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Ivenika [448]
3 years ago
7

Which type of engineer would most likely work with a renewable energy source?

Physics
2 answers:
julia-pushkina [17]3 years ago
8 0
I would say Solar Power Engineer.
babymother [125]3 years ago
8 0

Answer: C. Solar power engineer

Explanation:

A renewable source of energy is the energy that is harnessed from the renewable resources. The renewable resources are those resources which can be replenished once used. These resources are abundantly available in nature. These includes the sunlight, water, wind and forests.

Among the given options solar power engineer is the correct option. This is because of the fact that solar power is a renewable source of energy and it is the source of energy which cannot be depleted in nature. The radiant energy and heat from the sunlight can be used to generate electricity or to run the electrical devices.

The solar power engineer will construct the solar heating appliances, photovoltic cells, solar power plants, and other instruments or devices that works on the solar energy.

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A spring with spring constant 31 N/m is attached to the ceiling, and a 4.5-cm-diameter, 1.5 kg metal cylinder is attached to its
aalyn [17]

Answer:

0.315758099469 m

Explanation:

m = Mass of cylinder = 1.5 kg

\rho = Density of water = 1000 kg/m³

V = Volume = Ah

A = Area = \pi r^2

k = Spring constant = 31 N/m

x = Displacement

g = Acceleration due to gravity = 9.81 m/s²

Here the forces are conserved

Weight of cylinder = Buoyant force + Spring force

mg=\rho Vg+kx\\\Rightarrow mg=\rho Ahg+kx\\\Rightarrow 1.5\times 9.81=1000\times \pi(2.25\times 10^{-2})^2x\times 9.81+31x\\\Rightarrow 1.5\times 9.81=46.60213x\\\Rightarrow x=\dfrac{1.5\times 9.81}{46.60213}\\\Rightarrow x=0.315758099469\ m

The length of the submerged cylinder is 0.315758099469 m

4 0
4 years ago
A poker is a stiff, nonflammable rod used to push burning logs around in a fireplace. for safety and comfort of use, the poker s
Valentin [98]

Answer: The poker stick should have low thermal conductivity and high specific heat.

Explanation: For a poker stick that is non flammable, it should have some properties which will not let it heat up faster.

Two properties that satisfy the poker stick are:

  1. Specific heat
  2. Thermal conductivity

Specific heat is defined as the amount of heat require to raise the temperature of a mass M by 1 °C. More the specific heat, more amount of heat will be required to raise the temperature of a substance.

Thermal conductivity is defined as the ability of a substance to conduct heat. More thermal conductivity means that the substance will get hot faster as it will conduct more amount of heat.

So, for a substance that should not conduct more heat like the poker stick must have high specific heat and low thermal conductivity.

6 0
4 years ago
Two cyclists, who weigh the same and have identical bicycles, ride up the same mountain, both starting at the same time. Joe rid
RSB [31]

Answer:

Option-A

Explanation:

In the given question, two cyclists of equal weight are riding the same mountain with cycles of the same weight but Joe reaches the top before Bob.

This scenario can be explained in terms of power and if we ignore the force of wind resistance and friction. Power refers to the work done per unit time, therefore, P= W/t. Since Joe rides up straight earlier than Bob shows that Joe has exerted more power than Bob that is the amount of work done by the Joe is greater than Bob.

Thus, Option-A is the correct answer.

7 0
4 years ago
which of the four terms below includes the other three terms (1)community (2)ecosystem (3)population (4)individuala
Brut [27]
I think the answer is 3, population.
7 0
4 years ago
A hockey puck moves 22 meters northward, then 16 meters southward, and finally 4 meters northward.
xenn [34]

Answer:

Distance moved = 42 meters

Mag and Dir = 10 meters northward

Explanation:

Distance is total distance traveled which = 22+16+4 = 42 meters

Displacement is the amount of distance moved from the start point to the end point straight line so our equation for the magnitude is 22-16+4 = 10 meters. Then the direction is northward from the start point. This answer would also be a vector because it has a magnitude and direction.

8 0
3 years ago
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