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dem82 [27]
3 years ago
15

How does wheel and axle work ?​

Physics
1 answer:
Zanzabum3 years ago
7 0

Answer:

This system uses angular momentum and torque to do work on objects, typically against the force of gravity. The wheel and axle simple machine is closely related to gears.

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A spring on Earth has a 0.500 kg mass suspended from one end and the mass is displaced by 0.3 m. What will the displacement of t
Alisiya [41]

Answer:

The displacement of the same mass on the same spring on the Moon is 0.05 m.

Explanation:

Given;

mass suspended from one end of the spring, m = 0.500 kg

displacement on the spring on Earth, x = 0.3 m

Apply Newton's second law of motion;

F = ma = mg

where;

m is mass on the spring

g is acceleration due to gravity

Also, apply Hook's law;

F = Kx

where;

K is force constant

x is extension or diplacement of the spring

Combine the two equations from the two laws;

mg = kx

when the spring in on Earth;

0.5 x 9.8 = 0.3k

4.9 = 0.3k

k = 4.9 / 0.3

k = 16.333 N/m

when the spring is on moon;

mg = kx

mass is the same = 0.5 kg

acceleration due to gravity on moon = ¹/₆ that of Earth =  ¹/₆  x 9.8 m/s²

0.5 (¹/₆  x 9.8) = 16.333 x

0.8167 = 16.333 x

x = 0.8167 / 16.333

x = 0.05 m

Therefore, the displacement of the same mass on the same spring on the Moon is 0.05 m.

4 0
3 years ago
A hot-water radiator has a surface temperatue of 80 o C and a surface area of 2 m2 . Treating it as a blackbody, find the net ra
faust18 [17]

Answer:

925.04 J/s

Explanation:

T = 80 C = 80 + 273 = 353 K

To = 20 c = 20 + 273 = 293 K

A = 2 m^2

Use the formula for Stefan's law

Energy radiated per second

E = \sigma  A \left ( T^{4}-T_{0}^{4} \right )

E = 5.67 \times 10^{-8}\times 2\left ( 353^{4}-293^{4} \right )

E = 925.04 J/s

3 0
3 years ago
How do the lens of a light microscope work
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The smallest one is  the least powerful one. And the medium size one is the medium powerful one. And the largest one is the most powerful one of them all

8 0
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The key to making a concise mathematical definition of escape velocity is to consider the energy. If an object is launched at it
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Answer:

dado os monômios X elevado a 2 + 2 elevado a 2 menos 6 elevado a 2 a redução dos monômios está representado na questão em que os monômios a seguir eles representam quatro graus dê valor numérico da expressão m + n = 20 x elevado a 7 Y.

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The sun is located in
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Milky Way Galaxy, same one as you.
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3 years ago
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