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Ahat [919]
3 years ago
15

Cells that help protect the body from disease are the

Physics
2 answers:
mash [69]3 years ago
4 0
The answer is either A or D
Bumek [7]3 years ago
3 0
The answer to this question is A
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What is the answer I’m stuck on this one it’s a screenshot for the question
Dmitry_Shevchenko [17]

Answer:

deceleration is the opposite of acceleration

Explanation:

We know that acceleration is the increase of speed with respect to time. So deceleration must be represented on the graph as a decrease in speed over time.a

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Thermal energy transfers throughout the water in the beaker. Describe and explain how this happens?
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A 100-g aluminum calorimeter contains 500 g of water at a temperature of 20ºC. Then a 140-g piece of metal, initially at 344ºC,
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3 years ago
Highest density if electrostatic charge in a metal is found in​
arsen [322]
There’s no picture so how r we supposed to answer it
8 0
3 years ago
A. A light wave moves through glass (n=1.5) at an angle of 25°. What angle will it have when it moves from the glass into air (n
torisob [31]

PART A)

By Snell's law we know that

n_1sin i = n_2 sin r

here we know that

n_1 = 1.5

i = 25 degree

n_2 = 1

now from above equation we have

1.5 sin25 = 1 sin r

r = 39.3 degree

so it will refract by angle 39.3 degree

PART B)

Here as we can see that image formed on the other side of lens

So it is a real and inverted image

Also we can see  that size of image is lesser than the size of object here

Here we can use concave mirror to form same type of real and inverted image

PART C)

As per the mirror formula we know that

\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}

\frac{1}{d_i} + \frac{1}{60} = \frac{1}{20}

d_i = 30 cm

so image will form at 30 cm from mirror

it is virtual image and smaller in size

3 0
4 years ago
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