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3 years ago

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Which of these binary systems is most likely to contain a black hole?A.An x-ray binary containing an O star and another object o

f equal massB.A binary with an X-ray bursterC. An X-ray binary containing a G star and another object of equal mass

1 answer:

STALIN [3.7K]3 years ago

5 0

Brain signals are converted

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_______is used as a magnifying glass to read very small print.

Alexus [3.1K]

Answer:

The answer is B

Explanation:

Concave lens

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2 years ago

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At what distance above the surface of the earth is the acceleration due to the earth's gravity 0.855 m/s2 if the acceleration du

natulia [17]

Given: Normal pull of gravity g = 9.8 m/s²;

g = 0.855 m/s² (at a certain distance)

Universal gravitational constant G = 6.67 x 10⁻¹¹ N.m²/Kg²

Mass of the Earth Me = 5.98 x 10²⁴ Kg

Radius r = ?

g = GMe/r²

r = √GMe/g

r = √(6.67 x 10⁻¹¹ N.m²/Kg²)(5.98 x 10²⁴ Kg)/(0.855 m/s²)

r = 2.16 x 10⁷ m or

r = 21,610 Km

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3 years ago

Please help. Brainliest will be given! 25 points. Show all work.

Drupady [299]

Explanation:

Given:

v₀ₓ = 15 m/s cos 20° = 14.10 m/s

aₓ = 0 m/s²

v₀ᵧ = 15 m/s sin 20° = 5.13 m/s

aᵧ = -9.8 m/s²

t = 1.5 s

Find: Δx and Δy

Δx = v₀ₓ t + ½ aₓ t²

Δx = (14.10 m/s) (1.5 s) + ½ (0 m/s²) (1.5 s)²

Δx = 21.1 m

Δy = v₀ᵧ t + ½ aᵧ t²

Δy = (5.13 m/s) (1.5 s) + ½ (-9.8 m/s²) (1.5 s)²

Δy = -3.33 m

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4 years ago

The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed

MaRussiya [10]

Answer:23hz

Explanation:

6 0

3 years ago

Write the ordered pair that represents vec yz .Then find the magnitude of vec yz Y(- 4, 12), (1, 19)

sladkih [1.3K]

Answer with Explanation:

We are given that

Y=(-4,12)

Z=(1,19)

We have to find the ordered pair which represents the vector YZ and magnitude of vector YZ.

Vector YZ=Z-Y=<1,19>-<-4,12>

Vector YZ=<5,7>

Magnitude of vector r

$r=xi+yj$

$\mid r\mid=\sqrt{x^2+y^2}$

Using the formula

$\vec{YZ}=\sqrt{5^2+7^2}$

$\vec{YZ}=\sqrt{25+49}=\sqrt{74} units$

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3 years ago