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valentina_108 [34]
3 years ago
13

Why are units of measurement useful?

Physics
1 answer:
Lena [83]3 years ago
3 0

Answer:

a

Explanation:

because the si system does not need to be completed. also the metric system can also.be used

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A stationary wave of two loops is formed on a string of length 1.2m. Sketch the pattern and state the wavelength. Label two poin
jeka94

Explanation:

Throughout this chapter, we have been studying traveling waves, or waves that transport energy from one place to another. Under certain conditions, waves can bounce back and forth through a particular region, effectively becoming stationary. These are called standing waves.

7 0
3 years ago
A rigid beam with one end at the origin has a force, F = 7.1 i +-1.8 j +7.8 k N acting on it at a position r = 2.4 i +5.3 j +8.4
myrzilka [38]

Explanation:

A rigid beam with one end at the origin has a force, F = 7.1 i +-1.8 j +7.8 k N acting on it at a position r = 2.4 i +5.3 j +8.4 k m from its fixed pivot point at the origin, Determine the magnitude of the torque exerted by this force.

a.

81.38 Nm

b.

4579.39 Nm

c.

109.33 Nm

d.

None of the other answers is correct

e.

0.00 Nm

4 0
3 years ago
Based on the solubility chart, which of the listed salts is the most soluble at 25 °C?
Black_prince [1.1K]
The best and most correct answer among the choices provided by the question is the first choice "sodium nitrate"


<span>Sodium nitrate is the chemical compound with the formula NaNO₃. This alkali metal nitrate salt is also known as Chile saltpeter or Peru saltpeter to distinguish it from ordinary saltpeter, potassium nitrate.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
3 0
3 years ago
Read 2 more answers
A particle moves in a straight line and has acceleration given by a(t) = 12t + 10. Its initial velocity is v(0) = −5 cm/s and it
soldi70 [24.7K]

Answer:

The position function is s_{t}=2t^3+5t^2-5t+9.

Explanation:

Given that,

Acceleration a =12t+10

Initial velocity v_{0} = -5\ cm/s

Initial displacement s_{0}=9\ cm

We know that,

The acceleration is the rate of change of velocity of the particle.

a = \dfrac{dv}{dt}

The velocity is the rate of change of position of the particle

v=\dfrac{dx}{dt}

We need to calculate the the position

The acceleration is

a_{t} = 12t+10

\dfrac{dv}{dt} = 12t+10

a_{t}=dv=(12t+10)dt

On integration both side

\int{dv}=\int{(12t+10)}dt

v_{t}=6t^2+10t+C

At t = 0

v_{0}=0+0+C

C=-5

Now, On integration again both side

v_{t}=\int{ds_{t}}=\int{(6t^2+10t-5)}dt

s_{t}=2t^{3}+5t^2-5t+C

At t = 0

s_{0}=0+0+0+C

C=9

s_{t}=2t^3+5t^2-5t+9

Hence, The position function is s_{t}=2t^3+5t^2-5t+9.

7 0
3 years ago
Which element is most likely to have an oxidation number of +3?
Marina86 [1]

Answer:

A different answer to this is AI

Explanation:

4 0
3 years ago
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