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statuscvo [17]
3 years ago
10

Help plz I’ll mark brainliest

Physics
2 answers:
Scorpion4ik [409]3 years ago
6 0

Answer:

concave

Explanation:

the middle of the concave lens is narrow and the edges are flattened.

marin [14]3 years ago
3 0
I think it’s concave
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All matter in the Universe consists of many substances called elements. <br><br> true or faluse
Mrrafil [7]
The answer to this statement is true!
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Three basic electrical effects occur when an electric current flows in a conductor: A magnetic field is set up around the conduc
Alex787 [66]

Answer:

A drop in voltage occurs  

Explanation:

When electric current flows through a conduct, there are three basic electrical effects that occur to the conductor;

1. A magnetic field is set up around the conductor,

      A magnetic field is formed around a conductor when current flows through it which makes it acts like a magnet. Application is used in electric bells.

2. Heat is generated, and

     The heating effect of current is due to the conversion of some of the electrical energy that passes through the conductor, into heat energy. Application of heat effect include electric iron, microwave oven, electric bulb, hair straightener etc.

                          H = I²Rt

3. A drop in voltage occurs  

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7 0
3 years ago
8x = -6. What does x equal?
allsm [11]

Answer:

x= -3/4

Explanation:

4 0
3 years ago
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A 10 kg cart is rolling across a parking lot with a velocity of .5 m/s. What is its momentum?
-Dominant- [34]

Hello!

\large\boxed{p = 5  \text{ } kgm/s}

Use the equation for momentum:

p = mv

Plug in the given mass and velocity into the equation:

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4 0
3 years ago
Two 30 uC charges lie on the x-axis, one at the origin and the other at 9 m. A third point is located at 27 m. What is the poten
alukav5142 [94]

Answer:

25000 V

Explanation:

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V = Kq/r

Potential at B due to the charge placed at origin O

V1 = K q / OB

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Potential at B due to the charge placed at A

V2 = K q / AB

V_{2}= \frac{9 \times 10^{9} \times 30 \times 10^{-6}}{18}

V2 = 15000 V

Total potential at B

V = V1 + V2 = 10000 + 15000 = 25000 V

4 0
3 years ago
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