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lianna [129]
3 years ago
13

Example 4.4

Physics
1 answer:
Dmitry [639]3 years ago
3 0

Answer:

  • 0.0002012
  • 0.0002192

Explanation:

Using apparent = mass of liquid expelled/mass of liquid remaining × temp. rise

Mass expelled: 250-248.5=1.5g

Mass remaining =248.5g

Temp. rise= 60-30= 30ºc

= 1.5/248.5×30=0.0002012

Using real= apparent + cubic expansivty

Cubic= 3 × linear expansivty

= 3×0.000006=0.000018

0.0002012+0.000018=0.0002192

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Match these terms with the correct examples.
posledela
1. liquid solution to a. oceans
2. gaseous solution to b. clouds
Not sure about 3 and 4.
3 might be oxygen but I think that's 5. element.

Hope this helps, not sure about water and air though.
4 0
4 years ago
Read 2 more answers
A solenoid of radius r 5 1.25 cm and length , 5 30.0 cm has 300 turns and carries 12.0 A. (a) Calculate the flux through the sur
Elina [12.6K]

Answer:

\phi = 7.4 \times 10^{-6} Wb

Explanation:

Magnetic field due to a long solenoid at the center is given by

B = \frac{\mu_o N i}{L}

here we know that

N = 300

L = 30 cm

i = 12 A

now magnetic field is given as

B = \frac{(4\pi \times 10^{-7})(300)(12)}{0.30}

B = 0.015 T

Now magnetic flux through the disc is given as

\phi = B.A

\phi = (0.015)(\pi r^2)

\phi = (0.015)(\pi)(0.0125)^2

\phi = 7.4 \times 10^{-6} Wb

8 0
3 years ago
If a cheetah runs 352 meters in 20 seconds, what is the speed of the cheetah?
valina [46]

Answer:

63360 mi/h

Explanation:

<u>How to find the speed of an object</u>

Calculate speed, distance, or time using the formula d = st, distance equals speed times time. The Speed Distance Time Calculator can solve for the unknown SDT value given two known values.

Time can be entered or solved for in units of second S (s), minutes (min), hours (hr), or hours and minutes and seconds (hh:mm: ss). See shortcuts for time formats below.

To solve for distance use the formula for distance D = st, or distance equals speed times time.

distance = speed x time

Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t. You can use the equivalent formula d = rt which means distance equals rate times time.

distance = rate x time

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

speed = distance/time

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

time = distance/speed

Therefore, the speed = 63360 miles per hour

= 63360 mi/h

5 0
3 years ago
Light behaves primarily as a wave when it
Jet001 [13]

is in motion and that is by newtons 3rd law

also your answer would be law of motion

7 0
3 years ago
A new system of units is invented where the basic unit of length is the "dak." The "dak" is defined as equal to 3 inches, and th
Goryan [66]

Answer:

1 cm = 0.131 daks

Explanation:

It is given that,

1 dak = 3 inches

and

1 inch = 2.54 cm

We need to find how many "daks" are there in a centimeter. We can do the conversions as follows :

1\ dak=1\ dak\times \dfrac{3\ inches}{1\ dak}\times \dfrac{2.54\ cm}{1\ inch}

1\ dak=7.62\ cm

1\ cm=\dfrac{1}{7.62}\ dak

1 cm = 0.131 dak

So, there are 0.131 daks in 1 centimeter. Hence, this is the required solution.

5 0
3 years ago
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