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2 years ago

7

The reverse process of changing a liquid to a solid is called ............... or .................... . When a liquid change to

a gas on heating, this change of state is known as ..............

2 answers:

malfutka [58]2 years ago

4 0

Answer:

freezing

evaporation

Explanation:

Rama09 [41]2 years ago

3 0

Answer:

1- Melting

2- vaporization

Explanation:

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А masd<br>Of 500kg a raised to a height of 6m In 30s<br>Find (a) Workdone .

Mazyrski [523]

Answer:

Work done is 882000joule.

power is 29400watt.

Explanation:

given,

Mass(m)=500kg

Acceleration due to gravity(g)=9.8m/s²

Height(h)=6m

Time taken(t)=30s

Workdone=?

Power=?

now,

workdone=force*displaxement

= m*g*h

=500*9.8*6

=8,82,000joule

so, the work done by the man is 8,82,000joule.

then,

power=workdone/time taken

=8,82,000/30

=29,400watt

so, the required power to lift a load is 29,400watt.

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2 years ago

Por favor. Escribe en Notación científica las siguientes medidas:

Zolol [24]

I don’t understand Spanish could you please translate

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2 years ago

Two parallel wires are separated by 6.10 cm, each carrying 2.85 A of current in the same direction. (a) What is the magnitude of

Westkost [7]

Answer:

The force per unit length is $2.66 \times 10^{-5} \ N/m$

Explanation:

The current carrying by each wires = 2.85 A

The current in both wires flows in same direction.

The gap between the wires = 6.10 cm

Now we will use the below expression for the force per unit length. Moreover, before using the below formula we have to change the unit centimetre into meter. So, we just divide the centimetre with 100.

$F/l = \frac{\mu _0i_1 i_2}{2\pi d} \\i_1 = 2.85 \\i_ 2 = 2.85 \\\mu _0 = 4\pi \times 10^{-7} \\d = 0.061 \\F/l = \frac{4\pi \times 10^{-7} \times 2.85 \times 2.85}{2 \pi \times 0.061} \\= 2.66 \times 10^{-5} \ N/m$

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3 years ago

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A restaurant records the number of tables served each night, and the results have the values: minimum = 3, lower quartile = 14,

dybincka [34]

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1 year ago