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slamgirl [31]
3 years ago
7

suggest a Form of renewable energy that could be used to power an electric ticket machine that only needs to work during dayligh

t hours​
Physics
1 answer:
Stella [2.4K]3 years ago
5 0

Answer:

Solar Energy

Explanation:

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Give two examples of pure substances and two examples of mixtures​
nikdorinn [45]

Answer:

1 kerosene is the pure substance, salt and water is the mixture substance

7 0
2 years ago
Read 2 more answers
suppose you increase your walking speed from 5m/s to 14m/s in a period of 1 . what is your acceleration?
Ne4ueva [31]

Acceleration = (change in speed) / (time for the change.

change in speed = (ending speed) - (starting speed)  =  9 m/s.

Acceleration  =  (9 m/s) / (period of 1) .

We don't know the units of the 'period of 1'.
If it means '1 second', then the acceleration is   9 m/s² .

7 0
3 years ago
A motorist traveling with a constant 15m/s passes a school crossing conner where the speed limit is 10m/s,just as a motorist pas
aleksklad [387]

Answer:

The answer is 5 seconds;

Explanation:

<h3>a) We know that the speed(V) is 15 m/s and acc. (a) is 3 m/s^2 </h3><h3>b) The formula for the acceleration is  a=\frac{V}{t};</h3><h3>Using this formula we can define the next equation:</h3><h3>3 =  \frac{15}{t} , where  t is the sought time. After solving the equation we get that t is 5; </h3><h3> </h3><h3></h3><h3></h3>
3 0
2 years ago
WHY light travel in straight line?reason?
Dafna1 [17]

Light travels in a straight line because it doesn't usually interact with its medium. When it does it is called refraction.

8 0
3 years ago
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what is the wavelength of waves at the beach if they have a frequency of 0.3 Hz and they move at 7.1 m/s?
Reil [10]

Answer:

23.67 m

Explanation:

We are given;

Frequency; f = 0.3 Hz

Speed; v = 7.1 m/s

Now, formula to get the wavelength is from the wave equation which is;

v = fλ

Where λ is wavelength

Making λ the subject, we have;

λ = v/f

λ = 7.1/0.3

λ = 23.67 m

5 0
3 years ago
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