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kap26 [50]
3 years ago
6

According to the law of conservation of mass, which of these is true.

Physics
1 answer:
dimaraw [331]3 years ago
8 0
C because mass is how much space an object takes up
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-) Given that 1 inch = 0.0254 m, 1 mile = 1760 yards and 1 yard = 36 inches. Convert 5
soldier1979 [14.2K]

Answer:

8.04672 KM

Explanation:

5 miles = 5×1760 yards = 8800 yards

8800 yards = 8800×36 inches = 316800 inches

316800 inches = 316800 x 0.0254 m = 8046.72 m

8046.72 m = 8.04672 kilometers

6 0
3 years ago
Describe the parts of the wheel and axle
suter [353]

Answer:

A simple machine that may be used the most often is called the wheel and axle. The wheel and axle has two basic parts: wheel and axle.  It has two circular objects which includes a larger disc and a small cylinder both joined at the center.

Explanation:

8 0
2 years ago
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13.4. Young's modulus for iron is 1.9 x 10' Pa. When an iron wire 1.0 m long with a cross-sectional area of 4.0 mm
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Answer:

0.0129 m

Explanation:

ΔL = FL / (EA)

where ΔL is the deflection,

F is the force,

L is the initial length,

E is Young's modulus,

and A is the cross sectional area.

F = mg = 100 kg × 9.8 m/s² = 9800 N

A = 4.0 mm² × (1 m / 1000 mm)² = 4×10⁻⁶ m²

ΔL = (9800 N) (1.0 m) / ((1.9×10¹¹ Pa) (4×10⁻⁶ m²))

ΔL = 0.0129 m

6 0
3 years ago
What is the speed of sound in solid? <br>​
sasho [114]
The speed of sound in a solid would be 6000 metres per second
7 0
2 years ago
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. Determine if approximate cylindrical symmetry holds for the following situations. State why or why not. (a) A 300-cm long copp
MA_775_DIABLO [31]

Answer:

a) Yes

b) No

Explanation:

In the first case, part a, yes we can say for certainty that cylinderical symmetry holds. Why so? You may ask. This is because from the question, we are told that the length of the rod is 300 cm. And this said length is longer than the distance to the point from the center of the rod, which is 5 cm.

In the second half of the question, I beg to disagree that cylindrical symmetry holds. Again, you may ask why, this is because the length of the rod in this case, is having the same order of magnitude as the distance to the center of the rod. Thus, it is not symmetrical.

6 0
2 years ago
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