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svlad2 [7]
2 years ago
6

What are the five advantages of using machine and tools in our daily life?​

Physics
1 answer:
daser333 [38]2 years ago
7 0

Answer:

it makes our work easy and

time saving

it multiply our force applied

it complete our work with high efficiency

by using this,less effort is required for the work.

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☆Will Give Brainliest☆
Masja [62]

Answer: :)

1.) The Doppler effect is, the change in sound or light that occurs whenever there is motion between the source and its observer. The siren of the fire engine has a lower pitch as it moves away because the waves are now spread out causing a lower frequency and a lower pitch.

2.) Wave frequency is related to wave energy. Since all that waves really are is traveling energy, the more energy in a wave, the higher its frequency. The lower the frequency is, the less energy in the wave.

5 0
3 years ago
Under what atmospheric condition is fog most often formed in the san joaquin valley?
GalinKa [24]
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway,here is the answer. The atmospheric condition in which <span>fog is most often formed in the san Joaquin valley is stable stability. Hope this helps.</span>
4 0
3 years ago
What does a reference point provide
vfiekz [6]
To check progress and direction
8 0
3 years ago
Raquel says, “I just saw an ad that has my favorite song and my favorite colors. It’s for the new theme park in town. I love the
NNADVOKAT [17]

Answer:

C. Targets

Explanation:

Because the Ad for the theme park effectively caught Raquel's attention, a businessperson would say that the ad accurately targeted Raquel. Marketers use specific colors, themes, designs, songs, etc to target a specific audience.

4 0
1 year ago
4. How far apart are a proton and electron if they exert an attractive force of 3 N on one another?
nikitadnepr [17]

Answer:

For the force due to electromagnetism we use Coulomb’s inverse square law:

F=keq1q2r2

(where F is the electrostatic force, q1 & q2 are the two charges, r is the distance between them, and Coulomb’s Constant ke=14πϵ0=8.99×109Nm2C−2, where ϵ0 is the permittivity of free space)

r=keq1q2F−−−−−√

r=8.99×109Nm2C−2−1.60×10−19C×−1.60×10−19C1.0N−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−√

r=1.52×10−14m

Explanation:

7 0
3 years ago
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