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Elanso [62]
3 years ago
15

A wave has a period of 4 seconds. What is its frequency?

Physics
1 answer:
kobusy [5.1K]3 years ago
6 0

Answer: 0.25 Hz

Explanation:

F= 1/T= 1/4s= 0.25 Hz

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A train is traveling north. it goes 200 km /hr for 2.5 hours how far did the train go.
PSYCHO15rus [73]
<h3>Answer: 500 Kilometers</h3>

Explanation:

The formula for finding distance is: speed × time

We must multiply:

200Km/h × 2.5 hours

This gives you 500 Km.

<u>Remember: the formula to work out the distance -  speed x time.</u>

If the train speed is 200 km/h, it travels 200 km/h.

Now, we must multiply 200 by 2.5:

200 x 2.5 = 500

Our answer is 500 Kilometers.

7 0
3 years ago
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ludmilkaskok [199]

Answer:

a. water

Explanation:

A buoy is a floating object that is used in the sea to locate some point or as a checkpoint. It stays at its designated position in the sea by means of an anchor chain. This chain is made short in length according to the water depth do the buoy can not deviate much from its position. The same mechanism can be applied to the metal ion. When a metal ion is formed it remains at its place, but the electrons are mobile and they travel when they get a medium. For example in circuits or from one atom to other. And for the case of buoy, the water serves as electrons as the water is moving in the medium. Hence, the second analogy will be:

electrons : water

So, the correct option is:

<u>a. water</u>

5 0
2 years ago
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places with continental climates typically have _______ summers and ________ winters warm; cool hot; cool warm; cold hot; cold
ipn [44]
Places with continental climates typically have hot summers and cold winters. As compared to places with mild climates, places with continental climates tend to experience the two extremes when it comes to the seasons. Summers can get very hot, and winters can get very cold. 
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Is there a graph or a picture
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Answer:

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Explanation:

right...

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