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zalisa [80]
3 years ago
7

Can anyone answer this​

Physics
2 answers:
Usimov [2.4K]3 years ago
7 0

Answer:

1 True

2 False

3 False

4 True

5 True

Hope that helps you

please mark brainliest

please follow

Yuki888 [10]3 years ago
5 0

Answer:

A. true

B. false

C. false

D. ?????

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"A thin film with an index of refraction of 1.50 is placed in one of the beams of a Michelson interferometer. If this causes a s
Tamiku [17]

Answer:

The film thickness is 4.32 * 10^-6 m

Explanation:

Here in this question, we are interested in calculating the thickness of the film.

Mathematically;

The number of fringes shifted when we insert a film of refractive index n and thickness L in the Michelson Interferometer is given as;

ΔN = (2L/λ) (n-1)

where λ is the wavelength of the light used

Let’s make L the subject of the formula

(λ * ΔN)/2(n-1) = L

From the question ΔN = 8 , λ = 540 nm, n = 1.5

Plugging these values, we have

L = ((540 * 10^-9 * 8)/2(1.5-1) = (4320 * 10^-9)/1 = 4.32 * 10^-6 m

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3 years ago
A skier (down a straight course) is able to enter the starting gate with a speed of 1 m/sec and the average acceleration down th
Zigmanuir [339]
He was moving at 31 m/s
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a student measure the mass of an 8 cm^3 block of brown sugar to be 12.9 g. what is the density of the brown sugar?
schepotkina [342]
Density = mass / volume ;
1 Cubic Centimeter = 0,000001 Cubic Meter
8 cm^3 = 0.000008 m^3
12,9 g = 0,0129 kg


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4 0
4 years ago
I need help with these science questions, leave explanations please.
dimaraw [331]
Hello there.

<span>Which acid will undergo 100% dissociation when dissolved in water?

Answer:</span><span> HCL
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Option: C

Second Question...not sure.



</span>
6 0
3 years ago
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A heavy rope, 60 ft long, weighs 0.7 lb/ft and hangs over the edge of a building 140 ft high. (a) How much work W is done in pul
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Answer:

5880lb-ft of work is done

Explanation:

The length of the heavy rope is given as 60ft and the weight per length is 0.7lb/ft.

Therefore, the total weight of the heavy rope is

60×0.7 =42lb.

The work done in pulling the heavy rope to the top of the building is w = Fd.

Where

F is force is measured in pounds;42lb

d is distance through which the heavy rope is to be pulled measured in feet; 140ft

w= 42lb×140ft= 5880lb-ft

4 0
3 years ago
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