2 years ago

Electrical current in a wire

1 answer:

6 0

The electrical current in a wire could be from multiple things. This is how we wire our house. When the electrical current flows through the wire, it can power things like lights and appliances. The things that flow through a wire are called electrons.

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How much work must be done on a 750 kg car to slow it down from 1.0 x 10 km/h to 2 50.0 km/h?

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Answer:

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2 years ago

What it 1 Newton force

mote1985 [20]

Answer:

1 kg⋅m⋅s−2

Explanation:

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2 years ago

A man supports himself and the uniform horizontal beam pulling the rope with a force T.The weights of men and the beam are 883 N

artcher [175]

Answer:

T=502.5N

Ax=171.8N

Explanation:

The computation of the tension T in the rope and the forces exerted by the pin at A is shown below:

vertical forces sum = Ay + Tsin20 + T - 245 - 883 = 0

Now

horizontal forces sum = Ax - Tcos70

Now Moment about B

-Ay × 4.8 + 245 × 2.4 + 883 × 1.8=0

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2 years ago

A 0.46-kg cord is stretched between two supports, 7.2 m apart. When one support is struck by a hammer, a transverse wave travels

Kryger [21]

Answer:

T = 6.0 N

Explanation:

given,

mass of the cord = 0.46 Kg

length of the supports = 7.2 m

time taken to travel = 0.74 s

tension in the chord = ?

using formula for tension calculation

$T = \dfrac{v^2.m}{l}$

$v = \dfrac{l}{s}$

$v = \dfrac{7.2}{0.74}$

v = 9.73 m/s

now, calculation of tension

$T = \dfrac{9.73^2\times 0.46}{7.2}$

T = 6.0 N

The tension in the cord is equal to 6.0 N.

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2 years ago

Which of the following is a densit-independent factor

Gnom [1K]

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3 years ago