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FrozenT [24]
3 years ago
7

A student is creating a model of a concave lens. The diagram shows her incomplete model.

Physics
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

D

Explanation:

I’m pretty sure it’s correct but I don’t really know. Just trying to pass science

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Choir members are traditionally grouped into four main vocal registers: bass,
Bond [772]

Answer:

The bass has the lowest frequency ,it only causes vibrations but at a lower frequency

7 0
3 years ago
A laser beam is incident on two slits with a separation of 0.230 mm, and a screen is placed 4.75 m from the slits. If the bright
Mariulka [41]

Answer:

7.55\times 10^{-7} m

Explanation:

We are given that

d=0.23 mm=0.23\times 10^{-3} m

1mm=10^{-3} m

Screen is placed  from the slits at distance ,L=4.75 m

The bright interference fringes on the screen are separated  by 1.56 cm.

\Delta y=1.56 cm=1.56\times 10^{-2} m

1 m=100 cm

We have to find the wavelength of laser light.

We know that

\Delta y=\frac{\lambda L}{d}

Substitute the values

1.56\times 10^{-2}=\frac{\lambda\times 4.75}{0.23\times 10^{-3}}

\lambda=\frac{1.56\times 10^{-2}\times 0.23\times 10^{-3}}{4.75}

\lambda=7.55\times 10^{-7} m

4 0
3 years ago
Three identical lights are connected in series to a 12V battery. How does the brightness of each light compare?
kodGreya [7K]

Answer: They are identical brightness

Explanation:

If the lights are assumed to be resistance bulbs

Each light has the same current and will each drop one third of the supply voltage.  

8 0
3 years ago
Lester plays middle linebacker for dices football team. During one play, he made the following movements. First, he back-pedaled
NikAS [45]

Answer:

Explanation:

missing info .....

4 0
2 years ago
What are the visible and invisible forms of moisture in the air?
Usimov [2.4K]
The invisible form is water vapor that is microscopic and found all around us. When the air is really hot you can see this water vapor above ground as if it's moving. The visible form is either water droplets that fall down as rain, or it's the clouds that are basically a form of moisture that is iced up because it's very cold so it condensed and formed a cloud.
4 0
4 years ago
Read 2 more answers
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