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Vikki [24]
2 years ago
14

Determine the length of the object shown 1.2 cm 1.3 cm 1.25 cm 1.250 cm

Physics
2 answers:
stiks02 [169]2 years ago
6 0

The correct answer is 1.25 because it is 1/2 of 1 1/2 and that is 1.25.

bogdanovich [222]2 years ago
5 0

The correct answer is C. 1.25 cm.

If you can see, the head of the nail stops right in the middle of the 2nd and 3rd lines after 1. This means it is 1 and .2+ .05 or 1.25.

Hope this helps!

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A plastic rod of length d = 1.5 m lies along the x-axis with its midpoint at the origin. The rod carries a uniform linear charge
Serga [27]

Answer:

Explanation:

Let the plastic rod extends from - L to + L .

consider a small length of dx on the rod on the positive x axis at distance x . charge on it =  λ dx where  λ is linear charge density .

It will create a field at point P on y -axis . Distance of point P

= √ x² + .15²

electric field at P due to small charged length

dE = k λ dx x  / (x² + .15² )

Its component along Y - axis

= dE cosθ where θ is angle between direction of field dE and y axis

= dE x .15 / √ x² + .15²

=  k λ dx  .15 / (x² + .15² )³/²

If we consider the same strip along the x axis at the same position  on negative x axis , same result will be found . It is to be noted that the component of field in perpendicular to y axis will cancel out each other . Now for electric field due to whole rod at point p , we shall have to integrate the above expression from - L to + L

E = ∫  k λ  .15  / (x² + .15² )³/² dx

=  k λ  x L / .15 √( L² / 4 + .15² )

6 0
3 years ago
How many moles are in 36g of oxygen?
ololo11 [35]

Answer:

2 moles

Explanation:

2 moles becz

1 mole of oxygen = 16

.: 2 moles of oxygen = 36

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4 0
3 years ago
1. What is technology?<br>techndegy​
Naya [18.7K]

Answer:

the application of scientific knowledge for practical purposes, especially in industry. Another answer:the sum of techniques,skills,methods and processes used in the production of goods or services or in the accomplishment of objectives, such as scientific investigation

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3 years ago
Two examples of an insulator
xz_007 [3.2K]

Some examples of insulators are plastic, glass and rubber.

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A 500kg wagon is pushed against a wall with a spring between the wall and the wagon. The spring has a stiffness coefficient of 3
andreyandreev [35.5K]

Answer: 0.36 meter per second square

Explanation from hooke's law f = ke

from motion, F=ma

Ma=me

Where a= ?

K=300

e=0.6

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500×a =300×0.6

a = 180÷500

a = 0.36 meter per second square

5 0
2 years ago
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