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hoa [83]
3 years ago
15

Which of the following statements about planetary satellites is true? all planetary satellites are as large as our moon or bigge

r. all planetary satellites are relatively small, typically having a radius of no more than 20 kilometers. planetary satellites vary greatly in size, but none are larger than any of the planets in the solar system. planetary satellites vary greatly in size, from very small, to some that are larger than some planets.
Physics
2 answers:
Illusion [34]3 years ago
6 0
<span> planetary satellites vary greatly in size, from very small, to some that are larger than some planets.</span>
Anvisha [2.4K]3 years ago
3 0

Answer:

Planetary satellites vary greatly in size, from very small, to some that are larger than some planets.

Explanation:

Natural sateletes are celestial bodies that orbit other larger celestial bodies. The solar system has several satellites, the best known being the moon, the natural satellite of planet Earth. The planets of the solar system have different sizes, just like the natural satellites. Thus, there are satellites larger than planets. The moon itself is a larger satellite than some planets, like Mercury.

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A 1000 kg elevator is accelerated upward at a rate of 0.70 m/s2. What is the tension in the cable pulling the elevator upward wh
Masteriza [31]

Answer:

Tension is also known as Force...

and Force is mass× acceleration.

so....1000×0.70=700N

5 0
4 years ago
Read 2 more answers
A skateboarder is accelerating forward. How would his acceleration change if he had more mass?
exis [7]

Answer:

If the force remains the same, the acceleration would decrease

Explanation:

According to Newton's second law, the acceleration of an object is given by

a=\frac{F}{m}

where

F is the force applied to the object

m is the mass of the object

As we see from the formula, the acceleration a is inversely proportional to the mass, m. Therefore, if the force F remains constant, this means that if the mass of the skateboarder increases, then the acceleration will decrease.

4 0
4 years ago
A 2.5 m -long wire carries a current of 8.0 A and is immersed within a uniform magnetic field B⃗ . When this wire lies along the
leva [86]

Answer:

Explanation:

Let the magnetic field be B = B₁i + B₂j + B₃k

Force = I ( L x B )  , I is current , L is length and B is magnetic field .

In the first case

force = - 2.3 j N

L = 2.5 i

puting the values in the equation above

- 2.3 j = 8 [ 2.5 i x ( B₁i + B₂j + B₃k )]

= - 20 B₃ j + 20 B₂ k

comparing LHS and RHS ,

20B₃ = 2.3

B₃ = .115

B₂ = 0

In the second case

L = 2.5 j

Force = I ( L x B )

2.3i−5.6k = 8 ( 2.5 j x (B₁i + B₂j + B₃k )

=  - 20 B₁ k + 20B₃ i

2.3i−5.6k = - 20 B₁ k + 20B₃ i

B₃ = .115

B₁ = .28

So magnetic field B = .28 i + .115 B₃

Part A

x component of B = .28 T

Part B

y component of B = 0

Part C

z component of B = .115 T .

8 0
3 years ago
How many millimeters is represented by 6.7 cm
Alex787 [66]

Answer:

the answers is 67 millimeter plz put me brain list

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3 years ago
All sound waves need a(n) _______________________________________ to travel through. 4. _____________________ and ______________
Paha777 [63]

Answer:

Material medium

compressions and rarefactions

Explanation:

A sound wave is an example of a mechanical wave. All mechanical waves require a material medium for propagation. The medium for the propagation of sound is air. This is the reason why, if you cover your mouth, it will be difficult for another person to hear whatever you are saying.

Sound is also a longitudinal wave. Longitudinal waves are described in terms of compressions and rarefactions. Compressions refer to areas where air molecules crowd together while rarefactions refer to areas where the air molecules spread out.

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3 years ago
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