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Vitek1552 [10]
3 years ago
5

What do odometer and speedometer read ?

Physics
1 answer:
maksim [4K]3 years ago
6 0
Odometer: tells you the distance traveled by vehicle since it was new (or when last reset)

Speedometer: tells you the velocity of the vehicle at that moment.
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A sled is pulled up to the top of a hill. At thetop of the hill the sled is released from rest and allowed to coastdown the hill
Stolb23 [73]

Answer:

a.) the speed at the bottom is greater for the steeperhill

Explanation:

since the energy at the bottom of the steeper hilis greater

mgh =\frac{1}{mv^2}

As we can see from above that v is higher when h ishigher.

8 0
2 years ago
What is the difference between continuous and a discontinuous spectrum?
aleksklad [387]
A continuous spectrum contains all the wavelengths 

A discontinuous spectrum has strips of specific colors and can be used to identify the elements making it.

hope this helps

5 0
3 years ago
A car traveling at 28 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?
Maru [420]

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

change in speed = (speed at the end) minus (speed at the beginning)

change in speed = (zero) minus (28 m/s) = -28 m/s

Acceleration = (-28 m/s) / (13 sec)

Acceleration = -2.15 m/s²

5 0
3 years ago
Which of these is an example of a mechanical wave?
OLga [1]
Your answer is A, Ocean Waves- because A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. Ocean waves do just that :)
Hope this helps!!
6 0
3 years ago
True/False: If an object stays still, but the observer moves, the Doppler Effect is still observered
Vladimir79 [104]

Well, Harry, what you said is not necessarily true the way you said it. 
But we know what you mean, and what you meant to say is true.

The Doppler effect is observed if there is relative radial motion
between an object and an observer <em><u>AND</u></em> if the object happens
to be putting out sound or light in the observer's direction.


3 0
3 years ago
Read 2 more answers
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