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umka2103 [35]
3 years ago
5

A frictionless pulley system connects a 150 Kg block of a flat surface with a coefficient of friction of 0.20 to a hanging 200 k

g block. Determine the tension on the cord, the frictional force of the block on the surface, acceleration of descending block, and time required for a hanging block to full 10 meters.
Physics
2 answers:
Feliz [49]3 years ago
5 0

Answer:

13

Explanation:

irakobra [83]3 years ago
3 0
Cuáles son los dos tipos de lípidos que se pueden encontraren la sangre
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<h3><u>Answer;</u></h3>

= 75 %

<h3><u>Explanation</u>;</h3>

To measure efficiency of a machine, compare the work output to work input.

Efficiency = Work output/ work output × 100 %

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                = 75 %

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An iron wire has a length of 1.50 m and a cross sectional area of 0.290 mm2. If the resistivity of iron is 10.0 ✕ 10−8 Ω · m and
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Answer:

1.35 A

Explanation:

Applying,

V = IR

I = V/R..................... Equation 1

I = Current, V = Voltage, R = Resistance.

But,

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Sustitute equation 2 into equation 1

V = AV/Lρ............... Equation 3

From the question,

Given: V = 0.7 V, A = 0.290 mm² = 2.9×10⁻⁷ m², L = 1.5 m, ρ = 10×10⁻⁸ Ω.m

Substitute these values into equation 3

I = (0.7× 2.9×10⁻⁷)/(1.5× 10×10⁻⁸ )

I = (2.03×10⁻⁷)/(15×10⁻⁸)

I = 1.35 A

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2 years ago
What is the danger to spacecraft and astronauts from micrometeoroids?
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Answer:

Suppose the micrometeoroid weighed 1 g = .001 kg

Suppose also the spacecraft were moving at 18,000 mph (1.5 hrs per rev)

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v = 18000 miles / hr * 1500 m/mile / 3600 sec/hr = 7500 m/s

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BARSIC [14]

Answer:

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Explanation:

It removes carbon naturally.

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