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iVinArrow [24]
2 years ago
5

How is an image formed by a plane mirror

Physics
1 answer:
masha68 [24]2 years ago
8 0
Is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.
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The image shows devices that convert wind energy into electrical energy. What is one advantage of using this type of device in p
choli [55]

Answer:

C

Explanation:

it uses a renewable source

8 0
2 years ago
Find the mass of a sample that has a dersity of 2 g/mL and a volume of 10 mL
In-s [12.5K]

Answer:

mass = volume x density.

Explanation:

2 x 10 = 20g

4 0
2 years ago
Archimedes supposedly was asked to determine whether a crown made for the king consisted of puregold. According to legend, he so
DENIUS [597]

Answer:

the crown was not made of pure gold

Explanation:

Mass of gold = weight in air/ g = 7.84N/10ms-2= 0.784 Kg or 0.8Kg

From Archimedes principle:

Upthrust= weight in air- weight in a fluid

Upthrust= volume × density × g

Note density of water = 1000kgm-3

7.84-6.84= V × 1000kgm-3×10ms-2

V= 1/10000= 1×10-4 m^3

Density = mass/ volume= 0.8/1×10-4

= 8×10^3 Kgm-3

But we know the density of gold to be 19.3 ×10^3 kgm-3

Hence the crown was not made of pure gold

4 0
3 years ago
A car travelling at 15 m/s comes to rest in a distance of 14 m when the brakes are applied.
stira [4]

Answer:

-8.04 m/s2

Explanation:

To find the answer to this, you have to use the 4th kinematic equation:

v^{2} = v^{2}_{0}  + 2ax

You plug into the equation to get:

0 = 15^{2} + 2a(14)

solve for a to get

-8.04 m/s2

3 0
2 years ago
Football helmets are made with padding that helps reduce head injuries when a player collides with an object. Which bestexplains
Vlad1618 [11]

football hemets have pads that are filled with air and thick foam so when they are hit the foam asorbs the hit and the air keeps the hard outer shell of the helmet from hiting the players head

3 0
3 years ago
Read 2 more answers
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