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Georgia [21]
3 years ago
14

A heater marked 60w evaporates 6×10^-3kg of boiling water in 60secs what is the specific latent heat of vaporization of water in

jkg^-1
Physics
1 answer:
joja [24]3 years ago
7 0

Explanation:

Latent heat of evaporation is the heat required  to change water to vapor at the same temperature boiling temperature.(100°C)

That water turns into vapor  when heated at temperature more than 100°C without any increase in temperature.

that is latent heat of vaporization Q  = mL

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3 years ago
Please help.
Alex787 [66]

Explanation:

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<em>and</em><em> </em><em>v</em><em>=</em><em>veloc</em><em>ity</em>

<em>giv</em><em>en</em><em> </em><em>that</em><em>,</em><em> </em>

<em>kinet</em><em>ic</em><em> energy</em><em>=</em><em>4</em><em>9</em><em>3</em><em>9</em><em>0</em><em>0</em><em>J</em>

<em>mass</em><em> </em><em>=</em><em>5</em><em>0</em><em>4</em><em>0</em><em>k</em><em>g</em>

<em>maki</em><em>ng</em><em> </em><em>velo</em><em>city</em><em> </em><em>the</em><em> </em><em>su</em><em>bject</em>

<em>v =  \sqrt{ \frac{2 \times kinetic \: energy}{mass} }</em>

<em>sub</em><em>stitute</em><em> </em><em>the</em><em>ir</em><em> </em><em>valu</em><em>es</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>formu</em><em>la</em>

<em>v =  \sqrt{ \frac{2 \times 493900}{5040} }</em>

<em>v =  \sqrt{ \frac{987800}{5040} }</em>

<em>v =  \sqrt{196}</em>

<em>v = 14m {s}^{ - 1}</em>

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6 0
3 years ago
Which quantities define momentum?
grigory [225]

Answer:

A. How much matter an object has, plus the magnitude and direction  of its motion

Explanation:

Momentum is defined as the product of mass by velocity, in the international system of measurements (SI) momentum has the following Units [kg*m/s].

P = m*v

where:

P = momentum Lineal [kg*m/s]

m = mass [kg]

v = velocity [m/s]

Therefore the answer is A) How much matter an object has, plus the magnitude and direction  of its motion

7 0
3 years ago
The climate of a location is affected by the presence of
Setler [38]
<span><span>The climate of a location is affected by the presence of A Oceans.

</span>There are some climates factors that might affect the temperature of a location, these factors are latitude and attitude as well as distance from waterly places such as oceans (ocean currents).
Places along the coasts would be prevented from extremes hot or cold climates. </span>
6 0
4 years ago
Read 2 more answers
A car traveling at 25m/sec, stops in 0.103 km. what is the deceleration provided by the brakes?
lozanna [386]

Answer:

-3.03 m/s²

Explanation:

v² = v₀² + 2a(x − x₀)

where v is the final velocity,

v₀ is the initial velocity,

a is the acceleration,

x is the final position,

and x₀ is the initial position.

Given:

v = 0 m/s

v₀ = 25 m/s

x = 103 m

x₀ = 0 m

Find: a

v² = v₀² + 2a(x − x₀)

(0 m/s)² = (25 m/s)² + 2a (103 m − 0 m)

a = -3.03 m/s²

Round as needed.

7 0
3 years ago
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