2 years ago

After going through the hoop, a basketball falls to the floor 3 meters below the hoop. The ball

Physics

1 answer:

Irina-Kira [14]2 years ago

8 0

Answer:

immma send you the link friend me on hereExplanation:

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A well-trained athlete can run 400m in 47s, what is the athlete’s velocity?

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Answer:

8.51 m/s

Explanation:

Velocity = Displacement/Time

Velocity = 400 m ÷ 47 s

Velocity = 8.51 m/s

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2 years ago

The graph below represents changes in water. What process is occurring during section “B” of the graph?

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2 years ago

Represent 7468 N with SI units having an appropriate prefix. Express your answer to four significant figures and include the app

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Answer:

7.468 kN

Explanation:

Here the force is given in Newton

Some of the prefixes of the SI units are

kilo = 10³

Mega = 10⁶

Giga = 10⁹

Tera = 10¹²

The number is 7468.0

Here, the only solution where the number of significant figures is kilo. If any other prefix is chosen then the significant figures will increase.

1 kilonewton = 1000 Newton

$1\ Newton=\frac{1}{1000}\ kilonewton$

$\\\Rightarrow 7468\ Newton=\frac{7468}{1000}\ kilonewton\\ =7.468\ kilonewton$

So, 7468 N = 7.468 kN

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3 years ago

If a roller coaster cart, with a mass of 100 kg, traveled this coaster, how much kinetic energy would it have at point 'E'?

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Answer:

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Assuming no friction between the roller coaster car and the hill, and neglecting air resistance, the kinetic energy the roller coaster car would have at the bottom of the hill would be equal to its gravitational potential energy at the top of the hill, by conservation of energy.

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2 years ago

The sparse area surrounding a spiral galaxy is called a

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The sparse area surrounding a spiral galaxy is called a

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