Can someone please answer this, ill give you brainliest Would be very appreciated.

Answer:

Explanation:

Answer/Solution

I hope it help.

Aluminium is far powerful and reactive than hydrogen so it will displace H_2 easily.

The reaction becomes

Balanced reaction

(a)The required speed for take off will be 24.49 m/sec.

(b)The minimum length must the runway have 193 m.

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while v for the final speed. its SI unit is m/sec.

(a)The required speed for take off will be 24.49 m/sec.

From the Newtons third equation of motion;

[tex]\rm v^2 = u^2+2as \\\\ v=0+2 \times 2 \times 150 \\\\ v=\sqrt{600}\\\\ v=24.49 \ m/sec[/tex]

Hence, the required speed for take off will be 24.49 m/sec.

(b)The minimum length must the runway have 193 m.

From the Newtons third equation of motion;

[tex]\rm v^2 = u^2+2as \\\\ (27.78)^2 = 0+2\times 2 s \\\\\ s=192.93 \ m[/tex]

Hence, the minimum length must the runway have 193 m.

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Answer:

- Allows you to talk and to smell.

- Warms air to match your body temperature and moisturizes it to the humidity level your body needs.

- Delivers oxygen to the cells in your body.

- Removes waste gases, including carbon dioxide, from the body when you exhale.

- Protects your airways from harmful substances and irritants

Answer:

B

Explanation:

i hope this is correct.

[tex]\\ \rm\Rrightarrow C=\dfrac{\epsilon_oA}{d}[/tex]

[tex]\\ \rm\Rrightarrow C=\dfrac{0.2(0.001)}{0.04}[/tex]

[tex]\\ \rm\Rrightarrow C=\dfrac{0.0002}{0.04}[/tex]

[tex]\\ \rm\Rrightarrow C=0.005F[/tex]

[tex]\\ \rm\Rrightarrow C=5mF[/tex]

Explanation:

Given data :

Given data :Plate area = 0.2m^2

Given data :Plate area = 0.2m^2Distance between plates=0.04m

Given data :Plate area = 0.2m^2Distance between plates=0.04mdielectric constant = 0.001 C/vm

Given data :Plate area = 0.2m^2Distance between plates=0.04mdielectric constant = 0.001 C/vmRTF=Capacitance.

Given data :Plate area = 0.2m^2Distance between plates=0.04mdielectric constant = 0.001 C/vmRTF=Capacitance. SolutionFirst formula for capacitance .

Answer:

A. adjust the seat so you can reach all controls

------------------------------------------------------

This is so you can reach the gas petal, break petal, steering wheel, (and other things) easier so you won't have to lean forward and it makes it easier for when you're driving. Especially if you need to quickly press your breaks, you'll be able to do this a lot faster if you're closer to them than if you had to reach in order to do so.

I hope this helped, im not the best at explaining things lol

The minimum amount of water needed for bathing assuming the water begins at room temperature is 16.58kg.

When two bodies at different temperature come into contact, they share the heat through conduction. After some time, temperature of both becomes equal. This condition is said to be a body in thermal equilibrium with other.

Heat gained by the water = heat lost by the ill person

m x Cw x ΔT = M x Cp x Δt

where, mass of person M = 80kg, Cp =specific heat of body =3470, specific heat of water Cw= 4186, then mass of water m will be

m x 4186 x (37-25) =- 80 x 3470 x (37-40)

m = 16.58kg

Thus, the mass of water needed is 16.58kg.

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Explanation:

1)

A) Bb BB

B) 50%

2)

A) 50%

B) b. b

B. Bb. Bb

b. bb. bb

strong winds that come together from different directions

Answer:

6 v

Explanation:

V = IR

   = 3 A * 2 ohm = 6 v

[tex] \bold{\underline{\underline{\underbrace{Answer}}}} [/tex]

5 images

Explanation:

⠀

⠀

What is reflection of light?

The reflection of light is the phenomenon in which the rays of light falls on the object and change it's path.

⠀

How image is formed in plane mirror?

When you look at the mirror the image is formed behind the mirror and it is virtual. The light from the object which reaches the mirror gets reflected back.

