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wlad13 [49]
2 years ago
7

The ____________________ of your voice refers to its intensity or loudness.

Physics
1 answer:
JulijaS [17]2 years ago
7 0
That's the amplitude.
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A car is traveling at 30m/s it accelerates steadily for 5 s after which it is travelling at 50 m/s calculate its acceleration?
Natalka [10]
Formula for acceleration: a = v-v0/t
a is acceleration, v is final velocity and v0 is starting velocity, t is time
Now plug it in
a = 50m/s - 30 m/s = 20 m/s/ 5s = 4 m/s^2
The acceleration is 4 m/s^3
7 0
2 years ago
Read 2 more answers
A box with a mass of 2 kg only has four forces acting on it: One force of 16 N due East. One force of 24 N due South. One force
julsineya [31]

Answer:

The magnitude of acceleration is 3 m/s^2.

Explanation:

The net force along North-South direction is 18-24=-6 N.

The net force along East-West direction is 16-16=0 N

The net magnitude of force is square root of (-6)^2+0^2 which is 6 N.

By Newton's Second law,

Force F=ma

Therefore acceleration a=F/m

                                       a=6/2

                                       a=3 m/s^2

Learn more about Newton's second law.

brainly.com/question/13447525

#SPJ10

3 0
2 years ago
Read 2 more answers
Imagine that the light you observe from space is exhibiting a redshift. This would mean that the Universe is Choose one: A. trav
docker41 [41]

Answer: C. Expanding

Explanation:

When an object moves away from an observer, the light waves emitted by the object are stretched out making them have move towards the red end of the electromagnetic spectrum, where light has a longer wavelength. This phenomenon is known as the redshift (cosmological redshift). For most astronomical objects, the observed spectral lines are all shifted to longer wavelengths. It is caused solely by the expansion of the Universe and thus, the value of a redshift indicates the recession velocity of the expanding object, or its distance.

Redshift is opposed to the blueshift. Blue light wavelengths tend to be closer together hence blueshift light tends to be emitted from objects that are collapsing.

7 0
3 years ago
wich following is not use of doppler effect? a, radar b, astronomy c, energy transmission d, blood floe measurment​
ElenaW [278]

Answer:

I believe the answer is D

Explanation: The doppler affect isan increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other.

6 0
3 years ago
How long does it for a car to cover 100 miles at 60 mi/hr? Use one of the following equations:
yaroslaw [1]

Answer:

Explanation:

r = 60 mph

d = 100 miles

t = ?

t = d/r

t = 100 /60

t = 1 2/3 hour or 1 hour and 40 minutes.

8 0
2 years ago
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