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Lunna [17]
3 years ago
10

In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 100-meter dash in 9.69 seconds. Determine Usa

in's average speed (velocity) for the race.
Physics
1 answer:
-Dominant- [34]3 years ago
4 0

Answer:

His average speed was 10.3199 m/s.

Explanation:

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Answer:

yes

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3 years ago
A meteoroid is in a circular orbit 600 km above the surface of a distant planet. The planet has the same mass as Earth but has a
AVprozaik [17]
<h2>Answer:</h2><h2>The acceleration of the meteoroid due to the gravitational force exerted by the planet = 12.12 m/s^{2}</h2>

Explanation:

A meteoroid is in a circular orbit 600 km above the surface of a distant planet.

Mass of the planet = mass of earth = 5.972 x 10^{24} Kg

Radius of the earth = 90% of earth radius = 90% 6370 = 5733 km

The acceleration of the meteoroid due to the gravitational force exerted by the planet = ?

By formula, g = \frac{GM}{r^{2} }

where g is the acceleration due to the gravity

G is the universal gravitational constant = 6.67 x 10^{-11} m^{3} kg^{-1} s^{-2}

M is the mass of the planet

r is the radius of the planet

Substituting the values, we get

g =  \frac{(6.67 * 10^{-11}) (5.972 * 10^{24})  }{5733^{2} }

g = 12.12 m/s^{2}

The acceleration of the meteoroid due to the gravitational force exerted by the planet = 12.12 m/s^{2}

6 0
3 years ago
5. Which of these affect the brightness of a bulb? Choose all that apply.* 6 po
schepotkina [342]

Answer:

The voltage of the battery

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Which word describes a goal that is poorly written?
stiv31 [10]

Abstract. Abstract is defined as an idea or plan but no actions are done

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to achieve the goal being set. Goals that are abstract

are often poorly written and uncertain

:)

6 0
3 years ago
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