoms
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2 years ago
Two distinct coplanar lines that do not intersect are known as
elena55 [62]

Answer:

Skew Lines

Explanation:

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7 0
3 years ago
A metal ball attached to a spring moves in simple harmonic motion. The amplitude of the ball's motion is 11.0 cm, and the spring
german

Answer:

a)0.674 kg b) 2.2 s c) 0.9 m/s²

Explanation:

The amplitude of the ball (xo) = 11.0cm, half way between its equilibrium point its maximum displacement x = 11 cm / 2 = 5.5 cm = 5.5 / 100 in meters = 0.055 meters, speed at this point = 27.2 cm /s = (27.2 / 100) in m/s = 0.272 m/s,

spring constant K = 5.5 N/m

a) The mass of the ball (m) can be calculated using the formula below

v =√ (x²o - x²)K/m

make m subject of the formula

v² = (xo² - x²) K/m

m = K ( xo² - x²) / v²

m = 0.674kg

b) The period of the oscillation can be calculated by the following formula

T = 2π√ (m /K)

substitute the values into the formula

T = 2 × 3.142 × √ (0.674/ 5.5) = 2.2s

c) The maximum acceleration of the ball which occurs at the maximum displacement of the ball can be calculated by the following formula

a = K / m × x ( maximum displacement of the body) = 5.5 / 0.674 × 0.11 = 0.9 m/s²

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True or false electrons are a lot lower in mass than protons
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True. The mass of an electron is about 1/2000 amu whereas the mass of a proton is 1 amu.
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4 years ago
Read 2 more answers
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