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3 years ago

Volume of water shrinks between__

Physics

2 answers:

Lena [83]3 years ago

8 0

Answer:

when liquid water is cooled it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that it expands slightly until it reaches the freezing point and then when it freeze it expands by Approximately 9percent

lorasvet [3.4K]3 years ago

5 0

Answer:

When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

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Which describes the adiabatic process? Check all that apply.

kiruha [24]

Answer:

heat is not absorbed by the system

A rapid shift occurs between gas compression and expansion.

All heat is transformed to work done by the system.

Explanation:

7 0

4 years ago

Read 2 more answers

17 copper wires of length l and diameter d are connected in parallel to form a single composite conductor of resistance R. What

Lubov Fominskaja [6]

Answer:

$\frac{D}{d} = 4.12$

Explanation:

As we know that resistance of one copper wire is given as

$r = \rho \frac{L}{a}$

here we know that

$a = \pi (\frac{d}{2})^2$

now we have

$r = \rho \frac{L}{\pi (\frac{d^2}{4})}$

$r = \rho \frac{4L}{\pi d^2}$

now we know that such 17 resistors are connected in parallel so we have

$R = \frac{r}{17}$

$R = \rho \frac{4L}{17 \pi d^2}$

Now if a single copper wire has same resistance then its diameter is D and it is given as

$R = \rho \frac{4L}{\pi D^2}$

now from above two equations we have

$\rho \frac{4L}{\pi D^2} = \rho \frac{4L}{17 \pi d^2}$

$D^2 = 17 d^2$

now we have

$\frac{D}{d} = 4.12$

3 0

3 years ago

Language uses_ to quickly express concepts and ideas

ludmilkaskok [199]

Answer:

i try B

Explanation:

7 0

4 years ago

Read 2 more answers

Which body is in equilibrium?

zloy xaker [14]

Which body is in equilibrium?

(1) a satellite orbiting Earth in a circular orbit . No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. That's a centripetal force, and the satellite is experiencing centripetal acceleration.

(2) a ball falling freely toward the surface of Earth. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The ball is accelerating toward the ground.

<em> (3) a car moving with a constant speed along a straight, level road. YES.</em> We don't even need to analyze the forces, just look at the car. It's moving in a straight line, and its speed is not changing. The car's acceleration is zero ! That right there tells us that the NET force ... the sum of all forces acting on the car ... is zero. THAT's called 'equilibrium'.

(4) a projectile at the highest point in its trajectory. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The projectile is accelerating toward the ground.

7 0

3 years ago

If there are 1,600 meters in a mile, find the speed of sound in this experiment in units of "miles / hour"

atroni [7]

Answer:

v = 771.75 mile / h

Explanation:

The speed of sound is v = 343 m / s at T= 20C

the transformation ratios are

1 mile = 1600 m

1 h = 3600 s

Let's reduce

v = 343 m / s (1 mile / 1600 m) (3600 s / 1 h)

v = 771.75 mile / h

4 0

4 years ago

Volume of water shrinks between__​

Volume of water shrinks between__