3 years ago

What is measurement ?

Physics

1 answer:

zaharov [31]3 years ago

3 0

Answer:

Measurement is the value of the size or extent of something or someone.

Explanation:

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A 1.0 kg copper rod rests on two horizontal rails 1.0 m apart and carries a current of 50 A from one rail to the other.

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Answer

given,

mass of copper rod = 1 kg

horizontal rails = 1 m

Current (I) = 50 A

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magnetic force acting on a current carrying wire is

F = B i L

Rod is not necessarily vertical

$F_x =i L B_d$

$F_y= i L B_w$

the normal reaction N = mg-F y

static friction f = μ_s (mg-F y )

horizontal acceleration is zero

$F_x-f = 0$

$iLBd = \mu_s(mg-F_y )$

B_w = B sinθ

B_d = B cosθ

iLB cosθ= μ_s (mg- iLB sinθ)

$B = \dfrac{\mu_smg}{i(cos\theta +\mu_s sin\theta)}$

$\theta =tan{-1}{\mu_s}$

$\theta =tan{-1}{0.6}$

$\theta = 31^0$

$B = \dfrac{0.6\times 1 \times 9.8}{50(cos31^0 +0.6 sin31^0)}$

B = 0.1 T

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Which best describes how geothermal energy is used to make electricity?. . A.. Rocks are split to release energy that drives a s

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a sound pulse emitted underwater reflects off a school of fish and is detected at the same place 0.01 s later. how far away are

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