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pshichka [43]
3 years ago
15

How do earths movements affect our view of the star

Physics
2 answers:
Annette [7]3 years ago
7 0
In the solar system the Earth rotates around the sun and the moon rotates around the Earth. this cause half of the earth to be bright at a time.. the moon has different phases which causes the earth to be affected
Rzqust [24]3 years ago
4 0

As the Earth makes a full revolution, we see the sun and no stars, except the sun, and when our section of Earth is facing away from the sun we can see other starts.
Also, as the Earth revolves around the sun, certain stars can be seen and certain stars go out of view.


Hope this helps!!(:

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balu736 [363]
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2 years ago
A sample of copper with a mass of 1.80 kg, initially at a temperature of 150.0°C, is in a well-insulated container. Water at a t
user100 [1]

Answer:

the mass of water is 0.3 Kg

Explanation:

since the container is well-insulated, the heat released by the copper is absorbed by the water , therefore:

Q water + Q copper = Q surroundings =0 (insulated)

Q water = - Q copper

since Q = m * c * ( T eq - Ti ) , where m = mass, c = specific heat, T eq = equilibrium temperature and Ti = initial temperature

and denoting w as water and co as copper :

m w * c w * (T eq - Tiw) = - m co * c co * (T eq - Ti co) =  m co * c co * (T co - Ti eq)

m w = m co * c co * (T co - Ti eq) / [ c w * (T eq - Tiw) ]

We take the specific heat of water as c= 1 cal/g °C = 4.186 J/g °C . Also the specific heat of copper can be found in tables → at 25°C c co = 0.385 J/g°C

if we assume that both specific heats do not change during the process (or the change is insignificant)

m w = m co * c co * (T eq - Ti co) / [ c w * (T eq - Tiw) ]

m w= 1.80 kg *  0.385 J/g°C ( 150°C - 70°C) /( 4.186 J/g°C ( 70°C- 27°C))

m w= 0.3 kg

7 0
3 years ago
List the 5 Greek variables used to measure rotational motion and their counterparts for translational motion
Leni [432]

Explanation:

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On a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water at 1.5s later. I
xxTIMURxx [149]
That is right  because base*length is how you get the height


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A speedboat with a mass of 511 kg (including the driver) is tethered to a fixed buoy by a strong 31.5 m cable. The boat's owner
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its is 23.09 kb

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