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andreev551 [17]
3 years ago
14

What situation would give you a mechanical advantage? *

Physics
1 answer:
const2013 [10]3 years ago
3 0
D. Using a fixed-pulley system
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A soap bubble appears red (λ = 633nm) at the point on its front surface nearest to the viewer. Assuming n = 1.35, what is the sm
alexira [117]

Answer:

The smallest film thickness is 117 nm.

Explanation:

Light interference on thin films can be constructive or destructive. Constructive interference is dependent on the film thickness and the refractive index of the medium.

For the first interference (surface nearest to viewer), the minimum thickness can be expressed as:

2t_{min} = \frac{wavelenth}{2n}

where n is the refractive index of the bubble film.

Therefore,

2t_{min} = \frac{633x10^{-9} }{(2)(1.35)}

2t_{min} =2.344x10^{-7}

∴ t_{min} =\frac{2.344x10^{-7} }{2}

t_{min} = 1.17x10^{-7} m = 117 nm.

7 0
3 years ago
A bicycle odometer which counts revolutions and is calibrated to report distance traveled is attached near the wheel axle and is
Bess [88]

Answer:

each rotation of the smaller wheel will show 84.382-75.3982=8.9838 inches more than the actual distance

Explanation:

d = Diameter of the wheel

The distance traveled in one rotation of the wheel is the circumference of the wheel

\pi d=\pi\times 27\\ =84.823\ inch

When diameter is 24 inches

\pi d=\pi\times 24\\ =75.3982\ inch

Therefore, each rotation of the smaller wheel will show 84.382-75.3982=8.9838 inches more than the actual distance

6 0
3 years ago
A waiter is carrying a tray above his head and walking at a constant velocity. If he applies a force of 5.0 newtons on the tray
k0ka [10]
W = f × x = 5 × 10 = 50
4 0
3 years ago
Read 2 more answers
What does the area of an acceleration time graph represent?
Leto [7]

The area under the acceleration time graph represents change in velocity


The graph is plotted with acceleration on the vertical axis and time on the horizontal axis. The area under such graph represents change in velocity

6 0
2 years ago
Electoral punishment is a potential remedy to which of the following problems?
Harman [31]

Answer:

Election manipulation, vote rigging

Explanation:

Electoral fraud is sometimes known as election fraud or election manipulation or vote rigging is  illegal in the process of election.

 The electoral fraud changes from country to country .

The election process is conducted and supervised by the electoral bodies.

The manipulation of electoral processes and outcomes are also referred to as electoral malpractice.

In India a huge number of electoral malpractices are occurs.

It will happen by elections or candidates with strong criminal background are fighting the elections.  

4 0
3 years ago
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