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Basile [38]
4 years ago
7

This roller coaster has potential energy when it is sitting at the top of this loop. As the cars move down, the potential energy

changes into energy of motion. What kind of potential energy does the roller coaster have at the top of the loop?
A) potential chemical energy
B) potential elastic energy
C) potential electrical energy
D) potential gravitational energy
Physics
1 answer:
Inessa05 [86]4 years ago
3 0

D) Potential gravitational energy. Since the roller coaster cars are a the top of the roller coaster they have potential energy due to the gravity's downwards pull on them.

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Which of the following is considered a calm area close to the equator resulting in little to no wind?
solong [7]
<h2>Right answer: Doldrums</h2>

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In this area periods of great calm occur when the winds virtually disappear completely, trapping the sailing ships for long periods (days or weeks). This is why the term <em>doldrum</em> became popular as a colloquial expression in the eighteenth century, to refer to "<em>the caprice of the wind that slows down the navigation to sail". </em>


The zone is located in the place where two trade winds meet, this means the trade winds of the northern hemisphere <u>converge</u> with those of the southern hemisphere, that is why this region is related to the <u>intertropical convergence zone</u>.


5 0
4 years ago
A toy cart moves with a kinetic energy of 30 J. If its speed is doubled, what is its kinetic energy?
klio [65]

Explanation:

KE is directly proportional to the square of velocity / speed.

if speed is 2 times (doubled) the KE will be

{2}^{2}

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8 0
3 years ago
I NEED HELP ON THIS QUESTION!
GarryVolchara [31]

Forward because things that are in motion stay in motion.

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4 0
3 years ago
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What happens when condensation causes clouds to become very heavy?
nordsb [41]

Answer:

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Explanation:

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8 0
3 years ago
An airplane flies with a constant speed of 620 miles per hour. how far can it travel in 3 1/2 hours?
ELEN [110]

Answer:

hi there !

1 hour -------> 620 miles

3 1/2 ---------> ?

the number of miles the airplane travels in 3 1/2 hours

= 3 1/2 × 620 = "2170" miles

8 0
3 years ago
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