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stiv31 [10]
3 years ago
9

if you ride a bike at 2 km/h and travel a total distance of 20km, how long willnit takr ( in second) you to teach your destinati

on
Physics
1 answer:
Rzqust [24]3 years ago
3 0

Time = (20 km) x (1 hr/2 km) x (3,600 sec/hr)

Time = (20 x 1 x 3,600 km-hr-sec) / (2 km-hr)

Time = (20 x 1 x 3,600 / 2) (km-hr-sec / km-hr)

Time =<em> 36,000 seconds</em>

(That's 10 hours.)

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What happens to the distance between interference fringes if the separation between two slits is increased?
kolezko [41]

Answer:

It will decrease

Explanation:

The double-slit interference equation, which gives us the position y of a maximum on the screen (measured relative to the central position), is

y=\frac{n\lambda D}{d}

where

n is the order of the maximum

D is the distance between the slits and the screen

\lambda is the wavelength of the light

d is the separation between the two slits

From the formula, we see that y is inversely proportional to d: this means that if the separation between the slits is increased, the distance of each maximum from the central position (y) decreases, therefore the distance between the interference fringes will decrease.

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3 years ago
A mass of 0.250 kg is attached to a spring and undergoes simple harmonic oscillations with a period of 0.640 s. What is the forc
Paha777 [63]

The force constant of the spring is approximately 24.038 newtons per meter.

As we are talking about Simple Harmonic Motion. In this exercise we need to determine the Spring Constant (k), in newtons per meter, from the equation of the Period (T), in seconds, which is described below:

T = 2\pi\cdot \sqrt{\frac{m}{k} } (1)

Where m is the mass of the moving element, in kilograms.

If we know that T = 0.640\,s and m = 0.250\,kg, then the spring constant of the spring is:

0.640 = 2\pi\cdot \sqrt{\frac{0.250}{k} }

\sqrt{\frac{0.250}{k} } \approx 0.102

\frac{0.250}{k} \approx 0.0104

k \approx 24.038\,\frac{N}{m}

The force constant of the spring is approximately 24.038 newtons per meter.

Please see this question related to Simple Harmonic Motion for further details: brainly.com/question/17315536

6 0
3 years ago
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Answer:

The law of multiple proportions states that when two elements can combine in different ratios to form different compounds, the masses of the element combining with the fixed mass of another element result in whole number ratios. This shows that the law of multiple proportions is followed

Explanation:

5 0
4 years ago
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uysha [10]
Astrophysics is the answer
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3 years ago
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With the frequency set at the mid-point of the slider and the amplitude set at the mid-point of the slider, approximately how ma
Gre4nikov [31]

Answer:

correct answer is b

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Consequently the amplitude of independent of the frequency because it depends on different factors.

Therefore when changing the amplitude the wavelength remains constant

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