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insens350 [35]
2 years ago
5

Why should we invest more money in renewable energy resources

Physics
1 answer:
oksian1 [2.3K]2 years ago
3 0

Answer:

It is the smarter option.

Explanation:

Renewable energy is the cheapest source of new power generation for more than two-thirds of the world and has no fuel costs. It can reduce the economic burden of energy bills by eliminating fuel charges — especially when coupled with energy-efficiency upgrades in our homes and businesses.

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Please help
Allisa [31]

<u>We are given:</u>

Mass of the rocket = 10 kg

Weight of the Rocket = 100 N

Upward thrust applied by the rocket = 400 N

<u>Net upward force on the rocket:</u>

We are given that gravity pulls the rocket with a force of 100 N

Also, the rocket applied a force of 400N against gravity

Net upward force = Upward thrust - Force applied by gravity

Net upward force = 400 - 100

Net upward force = 300 N

<u>Upward Acceleration of the Rocket:</u>

From newton's second law:

F = ma

<em>replacing the variables</em>

300 = 10 * a

a = 30 m/s²

5 0
3 years ago
If an object has a mass of 14 kg, what is it’s weight
Alex_Xolod [135]

Answer:

Weight = 137.2 kg.m/s^{2}

Explanation:

Given

mass of an object, m = 14 kg

Weight (W) is given by the formula:

W = mg , where m is mass of the object and g is acceleration due to gravity and the value is 9.8 m/s^{2}

Hence W = 14 kg x 9.8 m/s^{2}

                = 137.2 kg.m/s^{2}

3 0
3 years ago
If displacement is negative,is velocity negative too?
evablogger [386]

Answer:

An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration).

Explanation:

3 0
3 years ago
Read 2 more answers
Which physical property is shown by scratching one material with another
lina2011 [118]
The hardness
nail or fingernail
3 0
3 years ago
Read 2 more answers
Identify three devices that use Convex lenses.
Yuliya22 [10]
Microscope lenses , glasses for people who can't see faraway as well and  microwave lenses which reflect electromagnetic radiation. Oh and curved mirrors.  
6 0
3 years ago
Read 2 more answers
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