PLEASE HELP ASAP! This is an emergency!

Physics

2 answers:

dsp733 years ago

8 0

1. A
2. B
3. C
4. C
that's all I've got! Im sorry!

GREYUIT [131]3 years ago

6 0

1). A
2). C
3). B
4). C
5). D
6). physical properties
7). volume
8). color
9). standard masses
10). weight, but can be used to measure mass
11). liquid
12). displacement
13). density
14). float
15). sink

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A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits are useful for communication

koban [17]

Answer:

r = 4.24x10⁴ km.

Explanation:

To find the radius of such an orbit we need to use Kepler's third law:

$\frac{T_{1}^{2}}{T_{2}^{2}} = \frac{r_{1}^{3}}{r_{2}^{3}}$

<em>where T₁: is the orbital period of the geosynchronous Earth satellite = 1 d, T₂: is the orbital period of the moon = 0.07481 y, r₁: is the radius of such an orbit and r₂: is the orbital radius of the moon = 3.84x10⁵ km. </em>

From equation (1), r₁ is:

$r_{1} = r_{2} \sqrt[3] {(\frac{T_{1}}{T_{2}})^{2}}$

$r_{1} = 3.84\cdot 10^{5} km \sqrt[3] {(\frac{1 d}{0.07481 y \cdot \frac{365 d}{1 y}})^{2}}$

$r_{1} = 4.24 \cdot 10^{4} km$

Therefore, the radius of such an orbit is 4.24x10⁴ km.

I hope it helps you!

3 0

4 years ago

The Sun emits a solar flare directly aimed at Earth. Which instrument on an orbiting satellite would detect the flare first?

Tatiana [17]

Answer:

X-ray Telescope

Explanation:

X-ray Telescope which can be either hard or soft is an instrument on an orbiting satellite that would detect the flare first.

This is because X-ray Telescope is technically designed to detect and determine X-rays or radio and optical emissions from flares, from places or points beyond Earth's atmosphere.

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3 years ago

Is bleach heterogeneous

irga5000 [103]

No, bleach is not heterogeneous. Bleach is actually homogeneous.
Heterogeneous is if it the same throughout.
Homogeneous is if it is different (has chunks and clumps of different materials)

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4 years ago

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DanielleElmas [232]

Answer:

Q1: (a)

$1cm \: = 10 {}^{ - 2}m$