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2 years ago

HELP PLEASE ASAP!!! I CAN'T FAIL PHYSICS xoxo thank you!

Physics

1 answer:

Allushta [10]2 years ago

5 0

They are malleable and lustrous, and can conduct both electricity and thermal heat

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A copper wire of resistivity 2.6 × 10-8 Ω m, has a cross sectional area of 35 × 10-4 cm2

KengaRu [80]

Answer:

the length of the wire is 134.62 m.

Explanation:

Given;

resistivity of the copper wire, ρ = 2.6 x 10⁻⁸ Ωm

cross-sectional area of the wire, A = 35 x 10⁻⁴ cm² = ( 35 x 10⁻⁴) x 10⁻⁴ m²

resistance of the wire, R = 10Ω

The length of the wire is calculated as follows;

$R = \frac{\rho L}{A} \\\\L = \frac{RA}{\rho} \\\\L= \frac{10 \times (35\times 10^{-4}) \times 10^{-4}}{2.6 \times 10^{-8}} \\\\L = 134.62 \ m$

Therefore, the length of the wire is 134.62 m.

6 0

2 years ago

A scientist is asking you what would happen to Radon-226 (represented by Ra on the graph and 226 is the atomic mass) if instead

ladessa [460]

The sky legit green today

6 0

2 years ago

Please help! thank you!

icang [17]

Answer:

A: The kinetic energy of the two vehicles is transferred to potential energy when it stops.

B: The more mass an object has the more kinetic energy it will have.

Explanation:

This may be the right answer for your question but if it isn't my bad.

6 0

2 years ago

What is the maximum number of atoms that can be bonded in an ionic bond

Dima020 [189]

A maximum of four bonds can be used between two atoms.

Explanation:

Ionic bond is one of the strongest bond used in chemical reaction where the valence electrons are bonded and shared between the atoms. Sometimes four covalent bonds between two atoms might make them unstable as the bonds are formed in their outermost shell to make them to form or complete a total of 8 in their shell. For example carbon has 3 as maximum.

6 0

3 years ago

The blank the value of coefficient of friction the greater the resistance to sliding

expeople1 [14]

Answer:

The HIGHER value of coefficient of friction the greater the resistance to sliding

Explanation:

As we know that friction force is given by

$F_f = \mu F_n$

so friction force is the product of friction coefficient and normal force.

So here we can say that if friction coefficient is higher then the friction force will be more as it is product of friction coefficient and normal force.

So correct answer will be given as

The HIGHER value of coefficient of friction the greater the resistance to sliding

8 0

3 years ago

Read 2 more answers