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2 years ago

When light arrives and leaves a reflecting surface the angle with the line perpendicular to the surface is what?

Mathematics

2 answers:

sashaice [31]2 years ago

7 0

Answer:

the angle of reflection is the angle between the reflected wave and the "normal" (the perpendicular line to the reflecting surface).

Step-by-step explanation:

scoundrel [369]2 years ago

7 0

Answer:

The angle which the light leaves or bounces off a surface is angle of reflection.

Step-by-step explanation:

has two types of light rays. The incoming ray and the outgoing, or reflected, ray. The angle between the incident ray and an imaginary perpendicular line drawn to the surface of the mirror is called the angle of incidence.

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2 years ago

A carpenter bought 750 nails. Each nail has a mass of 5.2×10−3 kilogram. What is the total mass, in kilograms, of the nails the

lawyer [7]

The total mass, in kilograms, of the nails the carpenter bought is 3.9 kilogram

<h3>Solution:</h3>

Given that carpenter bought 750 nails

Each nail has a mass of $5.2 \times 10^{-3}$ kilogram

To find: total mass, in kilograms of the nails bought

The total mass of the nails bought can be found out by multiplying number of nails bought by mass of each nail

Number of nails bought = 750

Mass of each nail = $5.2 \times 10^{-3}$ kilogram

total mass of the nails bought = number of nails bought x mass of each nail

$\text {total mass of the nails bought }=750 \times 5.2 \times 10^{-3}$

$\text {total mass of the nails bought }=3900 \times 10^{-3}=\frac{3900}{1000}=3.9$

Thus the total mass of nails bought is 3.9 kilogram

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2 years ago

A parachutist's speed during a free fall reaches 198 feet per second. What is this speed in meters per second? At this speed, ho

Archy [21]

First covert the feet to meters.

1 meter = 3.3 feet.

Divide the total number of feet by 3.3 to get total number of meters:

198 / 3.3 = 60 meters per second.

Multiply meters per second by 15 seconds:

60 x 15 = 900 meters in 15 seconds.

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2 years ago

How to construct a triangle given area 36cm and sides 6cm and 8cm

Illusion [34]

The bottom would be 36cm and the sides 6 and 8

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2 years ago

If c(x)=4x-2 and d(x)= x^2+5x what is (c*d)(x)

Afina-wow [57]

$c(x)=4x-2\\d(x)=x^2+5x\\\\(c\times d)(x)\\=(4x-2)(x^2+5x)(x)\\=4x^3+20x^2-2x^2-10x(x)\\=4x^3+18x^2-10(x)$

If I understood correctly

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2 years ago

Read 2 more answers