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Svetach [21]
3 years ago
6

Adding heat to a liquid causes which of the following physical changes?

Physics
2 answers:
scoundrel [369]3 years ago
6 0

adding heat to liquid causes

c) decreases density


Nadya [2.5K]3 years ago
4 0
Decreases density because gases have less density than liquids
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ValentinkaMS [17]

Answer:

  • Fuel or a provided source of energy for combustion
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A classification of metamorphic rocks would indicate whether they are____
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Its either letter a or c
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A vibrating tuning fork is held over a water column with one end closed and the other open. As the water level is allowed to fal
DiKsa [7]

Answer:

630 Hz.

Explanation:

As we are considering the one end open pipe. So for the sound wave there will be a pressure node at the open end of the tube as at that place the molecules can not move back and forth. However on the closed end there will be a flow node as the water molecules their are moving back and forth. So it will produces the resonance at the positions 1/4, 3/4.......

we can find the wavelength by multiplying the levels distance by 2.

λ = 2 × 0.27 m = 0.54

f = Vs/λ

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6 0
3 years ago
5. average A body sets off from rest with a constant acceleration of 8.0 m/s? What distance will it have covered after 3.0 s? 6.
chubhunter [2.5K]

Answer:

\boxed {\boxed {\sf 36 \ meters}}

Explanation:

We are asked to find the distance a body covers. We know the initial velocity, acceleration, and time, so we will use the following kinematic equation.

d= v_i t+ \frac {1}{2} \ at^2

The body starts at rest with an initial velocity of 0 meters per second. The acceleration is 8 meters per second squared. The time is 3.0 seconds.

  • v_i= 0 m/s
  • a= 8 m/s²
  • t= 3 s

Substitute the values into the formula.

d= (0 \ m/s)(3 \ s) + \frac{1}{2} (8 \ m/s^2)(3 \ s)^2

Multiply the first set of parentheses.

d= ( 0 \ m/s * 3 \ s) + \frac{1}{2} ( 8 \ m/s^2)(3 \ s)^2

d=0 \ m + \frac{1}{2} ( 8 \ m/s^2)(3 \ s)^2

Solve the exponent.

  • (3 s)²= 3 s* 3 s= 9 s²

d= 0 \ m + \frac{1}{2}( 8 \ m/s^2)(9 \ s^2)

Multiply again.

d= 0 \ m + \frac{1}{2} ( 72  \ m)

d= 36 \ m

The body will cover a distance of <u>36 meters</u>.

5 0
2 years ago
An engineer is designing a tire for heavy machinery which statement describes the clearest criterion for the solution
Virty [35]

Answer:

I think B tell me if it's right

Explanation:

5 0
3 years ago
Read 2 more answers
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