⠀

⠀

The formula to find the no. of images between the 2 plane mirror at any angle θ.

[tex] \sf No. \: of \: images = \frac{360 \degree}{ \theta} - 1[/tex]

According to the question the plane mirror is inclined at 60° angle.

Substituting the required values.

[tex] \sf \large \frac{ \cancel{360} \small \: \: 6}{ \cancel{60}} - 1 \\ \\ \sf \large 6 - 1 \\ \\ \boxed{ \frak{ \implies 5} }[/tex]

The 2 plane mirror will form 5 images inclined at 60° angle.

An electron absorbs energy and emits electromagnetic radiation based on its transition.

This is defined as a sub-atomic particle which has a negative charge. It's involved in a chemical reaction which results in the formation of new substances.

Classical physics predicted that at a high enough temperature, ultraviolet light would be emitted. instead white light was emitted resulting in the ultraviolet radiation.

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Answer:

300

Explanation:

15 * 20 = 30

15 *

20 =

——

300

Let k be the spring constant.

• When the spring is compressed by 11 cm = 0.11 m, it stores

1/2 k (0.11 m)²

of potential energy.

• When it's compressed by 66 cm = 0.66 m, it stores

1/2 k (0.66 m)²

of potential energy.

Then the ratio of these potential energies is

(1/2 k (0.66 m)²) / (1/2 k (0.11 m)²) = 36

which is to say, the spring stores 36 times more energy when it's compressed by 66 cm compared to 11 cm.

Matching each space mission with the correct milestone

A space mission is a mission that takes an individual, animal, a thing or material out of earth using a spaceship. This mission is always carried out with a desire to find out more about the galaxy earth is a member of and to learn about other planets.

In conclusion, the list above is the accurate Matching of each space mission with the correct milestone.

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Answer:

See attachment below, Hope it helps!

The value of x in the given right triangle in a semicircle is determined as 21.

The triangle in a semicircle is always a right angle triangle.

From the figure shown, we can say that the triangle  G J K is right triangle and m<K = 90degrees.

Given that m<K = 4x + 6, we will can use the following equation to find the value of x as shown:

4x + 6 = 90

4x = 90 - 6

4x = 84

x = 21

Thus, the value of x in the given right triangle in a semicircle is determined as 21.

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The generator power will be 59 kW. Power drop is the main factor for finding the generated power.

The maximum power input allowed to pass through a piece of equipment is known as the equipment's power rating.

Power drop = 5%

The relation of the frequency change with the power drop is;

[tex]\rm \frac{df}{dp} =5\%\\\\ \frac{f_{rated-f_1}}{P_{rated}-P_1}=0.05\\\\ \frac{f_{rated-60}}{100-61}=0.05\\\\ f_{rated}=61.95[/tex]

For the grid frequency, 59.9 Hz

[tex]\rm \frac{f_{rated-f_2}}{P_{rated}-P_2}=0.05[/tex]

[tex]\rm \frac{61.95-f_2}}{100-P_2} =0.05\\\\ 100-P_2 =20(61.95-59.9)\\\\P_2=100-41 \\\\ P_2=59 \ kW[/tex]

Hence, the generator power will be 59 kW.

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Answer: neutrinos

Explanation:

Sustainable buildings are generally less expensive over the lifetime of the building, due to lower energy costs in production of the materials and lower energy bills. Option A is correct.

Sustainable buildings refer to both a structure and the implementation of environmentally responsible and resource-efficient methods.

Sustainable buildings are generally less expensive over the lifetime of the building, due to lower energy costs in production of the materials and lower energy bills,

Hence,option A is correct.

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Answer:

See below ~

Explanation:

A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This cause the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.

A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This causes the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.

The options are followed by

Answer:

I would hit it as hard as you can with the club.

Explanation:

well one thing that I like to do is hit the golf ball as hard as possible with the club.

This is because for me, when I do that, I can normally get more momentum which means I also get a farther hit.

Answer:

inverse-square law.

Explanation:

Since the area increases as the square of the distance, the brightness of the light must decrease as the inverse square of the distance.

hope this helped you!