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ArbitrLikvidat [17]
3 years ago
8

Is this right? if not how do u do it?

Physics
1 answer:
Ronch [10]3 years ago
3 0
You've definitely got the right idea and your procedure is correct.

But I see one mistake for sure, plus a few other things that
I'm not sure of.

The mistake for sure:  If the ending water is 12 ml,
then the beginning water is 9 ml, not 11 ml.

Things I'm not sure of:

-- I'm not sure that I'm remembering correctly at the moment,
but I have a sneaking hunch that you're supposed to read the
level at the BOTTOM of the meniscus, not the top.
It won't matter, because the DIFFERENCE will be the same
either way.  But if the teacher wants you to read from the bottom,
then your numbers may be marked wrong.

-- The question at the bottom asks for the "volume of cherry",
but I seem to see TWO cherries in the water.  Does than mean
they expect you to take only half of the displacement ?

-- They ask for "volume of cherry" twice.
Maybe that means they want you to end up with the volume in cm³
instead of ml.  (The number is the same.)
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A section of a sphere has a radius of curvature of 0.72 m. If this section is painted with a reflective coating on both sides, w
vaieri [72.5K]

Answer:

The value is  f = 0.36 \  m

Explanation:

From the question we are told that

  The radius of curvature is  R =  0.72 \  m

   

Generally the radius of curvature is mathematically represented as

        R  =  2f

Here f is the focal length hence

       f =  \frac{R}{2}

=>     f =  \frac{0.72}{2}

=>     f = 0.36 \  m

3 0
3 years ago
The ratio of the number of pigs to the number of horse in a farm is 2 to 3 (2:3), if therected are 24 horses, what is the number
pickupchik [31]

Answer:

16 pigs

Explanation:

Let the horses be H.

Let the pigs be P

Let the total number of animals be x.

Given the following data;

Ratio of P to H = 2:3 = 2 + 3 = 5

Number of horses = 24

To find the number of pigs;

First of all, we would determine the total number of animals x.

From the ratio of horse, H:

3/5 * x = 24

Cross-multiplying, we have;

3x = 120

x = 120/3 = 40

Next, we find the number of pigs;

Pigs = 2/5 * 40

Pigs = 80/5 = 16 pigs

5 0
3 years ago
Which of the following is not characteristic of a thunderstorm?
blsea [12.9K]

Answer:

option is option d)

Explanation:

the correct option is option d)

the characteristic of thunderstorm  can be seen by the following scenario

in thunderstorm there is lot of movement of air the lighter i.e.warmer air moves up and the colder air moves down creating the condition of thunderstorm.

heavy rain , strong wind , potentially large hail stones is the situation of the thunderstorm.

during thunderstorm there is rain and snow at intermediate.

hence only option left is option d.

7 0
3 years ago
Is a 10 year old supposed to be doing algebra
forsale [732]
If he feels like, is interested in it, and is able to grasp it, then why not ? Why not indeed ?
3 0
3 years ago
Read 2 more answers
2. For a rotating rigid body, which of the following statements is NOT correct?
AfilCa [17]

Answer:

                                                dasgfwe

Explanation:

6 0
4 years ago
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