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insens350 [35]
3 years ago
5

HELP PLEASE ASAP

Physics
2 answers:
Softa [21]3 years ago
7 0

Answer:

C) The mirror allows the light to be reflected so the objects behind the car can be seen.

Explanation:

Every driver needs to know or see what's behind them especially for security purposes and this is one of the purposes a rear view mirror serves.

The mirror also helps to reduce glare reaching a driver's eyes as the angle can be adjusted depending on the time of the day but most especially at night as other drivers behind would have their head lights on.

Adjusting the rear view mirror helps to reduce the glare so that the driver can see what's behind without being affected by excessive glare.

kherson [118]3 years ago
3 0
I am pretty sure the correct answer is C.
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A hammer has a mass of 1 kg. What is its weight (i) on Earth (ii) on the
solong [7]

Given mass= 1kg

Weight on earth = mg(gravity of earth) = 9.8N

weight on moon = mg(gravity of moon)= 1.62N

weight on outer space mg(gravity outer space = 0) = 0N

4 0
3 years ago
In a classical model of the singly-ionized helium atom, a single electron orbits the nucleus in a circular orbit of radius.
NikAS [45]

Yes, in a classical model of the singly-ionized helium atom, a single electron orbits the nucleus.

<h3>What is singly ionized helium?</h3>

Singly ionized helium is an atom that has lost one electrons from its outermost shell. We consider its remaining electron like a hydrogen electron. There is only one difference between a hydrogen atom and a singly ionized helium atom which is the number of protons in the nucleus so the nucleus charge on singly ionized helium is -1.

Learn more about helium here: brainly.com/question/26226232

5 0
3 years ago
The element lead (Pb) has a density 11.3 times that of water. Copper (Cu) has a density 7.9 times the density of water. A 5 kg m
77julia77 [94]

Answer:

The answer is B

Explanation:

Density of the element lead (Pb) is:

d_{Pb} =11,3kg/dm^3

Density of the element Copper (Cu) is:

d_{Cu} =7,9kg/dm^3

First we need o find the volume of both materials:

V_{Pb}=5/11,3=440cm^3

V_{Cu}=5/7,9=630cm^3

And the buoyant forces on elements are:

P_{Pb}=440*1*9,81/1000=4,32N

P_{Pb}=630*1*9,81/1000=6,18N

8 0
3 years ago
A rock falls off a 15 meter cliff. How fast is the rock traveling vertically two seconds later?
oksian1 [2.3K]
The acceleration of gravity on Earth is 9.8 m/s².  That means that
an object falling under the influence of gravity will move 9.8 m/s
faster than it was moving a second earlier.

Falling from rest, it will be moving 9.8 m/s after the first second,
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The height from which it fell doesn't matter.
8 0
3 years ago
this event is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the oc
MissTica

Answer: Tsunami.

Explanation :

Tsunami is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the ocean floor.

Tsunami is caused due to the displacement of a large volume of water like in an ocean. It consists of a series of waves. It destroys coastlines and coastal settlements. It is also known as a tidal wave.

So, the correct option is (b) Tsunami.

6 0
3 years ago
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