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Misha Larkins [42]
2 years ago
12

20 points + Brainliest. Please help!

Physics
1 answer:
shtirl [24]2 years ago
3 0
C


huh jib go of kklykg Lyly y
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A load of 102 kg is support Length 2m and cross-setional area 0.1 cm² the wirers stretched by 0.22cm Find The Tensile strain and
Nostrana [21]

Answer:

Given, length of wire, l = 2m

cross sectional area , A = 10^-4 m²

Load , F = 102kgwt = 102 × 9.8 N

extension of wire, ∆l = 0.1cm = 0.001m

Longitudinal stress = F/A

= 102 × 9.8/(10^-4)

= 999.6 × 10^4 ≈ 1 × 10^7 N/m²

Longitudinal strain. = extension of wire/original length of wire = ∆l/l

= 10^-3/2 = 5 × 10^-4

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= 1 × 10^7/5 × 10^-4

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3 0
2 years ago
What is the net displacement of the particle between 0 seconds and 80seconds?
Ira Lisetskai [31]

Answer:

Option (A)

Explanation:

Displacement of a particle on a velocity time graph is represented by the area between the line representing velocity and x-axis (time).

Displacement of a particle from t = 0 o t = 40 seconds = Area of ΔAOB

Area of triangle AOB = \frac{1}{2}(\text{Base})(\text{height})

                                   = \frac{1}{2}(40)(4)

                                   = 80 m

Similarly, displacement of the particle from t = 40 to t = 80 seconds = Area of ΔBCD

Area of ΔBCD = \frac{1}{2}(40)(4)

                        = 80 m

Total displacement of the particle from t = 0 to t = 80 seconds,

= 80 + 80

= 160 m

Option (A) will be the answer.

7 0
3 years ago
Who said an atom is like a ball with no charge?
g100num [7]

Answer:

Thomson

Explanation:

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6 0
3 years ago
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