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pishuonlain [190]
3 years ago
7

The British attempted to break the land-speed record and the sound barrier using a jet-powered car. They made their attempt in t

he morning because this is when the air was coolest. This suggests that the relationship in which graph is true?
Physics
2 answers:
Serhud [2]3 years ago
6 0

Answer:

b

Explanation:

jolli1 [7]3 years ago
4 0

Your answer is B.

The relationship between medium temperature and speed of sound is a direct relationship: when one factor increases, the other increases as is shown in graph B. The British would choose the the time of day which would give the lowest speed of sound, because this would be easiest to break. Graph B shows that the lowest speed of sound would occur with the lowest air temperature - in the morning.

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Guys please help me out I’ll give extra points
zvonat [6]

Answer: h = 3.34 m

Explanation:

If the hat is thrown straight up, then at its highest point it has no motion and no kinetic energy. All energy is potential energy

PE = mgh

h = PE/mg = 4.92 / (0.150(9.81)) = 3.34352... ≈3.34 m

8 0
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What force must act on a 50.0-kg mass to give it an ancceleration of 0.30 m/s^2?
ratelena [41]

Answer:

15.0 N

Explanation:

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3 0
3 years ago
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Nataliya [291]
I think is between A&B
I think I would answer B
6 0
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LUCKY_DIMON [66]

Answer:

The water is stored in ice sheets and as snow

Explanation:

Temperature reduces with an increase in altitudes. The standard laps rate is 6.5°C per 1,000 m gained in elevation

At very high elevations, therefore,  the air is usually very cold such that when an elevation of 4,500 meters is reached at the equator, it is possible to observe snowfall and the water remain temporarily stored on the surface of the mountain as ice and snow

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If we put a convex lens made by crown glass <br>in Carbondia sulphide what will happen?​
7nadin3 [17]

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