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Evgesh-ka [11]
4 years ago
13

Will the rocket go up or will it stay on the ground ? Explain the answer if you can also please and thank you.

Physics
1 answer:
Goryan [66]4 years ago
5 0

Answer:

the rocket will go up

Explanation:

there is less force pulling down on the rocket.

100N > 75N

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A rod 150 cm long and of diameter 2.0 cm is subjected to an axial pull of 20 kn. if the modulus of elasticity of the material of
Scilla [17]
Given:
rod of circular cross section is subjected to uniaxial tension.
Length, L=1500 mm
radius, r = 10 mm
E=2*10^5 N/mm^2
Force, F=20 kN = 20,000 N
[note: newton (unit) in abbreviation is written in upper case, as in  N ]

From given above, area of cross section = π r^2 = 100 π =314 mm^2
(i) Stress,
σ
=force/area
= 20000 N / 314 mm^2
= 6366.2 N/mm^2
= 6370 N/mm^2 (to 3 significant figures)

(ii) Strain
ε
= ratio of extension / original length
= σ / E
= 6366.2 /(2*10^5)
= 0.03183 
= 0.0318 (to three significant figures)

(iii) elongation
= ε * L
= 0.03183*1500 mm
= 47.746 mm
= 47.7 mm  (to three significant figures)

5 0
4 years ago
Which of these surfaces would have the least amount of friction?
lozanna [386]

Answer:

D.   Satin Cloth

Explanation:

i thought it said glass, not grass lol

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7 0
3 years ago
Read 2 more answers
What is the relation between electric intensity dn flux
Zepler [3.9K]

The relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.

<h3>What is the relation between electric intensity and flux?</h3>

The electric field is the field, which is surrounded by the electric charged. The electric field is the electric force per unit charge.

  • The intensity of this electric field is the number of electric field lines which are pass perpendicular to the unit element of fixed area.
  • The flux of this electric field is the number of electric field lines which are pass normally to the fixed area.

The electric flux can be given as,

d\phi =\vec E \;dA\cos \theta

When angle is zero,

d\phi =\vec E \;dA\times1\\d\phi =\vec E \;dA

Thus, the total flux is,

\phi=\oint_{}^{}\vec E.d\vec A

Thus, the relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.

Learn more about electric field here;

brainly.com/question/14372859

#SPJ4

4 0
2 years ago
Matter comprises all of them and among them are independent. what are they
telo118 [61]

<em>Matter is composed of elementary particles i.e. quarks and leptons.</em>

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