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dimaraw [331]
3 years ago
6

A. All of the stars move in a clockwise path around Polaris.

Physics
1 answer:
densk [106]3 years ago
3 0

Explanation:

Polaris also called North star is the brightest star in the the constellation Ursa Minor. It remains stationary whereas entire north sky move around it. It the point of north celestial pole.

A) False. This is because  All of the stars move in a counterclockwise path around Polaris.

B) False. Reason stated above.

C) True, As the stars move towards the Polaris there orbital radius decreases as they move smaller circles.

D) False, As the stars move towards the Polaris there orbital radius decreases as they move smaller circles.

E) True.

F) False.

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To start a great night of doing physics homework, you sit down to pour yourself a good cup of coffee. Your coffee mug has a mass
astra-53 [7]

Answer:

1) The temperature will be closer to water

2) T = 68.239°C

3) T = 72.142°C

4) T = 69.266 °C

Explanation:

1)

The temperature will be closer to water because  the heat capacity of water > heat capacity of coffee.

2)

137(1.089)(T - 23.8) = 137(4.186)(79.8 - T)

⇒(1.089)(T - 23.8) = (4.186)(79.8 - T)

⇒1.089 T - 25.9182 = 334.0428 - 4.186 T

⇒1.089 T +  4.186 T = 334.0428 + 25.9182

⇒5.275 T = 359.961

⇒ T = 68.239°C

3)

137(1.089)(T - 23.8) = 225(4.186)(79.8 - T)

⇒(149.193)(T - 23.8) = (941.85)(79.8 - T)

⇒149.193 T - 3550.7934 = 75159.63 - 941.85 T

⇒149.193 T +  941.85 T = 75159.63  + 3550.7934

⇒1091.043 T = 78710.4234

⇒ T = 72.142°C

4)

137(1.089)(T - 23.8) + 11.7(4.186)(T - 5.2)= 225(4.186)(79.8 - T)

⇒(149.193)(T - 23.8) + 48.9762(T - 5.2) = (941.85)(79.8 - T)

⇒149.193 T - 3550.7934  + 48.9762 T - 254.67624= 75159.63 - 941.85 T

⇒149.193 T +  941.85 T + 48.9762 T = 75159.63  + 3550.7934 + 254.67624

⇒1091.043 T + 48.9762 T = 78710.4234 + 254.67624

⇒1140.0192 T = 78965.09964

⇒ T = 69.266 °C

6 0
3 years ago
What is the difference between pitch and volume?
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Answer:

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Explanation:

4 0
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If vector A ⃗  has components A x and A y and makes an angle θ with the +x axis, then
ziro4ka [17]
Then the tangent of angle-Θ is (Ay / Ax).
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From Earth to the center of our galaxy is about 300,000 light years, meaning that light coming from a star in the center of our
natima [27]
<span>it takes about about 37,200 years for light to travel 1 light year. So the answer would have to be false. It would take way longer than 300k years

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7 0
3 years ago
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Answer:

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