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adell [148]
3 years ago
11

Which of the following values represents an index of refraction of an actual material?

Physics
1 answer:
Airida [17]3 years ago
3 0

The answer is <em>B. 5/4</em> or <em>1.25</em>

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A glass ball of radius 3.74 cm sits at the bottom of a container of milk that has a density of 1.04 g/cm3. The normal force on t
Gelneren [198K]

Answer:

The mass of the ball is 0.23 kg

Explanation:

Given that

radius ,r= 3.74 cm

Density of the milk ,ρ = 1.04 g/cm³ = 1.04  x 10⁻³ kg/cm³

Normal force ,N= 9.03 x 10⁻² N

The volume of the ball V

V=\dfrac{4}{3}\pi r^3

V=\dfrac{4}{3}\times \pi \times 3.74^3\ cm^3

V= 219.13 cm³

The bouncy force on the ball = Fb

Fb = ρ V g

Fb  + N = m g

m=Mass of the ball = Density x volume

m = γ V    , γ =Density of the Ball

ρ V g  + N =  γ V g               ( take g= 10 m/s²)

\gamma =\dfrac{N+\rho V g}{V g}

\gamma =\dfrac{9.03\times 10^{-2}+1.04\times 10^{-3}\times 219.13\times  10}{219.13\times 10}

γ = 0.00108 kg/cm³

m = γ V

m = 0.00108 x 219.13

m= 0.23 kg

The mass of the ball is 0.23 kg

5 0
2 years ago
The weight of a box is found to be 30 N. What is the approximate mass of the box?
KengaRu [80]
The mass of the box would be 30!
3 0
3 years ago
Read 2 more answers
Pls help me quickly ......​
marishachu [46]

Answer:

the last one: weight force

3 0
3 years ago
Please help ASAP will mark brainliest How do we find the amount of uncertainty we should expect in our measurement of the period
kicyunya [14]

Answer:

The relative uncertainty gives the uncertainty as a percentage of the original value. Work this out with: Relative uncertainty = (absolute uncertainty ÷ best estimate) × 100%. So in the example above: Relative uncertainty = (0.2 cm ÷ 3.4 cm) × 100% = 5.9%. The value can therefore be quoted as 3.4 cm ± 5.9%.

Explanation:

hope it helps :)

4 0
3 years ago
What was created 300 years ago by scientist carolus linnaeus
Norma-Jean [14]
<span>the classification system</span>
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2 years ago
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