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Elden [556K]
3 years ago
12

A satellites are placed in a circular orbit that is 2.44 × 107 m above the surface of the earth. What is the magnitude of the ac

celeration due to gravity at this distance?
Physics
1 answer:
Vikki [24]3 years ago
7 0
2.440
X 107. The magnitude
------------ Is 261.080 plz
17.080. Make the
00.000. Brainliest
244.000
----------------
261.080
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The speed of sound is 344 m/sec when the air is 20 degrees Celsius how far is the source of the sound if it takes 8 seconds for
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Answer: 2752 m

Explanation:

344*8=

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2 years ago
Molecules can be made of atoms of__?
defon

the third answer is right.

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Two astronauts on opposite ends of a spaceship are comparing lunches. One has an apple, the other has an orange. They decide to
lbvjy [14]

Answer:

Explanation:

We shall consider direction towards left as positive Let the required velocity be v and let v makes an angle φ

Applying law of conservation of momentum along direction of original motion

m₁ v₁  - m₂ v₂ = m₂v₃ - m₁ v₄

0.132 x 1.25 - .143 x 1.14 = 1.03 cos43 x .143 - v cos θ

v cos θ = .8

Applying law of conservation of momentum along direction perpendicular to direction of original motion

1.03 sin 43 x .143 = .132 x v sinθ

v sinθ = .76

squaring and adding

v² = .76 ² + .8²

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Tan θ = .76 / .8

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6 0
3 years ago
Young's Modulus refers to changes in the: a- Volume b- Length c- Body layers
bekas [8.4K]

<u>Answer:</u> The correct answer is Option b.

<u>Explanation:</u>

Young's Modulus is defined as the ratio of stress acting on a substance to the amount of strain produced.

Stress is defined as force per unit area and strain is defined as proportional deformation in a material.

The equation representing Young's Modulus is:

Y=\frac{F/A}{\Delta l/l}=\frac{Fl}{A\Delta l}

where,

Y = Young's Modulus

F = force exerted by the weight

l = length of wire

A = area of cross section

\Delta l = change in length

Hence, the correct answer is Option b.

6 0
3 years ago
A piano mover raises a 1000-n piano at a constant speed using a very light rope in a frictionless pulley system, as shown in the
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Here As we can see the figure that the end of the rope is pulled by some force F

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Now for constant velocity of the piano we will say

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since velocity is constant so acceleration must be ZERO

so here we have

2F - mg = 0

as we know here that

mg = 1000 N

so we will have

2F - 1000 = 0

F = 500 N

so here force must be 500 N

5 0
3 years ago
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