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3 years ago

(3mrks) physics solar panel question

Physics

1 answer:

shtirl [24]3 years ago

6 0

Some benefits to solar power:
Isolated power is very abundant on earth.
Is very sustainable (5 billion years of good use)
Eco friendly excluding panel production.
Some disadvantages:
Very expensive to set up
Takes up a lot of space per person
Requires exotic materials to construct
Energy storage is difficult with solar cells compared to fossil fuels.

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Imagine that you move a substance from one container to another and it's volume changes, what state of matter is that substance?

Verizon [17]

This would be gas, due to it not essentially having a definite volume.

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3 years ago

The velocity of a projectile at launch has a horizontal component vh and a vertical component vv. When the projectile is at the

Usimov [2.4K]

Answer:

- horizontal component of the velocity: $v_h$ (because it is constant)

- vertical component of the velocity: 0

- vertical component of the acceleration: $-g=-9.8 m/s^2$ (downward)

Explanation:

The motion of a projectile consists of two independent motions:

- Along the horizontal direction, there are no forces acting on the projectile (if we neglect air resistance), therefore the horizontal acceleration is zero and the horizontal component of the velocity, vh, is constant

- Along the vertical direction, there is only one force acting on the projectile: the force of gravity, downward, which produces a constant downward acceleration of $g=9.8 m/s^2$ . As a consequence, the vertical component of the velocity changes according to

$v_v(t) = v_v-gt$

where vv is the initial vertical velocity and t the time. According to this equation, the vertical component of the velocity decreases first, then becomes zero at the point of maximum height, then becomes negative (= changes direction and points downward)

So, in summary, at the highest point of the trajectory we have:

- horizontal component of the velocity: $v_h$ (because it is constant)

- vertical component of the velocity: 0

- vertical component of the acceleration: $-g=-9.8 m/s^2$ (downward)

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3 years ago

What will happen to people involved in handling Gamma rays if they are not providedwith lead coated apron and equipment without

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Answer:

When gamma rays pass through the human body, they ionize the tissue. gamma ray ionization can affect healthy cells. When high levels of gamma rays bombard a body, a resulting dangerous ionization of tissue can cause skin cancer.

Explanation:

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2 years ago

Do electromagnetic waves require matter to travel?

VMariaS [17]

Answer:

No.

Explanation:

Electromagnetic waves do not require a medium of matter to move through, electromagnetic waves are used in things like your cell phone and telecommunications.

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2 years ago

Help Me!!! The number of protons determines what __________ a particular atom belongs to.

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C - element
Final answer :)

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3 years ago