3 years ago

The rebirth of science and learning during the fifteenth century is termed the

Physics

1 answer:

Pepsi [2]3 years ago

5 0

The Renaissance, was the rebirth to science as well as many other advancements

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If you walk 3 kilometers in 30 minutes , what is the average speed in kilometers per hour?

Pepsi [2]

Answer:

6 km/h

Explanation:

V avg = ∆x/∆t = 3km / 30 min ×(60min/1h) = 3 km× 2 /h = 6 km/h

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2 years ago

Match each word to it's correct meaning.

Ivan

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fluid transfer of heat by the motion of the particles of gas or fluid

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2 years ago

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How long would it take to go 11 miles at 22 mph?

harkovskaia [24]

It would tack about 3.2 h

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3 years ago

A rope is being used to pull a mass of 10 kg vertically upward. Determine the tension on the rope, if starting from rest, the ma

Sergio [31]

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2 years ago

A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 4.50 m from the center of rotation. (a) Calculate th

NeX [460]

Answer:

(a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

Explanation:

Given that,

Angular velocity = 110 rev/m

Radius = 4.50 m

(a). We need to calculate the average speed

Using formula of average speed

$v=r\omega$

$v = 4.50\times110\times\dfrac{2\pi}{60}$

$v=51.83\ m/s$

(b). The average velocity over one revolution is zero because the net displacement is zero in one revolution.

Hence, (a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

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2 years ago