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ICE Princess25 [194]
3 years ago
6

What information is required when calculating speed or acceleration?

Physics
1 answer:
Tomtit [17]3 years ago
7 0

distance spreed time

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The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat tra
I am Lyosha [343]

The steps in the heating of a metal seat in a park are:

Step 1: Heat travels from the sun to Earth

Step 2: Heat travels through atmosphere to the top of the seat

Step 3: Heat from the top of the seat travels through the seat to the lower parts of the seat.

-- Heat is transferred by radiation in Step 1 and Step 2. <em>(B)</em>

-- From the top of the seat to the bottom, heat is transferred by conduction.  

There's no convection happening anywhere in the park-hot-seat scenario.

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3 years ago
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An astronomer is observing a star which puzzles her. The lines in the star's spectrum indicates that the star is very hot and sh
Firlakuza [10]

Answer:

the stars which are red in color are cool.

Explanation:

The stars which has reddish color are cool in nature while those stars which has white and blue in color are very hot in nature. The stars change its color when they becomes hotter , first the star color reddish when they are cool but with increasing temperature it changes the color from reddish to orange then yellow. After yellow it turns green and finally get blue color when the stars are very very hot.

5 0
3 years ago
Stephen throws a 0.46 kg football at a speed of 14 m/s and it goes through the goal posts 2.4 m above where he threw it. What is
Dovator [93]
  • Answer:
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5 0
2 years ago
A crane lifts a 6.500 N weight 10 m in 180 seconds. What power is used?
Nostrana [21]
Power is work over time.

P= \frac{W}{t}

We can solve for work by using F*d

W=F*d = (6.500N)(10m) = 65 J

Now solve for power:

P= \frac{(65J)}{180s} = 0.361W&#10;&#10;P=0.361W
8 0
3 years ago
Directions: Use the passage and the diagram below to answer the question. What is the average speed, in meters per second, of th
AleksAgata [21]

Answer:

1.25m/s

Explanation:

Average speed = distance / time elapsed

= 100/80

=1.25m/s

5 0
3 years ago
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