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frozen [14]
3 years ago
11

A bicyclist travels at the speed of 25 kilometers per hour for 5 hours. How far does the bicyclist go?

Physics
2 answers:
Andreas93 [3]3 years ago
8 0

Answer:

\boxed {\boxed {\sf 125 \ kilometers}}

Explanation:

Distance is the product of speed and time.

d=s*t

The speed of the bicyclist is 25 kilometers per hour. The time is 5 hours.

s= 25 \ km/hr \\t= 5 \ hr

Substitute the values into the formula.

d= 25 \ km/hr * 5 \ hr

Multiply. The hours will cancel each other out.

d= 125 \ km

The bicyclist travels 125 kilometers.

mixas84 [53]3 years ago
6 0

Answer:

125 kilometers

Explanation:

Speed= 25km/h

Time = 5 h

Distance= Speed x Time

= 25 x 5

= 125 km

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3 years ago
The near point of an eye is 110 cm. A corrective lens is to be used to allow this eye to focus clearly on objects 26.0 cm in fro
irga5000 [103]

Answer:

The focal length of the lens is 34.047 cm

The power of the needed corrective lens is 2.937 diopter.

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Distance of the object from the lens,u = 26 cm

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(Image is forming on the other side of the lens)

Since ,lens of the human eye is converging lens,convex lens.

Using a lens formula:

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\frac{1}{f}=\frac{1}{26 cm}+\frac{1}{-110 cm}

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3 years ago
Is it proper to use an infinitely long cylinder model when finding the temperatures near the bottom or top surfaces of a cylinde
Gelneren [198K]

Answer:

No, it is not proper to use an infinitely long cylinder model when finding the temperatures near the bottom or top surfaces of a cylinder.

Explanation:

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Cylindrical rods can also be treated as infinitely long when dealing with heat transfers at locations far from the top or bottom surfaces. However, it not proper to treat the cylinder as being infinitely long when:

* When the diameter and length are comparable (i.e have the same measurement)

When finding the temperatures near the bottom or top of a cylinder, it is NOT PROPER TO USE AN INFINITELY LONG CYLINDER because heat transfer at those locations can be two-dimensional.

Therefore, the answer to the question is NO, since it is not proper to use an infinitely long cylinder when finding temperatures near the bottom or top of a cylinder.

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Answer:

5

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62

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