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ankoles [38]
3 years ago
5

you are carrying a stack of boxes across the room. when you come to a sudden stop, some of the boxes fall forward off of the top

of the stack. which law of motion is it?
Physics
1 answer:
NemiM [27]3 years ago
5 0
This is the law of inertia.
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"In a Young’s double-slit experiment, the separation between slits is d and the screen is a distance D from the slits. D is much
san4es73 [151]

Answer:

The number of bright fringes per unit width on the screen is, x=\dfrac{\lambda D}{d}      

Explanation:

If d is the separation between slits, D is the distance between the slit and the screen and \lambda is the wavelength of the light. Let x is the  number of bright fringes per unit width on the screen is given by :

x=\dfrac{n\lambda D}{d}

\lambda is the wavelength

n is the order

If n = 1,

x=\dfrac{\lambda D}{d}

So, the the number of bright fringes per unit width on the screen is \dfrac{\lambda D}{d}. Hence, the correct option is (B).

6 0
2 years ago
A book starts on a shelf 1 m off of the ground. You then move the book to a higher shelf that is 3 m off of the ground. If the s
JulsSmile [24]

Answer:

Using g = 9.8: 1.02 kg, Using g = 10: 1 kg

Explanation:

E = mgh

20 = m(9.8)(3 - 1)

20 = 9.8m(2)

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I'm now assuming you may be using a g constant of 10, thus the close integer result, in which case the mass would be exactly 1 kilogram.

4 0
3 years ago
A cruise started its trip 8:00. Its average speed was 100 km/h.
Aneli [31]

Answer:

120 k/m

Explanation:

5 0
2 years ago
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What are two different examples of positive exeleration
sdas [7]

Answer:Accelerating your car to get up to speed on a freeway

An airplane accelerating to take off

Accelerating out of the starting blocks at a track meet

Explanation:

5 0
3 years ago
A particle could have a charge of
tekilochka [14]
The correct answer is 
<span> (3) 3.2 × 10^−19 C

In fact, electric charge is quantized: the elementary charge is the charge of the electron, </span>e=1.6 \cdot 10^{-19} C, and every particle can only have an electric charge which is an integer multiple of this value. Of the options listed above, only option (3) is an integer multiple of the elementary charge: in fact, it corresponds to 2 times the electron charge:
2e=2 \cdot 1.6 \cdot 10^{-19} C=3.2 \cdot 10^{-19} C
7 0
3 years ago
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