The largest number of neurons within the brain and spinal cord are responsible for the central nervous system’s complex internal communication and intervene between jnputs and output these are the

Explanation:

1 nano-meter radiations are very difficult to observe from the ground based telescope because most of this range of radiation is absorbed through ozone layer. A very small amount of this range escape out of the ozone layer. This remaining few radiations are very difficult to track from the ground base telescope.

1 millimeter range of radiation comprises of infrared. It has range from 710 nano-meter to 1 millimeter. Infrared radiation can be easily absorbed from water and carbon di oxide molecules present in the atmosphere. So, it is absorbed by water and carbon di oxide molecules in the atmosphere. Thus, it is difficult to observe from the ground based telescope.

100 meter radiations are are radio-waves. The charged particle present in the uppermost layer of atmosphere absorbs these radio waves. So, these waves are absorbed by charged particle in the upper atmosphere. Thus, it is difficult to observe from the ground based telescope.  

Heat required to raise the temperature of a given system is

[tex]Q = ms\Delta T[/tex]

here we know that

m = mass

s = specific heat capacity

[tex]\Delta T[/tex] = change in temperature

now as we know that

mass of wood = 5 kg

mass of aluminium pan = 2 kg

change in temperature = 45 - 20 = 25 degree C

specific heat capacity of wood = 1700 J/kg C

specific heat capacity of aluminium = 900 J/kg C

now here we will find the total heat to raise the temperature of both

[tex]Q = m_1s_1\Delta T_1 + m_2s_2\Delta T_2[/tex]

[tex]Q = 5 * 1700 * 25 + 2 * 900 * 25[/tex]

[tex]Q = 212500 + 45000[/tex]

[tex]Q = 257500 J[/tex]

So heat required to raise the temperature of the system is 257500 J

That's called "Geothermal" energy.

"Geo ..." always means something about the Earth.

"Thermal ..." always means something about heat.

Geothermal energy is used in places where there's a lot of heat that's not too far under the ground, like in places above ancient volcanos.  

The system is built with pipes running deep down into the ground and then back up again, and then running water is pumped through the pipes.  The water picks up heat from down under and brings the heat up to the surface, where it can be used to heat homes and buildings, and turn steam turbines to generate electricity.

Geothermal is the MAIN source of energy in Iceland.

The type of power plant that uses heat from underground to make electricity is called a geothermal power plant.

Geothermal power plants harness the heat stored in the Earth's crust to generate electricity. This heat energy is typically obtained from geothermal reservoirs, which are areas where hot water or steam is trapped beneath the Earth's surface. The heat is extracted through wells and used to drive turbines connected to generators, converting the thermal energy into electrical energy.

Geothermal power plants are a renewable and sustainable energy source as they rely on the natural heat of the Earth.

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Here when car in front of us applied brakes then it is slowing down due to frictional force on it

So here we can say that friction force on the car front of our car is given as

[tex]F_f = \mu m g[/tex]

So the acceleration of car due to friction is given as

[tex]F_{net} = - \mu mg[/tex]

[tex]a = \frac{F_{net}}{m}[/tex]

[tex]a = -\mu g[/tex]

now it is given that

[tex]\mu = 0.868[/tex]

[tex]g = 9.81 m/s^2[/tex]

so here we have

[tex]a = -0.868 * 9.81[/tex]

[tex]a = -8.52 m/s^2[/tex]

so the car will accelerate due to brakes by a = - 8.52 m/s^2

The acceleration of the car when it was front of him is [tex]\\\rm \bold { -8.52 m/s^2}[/tex].

Given here,

[tex]\rm \bold{ \mu = 0.868}\\\rm \bold{ g =9.81 m/s^2}[/tex]

The friction force applied on car is

[tex]\rm \bold { F_f= \mu mg}\\[/tex]

[tex]\rm \bold { F_n_e_t= - \mu mg}\\[/tex]

The acceleration due to friction

[tex]\rm \bold { a = \frac{F_n_e_t}{m} }\\\\\rm \bold { a = -\mu g}[/tex]

[tex]\rm \bold { a = -0.868\times 9.81}\\\rm \bold { a = -8.52 m/s^2}[/tex]

Hence, we can conclude that the acceleration of the car when it was front of him is [tex]\\\rm \bold { -8.52 m/s^2}[/tex].

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As

Mosquito flaps its wings in one sec= 600 times.

Time Period = Time required to flap wings one time

So Time period = 1/ 600

Time period =0.00167 sec

Time period = 1.7×10³ sec