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Sloan [31]
3 years ago
10

All planets revolve around the sun counterclockwise,and most also rotate on their axis counterclockwise true or false

Physics
1 answer:
Vedmedyk [2.9K]3 years ago
8 0
All the planets revolve around the sun counter clockwise and rotate on hteir axis counterclockwise except venus and neptune.
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How do small pieces of iron behave when brought close to a magnet?​
taurus [48]

Answer:

When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.

Explanation:

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2 years ago
The energy of atoms and molecules in an object due to their motion is_______ energy
QveST [7]
I think the answer is potential 
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3 years ago
When is a secondary source more helpful than a primary source?
UNO [17]

Answer:

I think the answer is C.

Explanation:

A primary source is a first hand account of an event while a secondary source is a retelling or second hand account meaning as many details will be prevalent.

8 0
2 years ago
A satellite orbits the earth a distance of 1.50 × 107 m above the planet's surface and takes 8.65 hours for each revolution abou
kupik [55]

Answer:

The acceleration of the satellite is 0.87 m/s^{2}

Explanation:

The acceleration in a circular motion is defined as:

a = \frac{v^{2}}{r}  (1)

Where a is the centripetal acceleration, v the velocity and r is the radius.

The equation of the orbital velocity is defined as

v = \frac{2 \pi r}{T} (2)

Where r is the radius and T is the period

For this particular case, the radius will be the sum of the high of the satellite (1.50x10^{7} m) and the Earth radius (6.38x10^{6} m) :

r = 1.50x10^{7} m+6.38x10^{6}m

r = 21.38x10^{6}m

Then, equation 2 can be used:

T = 8.65 hrs \cdot \frac{3600 s}{1hrs} ⇒ 31140 s

v = \frac{2 \pi (21.38x10^{6}m)}{31140s}

v = 4313 m/s

Finally equation 1 can be used:

a = \frac{(4313m/s)^{2}}{21.38x10^{6}m}    

a = 0.87 m/s^{2}

Hence, the acceleration of the satellite is 0.87 m/s^{2}

6 0
3 years ago
Brief description about construction of mercury thermometer with figure ​
Firlakuza [10]
A thermometer consists of a glass bulb filled with mercury. A capillary tube arises from this bulb. Due to the thin bore of the tube, a little change in the volume of the mercury becomes considerably noticeable. According to the construction, there are dissimilar types of thermometers
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3 years ago
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