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xz_007 [3.2K]
3 years ago
8

HEY CAN ANYONE PLS ANSWER DIS!!!!!!!

Physics
1 answer:
Radda [10]3 years ago
7 0

Answer:

A) the one with the lower boiling point.

Please mark me brainliest! Hope this helped!

God bless :)

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You are given a sample of metal and asked to determine its specific heat. You weight the sample and find that its weight is 28.4
lidiya [134]

Answer:

The samples specific heat is 14.8 J/kg.K

Explanation:

Given that,

Weight = 28.4 N

Suppose, heat energy E=1.25\times10^{4}\ J

Temperature = 18°C

We need to calculate the samples specific heat

Using formula of specific heat

Q=mc\Delta T

c=\dfrac{Q}{m\Delta T}

Where, m = mass

c = specific heat

\Delta T = temperature

Q = heat

Put the value into the formula

c=\dfrac{1.25\times10^{4}}{\dfrac{28.4}{9.8}\times(18+273)}

c=14.8\ J/kg. K

Hence, The samples specific heat is 14.8 J/kg.K

8 0
3 years ago
When heat moves from the ocean to the surrounding air, which is this an example of?
Blizzard [7]
B) The transfer of energy from the hydrosphere to the atmosphere

This is because oceans are part of the hydrosphere. As the air warms it flows up into the atmosphere.

Hope this helps!
6 0
3 years ago
How does temperature increase effect collisions between molecules apex?
Fantom [35]
Temperature increase, increases the kinetic energy of the molecules. Increase in temperature is an increase in energy level so, the rate of the reaction increases, motion of the particles increase. This means the particles move faster, collide more often with each other and collide with more energy.
6 0
3 years ago
The graph shows position versus time for an object moving with the constant acceleration. what is the final velocity of the obje
natali 33 [55]

Answer:

  3.0 m/s

Explanation:

The equation of motion for constant acceleration (a) is ...

  x(t)=\dfrac{1}{2}at^2 +v_0t+x_0

The problem statement tells us v₀ = 1, and we read from the graph that x₀=1. We also read from the graph that x(10) = 21. Filling these values into the equation, we can find <em>a</em> and x'(10).

  21 = \dfrac{1}{2}a(10^2)+1(10)+1\\\\10=50a\qquad\text{subtract 11}\\\\a=\dfrac{1}{5}\\\\x'(t)=at+v_0\\\\x'(10)=\dfrac{1}{5}\cdot 10+1=3.0

The final velocity of the object at t=10 s is about 3.0 m/s.

_____

<em>Comment on the graph</em>

We note this graph better represents increasing acceleration than it does constant acceleration. x(2) = 3.4 per the equation. It is graphed as about 4.

8 0
3 years ago
Describe the laws of liquid pressure and Explain the term fluid. (Please give the correct answer, it's really urgent)​
Alla [95]

Answer:

The laws of liquid pressure are  

(i) Pressure inside the liquid increases with the depth from the free surface of the liquid.

(ii) Pressure is same at all points on a horizontal plane, in case of stationary liquid.

(iii) Pressure is same in all directions about a point inside the liquid.

(iv) Pressure at same depth is different in different liquids. It increases with the increase in the density of the liquid.

(v) A liquid will always seek its own level.

A Fluid is any liquid or gas or generally any material that cannot sustain a tangential, or shearing, force when at rest.  

Explanation:

3 0
3 years ago
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