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Semenov [28]
3 years ago
14

A mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius R of 0.140 m in the apparatus used in this labo

ratory. What is the rotation period for a mass of 0.550 kg at the same radius
Physics
1 answer:
Mamont248 [21]3 years ago
7 0

Answer:

1.603 s

Explanation:

Given that

Initial mass, = 0.45 kg

Initial period, = 1.45 s

Initial radius, = 0.14 m

Final mass, = 0.55 kg

Final period, = ?

Final radios, = 0.14 m

Since we are finding the rotation period of two masses of same radius, we can assume that the outward force is the same in both cases. This means that

m₁r₁ω₁² = m₂r₂ω2²

Where, ω = 2π/T, on substituting, we have

0.45 * 0.14 * (2π / 1.45)² = 0.550 * 0.14 * (2π / T₂)²

0.45 / 1.45² = 0.550 / T₂²

T₂² = 0.550 * 1.45² / 0.45

T₂² = 2.56972

T₂ = √2.56972

T₂ = 1.603 sec

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bogdanovich [222]

Answer:

N = 3.54 * 10²³ atoms

Explanation:

The formula to apply here is the idea gas law;

PV = nRT  where ;

P= pressure of the gas= 1.013 * 10⁵ Pa

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R= ideal gas constant= 8.314

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Applying the values to the formula;

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1.013 * 10⁵ * 0.01414 = n * 8.314*293

n= 1.013 * 10⁵ * 0.01414 / 8.314*293

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0.588 moles = 0.588 * 6.022 * 10²⁷

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3 years ago
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vova2212 [387]
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4 years ago
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2. 3. 4. 5. 6. 7. A(n)results when a vehicle loses part or all of its grip on the road. is a technique that can be applied when
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Answer:

1) Skid

2)<u> </u>Rocking

3) Oversteer situation

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5) Overdriving headlights

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7) Understeer situation

Explanation:

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2)<u> Rocking</u> is a technique that can be applied when trying to move your vehicle out of deep snow

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7 0
3 years ago
What is the average atomic mass of an element?
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What are the units for the spring constant,k?
dybincka [34]

Answer:

\frac{kg}{s^2} or \frac{N}{m}

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5 0
3 years ago
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