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Thepotemich [5.8K]
3 years ago
8

25. You are asked to find the area of a room that is 4.56 m long and 5.668 m wide. How many significant

Physics
1 answer:
just olya [345]3 years ago
4 0

Answer:

Option B

3

Explanation:

The two dimensions have the following significant numbers

4.56- 3 significant numbers

5.668- 4 significant figures

When responding, we give area as per the most precise number given hence the smallest (most precise) significant figures in these two numbers is 3. Therefore, the area will be given to 3 significant figures ie

4.56*5.668=25.84608  square meters

Area=25.8 square meters

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victus00 [196]

Explanation:

Its D. The warm air from the land moves towards the water

7 0
3 years ago
What is the density (in kg/m3) of a woman who floats in freshwater with 4.92% of her volume above the surface
kipiarov [429]

Answer:

The density of the woman is 950.8 kg/m³

Explanation:

Given;

fraction of the woman's volume above the surface = 4.92%

then, fraction of the woman's volume below the surface = 100 - 4.92% = 95.08%

the specific gravity of the woman = \frac{95.08}{100 } = 0.9508

The density of the woman is calculate as;

Specific \ gravity \ of \ the \ woman = \frac{Density \ of \ the \ woman }{Density \ of \ fresh \ water }\\\\ Density \ of \ the \ woman  = Specific \ gravity \ of \ the \ woman \ \times \ Density \ of \ fresh \ water

Density of fresh water = 1000 kg/m³

Density of the woman = 0.9508 x 1000 kg/m³

Density of the woman = 950.8 kg/m³

Therefore, the density of the woman is 950.8 kg/m³

4 0
3 years ago
Bone has a Young’s modulus of about
MArishka [77]

Answer:

Explanation:

Bone has a Young’s modulus of about

1.8 × 1010 Pa . Under compression, it can

withstand a stress of about 1.66 × 108 Pa before breaking.

Assume that a femur (thigh bone) is 0.56 m

long, and calculate the amount of compression

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6 0
4 years ago
A 2.5 kg ball rolls forward at 10.0 m/s. What is the ball's momentum?​
Anuta_ua [19.1K]

Answer:25kgm/s

Explanation:

mass=2.5kg

Velocity=10m/s

Momentum=mass x velocity

Momentum=2.5 x 10

Momentum=25kgm/s

4 0
4 years ago
3. Why is a subducting plate boundary considered a type of<br> convergent plate boundary?
JulsSmile [24]

Answer:

✔ convergent

Explanation:

5 0
3 years ago
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