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umka21 [38]
4 years ago
6

10). Three - fourth of the volume of a block which is floating in water extends above the surface

Physics
1 answer:
ikadub [295]4 years ago
5 0

Answer:

Explanation:

Fill the graduated cylinder partially with water to a level where you can submerge the object and drop the sinker weight into the water. If you don't have a graduated cylinder to fit your object, put a cylinder in a basin, fill it to the top with water and measure the overflow into the basin. Your answer will be less accurate because of the number of times the water has been moved. Note the amount of displacement in milliliters (ml) caused by the sinker and string.

Measure the mass of your object (say a cork) on a balance scale in grams (g). Be sure the object is dry when it is measured. Record its weight. Attach the sinker with the string to the object. If you use a staple or pin, be sure to include that when you measure the displacement of the sinker in step one.

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Answer:

True

True statement:

Because pigment molecules absorb solar energy and thylakoids are pigment molecules

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If the starting population of 5 rabbits grows at 200% each year, how many will there be 50 years?
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The mass of the sun is 2*10^30 kg and its radius is
Marta_Voda [28]

Explanation:

Distance d=1.5×108 km=1.5×1011 m

Mass of the sun, m=2×1030 kg

Mass of the earth, M=6×1024 kg

Force of gravitation, F=G×d2m×M

F=6.7×10−11×(1.5×1011)22×1030×6×1024=3.57×1022 N

4 0
3 years ago
Please answer :( gravity question for science
andreev551 [17]

The two forces acting on your body are the weight and the normal  force

Explanation:

As you sit on your chair in front of the computer, there are 2 forces acting on you:

  • The force of gravity, of magnitude mg (where m is your mass and g=9.8 m/s^2 is the acceleration of gravity), acting downward
  • The normal reaction exerted by the chair on your body, N, acting upward, and balancing your weight

We can apply Newton's second law to this situation; the law states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

\sum F = ma

where

\sum F is the net force

m is the mass

a is the acceleration

For your body sitting on the chair,

\sum F = N-mg

we also know that your body is at rest, so the acceleration is zero:

a=0

This means that the net force is zero, and therefore:

\sum F = 0 =N-mg\\\rightarrow N = mg

Learn more about Newton's second law of motion:

brainly.com/question/3820012

#LearnwithBrainly

8 0
3 years ago
A speed skater goes around a turn with a 31 m radius. The skater has a speed of 14 m/s and experiences a centripetal force of 46
dybincka [34]

Answer:

Mass of the skater, m = 72.75 kg

Explanation:

It is given that,

Radius of the circular path, r = 31 m

Speed of the skater, v = 14 m/s

Centripetal force, F = 460 N

We need to find the mass of the skater. It can be determined using the formula of centripetal force. It is given by :

F=\dfrac{mv^2}{r}

m=\dfrac{Fr}{v^2}

m=\dfrac{460\ N\times 31\ m}{(14\ m/s)^2}

m = 72.75 kg

So, the mass of the skater is 72.75 kg. Hence, this is the required solution.

4 0
4 years ago
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