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mariarad [96]
3 years ago
5

An example of forced convection is the movement of hot air by a fan.

Physics
1 answer:
zavuch27 [327]3 years ago
4 0
This is true. let me know if im wrong.
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Runner A had the highest velocity. Runner C had the lowest velocity. Runners A and B started at the same position, but runner C
galina1969 [7]

Answer:

A. C. and D.

Explanation:

6 0
3 years ago
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Which one of the following is an example of a solution?
insens350 [35]

Answer:

it is maybe A but i'm not 100% sure

Explanation:

its the only one that is mixed

6 0
2 years ago
A parachutist falls 50.0 m without friction. When the parachute opens, he slows down at a rate of 61 m/s^2. If he reaches the gr
ira [324]

Answer:

55.66 m

Explanation:

While falling by 50 m , initial velocity u = 0

final velocity = v , height h = 50 , acceleration g = 9.8

v² = u² + 2gh

= 0 + 2 x 9.8 x 50

v = 31.3 m /s

After that deceleration comes into effect

In this case final velocity v = 17 m/s

initial velocity u = 31.3 m/s

acceleration a = - 61 m/s²

distance traveled h = ?

v² = u² + 2gh

(17)² = (31.3)² - 2x 61xh

h = 690.69 / 2 x 61

= 5.66 m

Total height during which he was in air

= 50 + 5.66

= 55.66 m

3 0
2 years ago
According to the theory of a symmetry breaking, at the moment of quark confinement, when the universe was 10-6 seconds old, what
AlekseyPX

At the time of quark confinement, when the universe was 10-6 seconds old, there is found to be one additional proton for every billion antiprotons.

<h3>What is quark confinement?</h3>

Note that  one quark is never found on its own but if particles are said to be smashed together and quarks are found, they are said to be like ends of rubber bands that expands.

Hence, At the time of quark confinement, when the universe was 10-6 seconds old, there is found to be one additional proton for every billion antiprotons.

Learn more about  quark from

brainly.com/question/15103512

#SPJ1

7 0
1 year ago
Give the number of significant figures: 832.000 km
Galina-37 [17]
It has three significant figure
8 0
3 years ago
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