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3 years ago

What is the name given to the specific latent heat of a

Physics

2 answers:

SCORPION-xisa [38]3 years ago

7 0

Answer:

the heat of fusion

Explanation:

viva [34]3 years ago

4 0

Answer:

The 'enthalpy' of fusion is a latent heat,

Explanation:

because, while melting, the heat energy needed to change the substance from solid to liquid at atmospheric pressure is latent heat of fusion, as the temperature remains constant during the process.

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3 years ago

A horizontal spring with spring constant 950 N/m is attached to a wall. An athlete presses against the free end of the spring, c

OLga [1]

Answer:

66.5N

Explanation:

F = kx

Where F = force

K = spring constant

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Given

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3 years ago

A 120-kg object and a 420-kg object are separated by 3.00 m At what position (other than an infinitely remote one) can the 51.0-

djverab [1.8K]

Answer:

1.045 m from 120 kg

Explanation:

m1 = 120 kg

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m = 51 kg

d = 3 m

Let m is placed at a distance y from 120 kg so that the net force on 51 kg is zero.

By use of the gravitational force

Force on m due to m1 is equal to the force on m due to m2.

$\frac{Gm_{1}m}{y^{2}}=\frac{Gm_{2}m}{\left ( d-y \right )^{2}}$

$\frac{m_{1}}{y^{2}}=\frac{m_{2}}{\left ( d-y \right )^{2}}$

$\frac{3-y}{y}=\sqrt{\frac{7}{2}}$

3 - y = 1.87 y

3 = 2.87 y

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Thus, the net force on 51 kg is zero if it is placed at a distance of 1.045 m from 120 kg.

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4 years ago

For which length of wire are the readings of resistance the most precise

levacccp [35]

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3 years ago