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Answer:

To predict future climate, scientists use computer programs called climate models to understand how our planet is becoming different. Climate models work like a laboratory in a computer. They allow scientists to study how the unlike factors interact to influence a region's climate.

Now a new evaluation of global climate models used to project Earth's future global average surface temperatures over the past half-century answers that question: most of the models have been reasonably accurate.

Explanation:

I got a 100% on this assignment copy it and put it on your notes then go sentence by sentence copy but dont highlight any "." you will not be able to paste it into the box add the "." after you paste it, it one sentence.

ONE SENTENCE AT A TIME NO ". ' - or :" AT ALL

Answer:

The frequency of the phonograph record is 0.2 Hz

Explanation:

The frequency of an object moving in uniform circular motion is the number of completed cycles the object makes in a specified time period

The given parameters of the phonograph record are;

The radius of the record = 0.15 m

The number of times the phonograph record rotates, n = 18 times

The time it takes the phonograph record to rotate the 18 times, t = 90 seconds

The frequency of the phonograph record, f = (The number of times the phonograph record rotates) ÷ (The time it takes the phonograph record to rotate the 18 times)

∴ The frequency of the phonograph record, f = n/t = 18/(90 s) = 0.2 Hz

The frequency of the phonograph record = 0.2 Hz.

Answer:

i belive it should be C

Explanation:

Answer:

Explanation:

If unit vector towards east is represented by i in the present case ,

initial horizontal velocity of aircraft towards east is 70 m /s . The package dropped by the aircraft will also have same velocity while getting separated from the aircraft . Hence its velocity is represented by the vector ,

v = 70 i .

Its vertical velocity of package at that time will be zero so

v = 70 i + 0 j

= 70 i

Initial Velocity can be defined as the velocity at which the motion starts.

Initial Velocity for the package is [tex]70i[/tex].

Given that an aircraft flying at a steady velocity of 70 m/s eastwards at a height of 800 m.

Here we express the steady velocity as [tex]u\;\rm m/s[/tex]. Distance is expressed by [tex]d\;\rm meter[/tex]. Initial Velocity can be expressed as [tex]v\;\rm m/s[/tex].

Initial velocity can be calculated by the formula given below.

[tex]v\;=\;u\;+\;at[/tex]

In the above formula, [tex]a[/tex] is expressed the acceleration and [tex]t[/tex] is expressed the time of the motion.

For the initial velocity, time [tex]t\;=\;0[/tex] because motion starts in the vertical direction. Let us assume that unit vector can be expressed by [tex]i[/tex] and [tex]j[/tex].

Initial velocity formula in vector form is given below.

[tex]v\;=\;ui\;+\;atj[/tex]

By substituting all the values in the above formula, initial velocity is

[tex]v\;=\;ui\;+\;a\times0j\\v\;=\;ui\\v\;=\;70i[/tex]

So the initial velocity of the package is 70[tex]i[/tex].

For more details about the velocity, follow the link given below.

https://brainly.com/question/862972.

Answer:

Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.

Explanation:

Answer:

please find attached file

Explanation:

The magnitude of the vector is 7.27m .

The magnitude of a vector is the numerical value of the vector. It is represented by the length of the vector.

When a vector is resolved in two components then it is given by formula,

[tex]A = \sqrt{Ax^{2}+Ay^{2} }[/tex]

Here,

[tex]A_{x} = 6.15\\A_{y} = 3.88[/tex]

A = [tex]\sqrt{6.15^{2}+3.88^{2}[/tex]

A = 7.27m

Hence magnitude of the vector is 7.27m .

To know more about vector here

https://brainly.com/question/13322477

#SPJ2

Answer:

Wave height is the vertical distance between the crest (peak) and the trough of a wave. Some other definitions: Still-Water Line is the level of the lake surface if it were perfectly calm and flat. Crest is the highest point on the wave above the still-water line.

Explanation:

Answer:

f=m.a 1000*9.8=9800newton

Answer:

D. Exothermic, because energy is being absorbed from the surroundings

Explanation:

This is true about the Exothemic reaction due to the fact that, the reaction occurs outside the body. During this reaction, the energy being absorbed from the surrounding environment will hit the body surface thereby creating the coldness due to the heat given out from the body  being minimal.

Answer:

Endothermic, because energy is being absorbed from the surroundings.

Explanation:

Answer:

Its either 24 or 27 I'm confident its 24 my explanation is that from estimate it's near the 20s

Answer:

The AMOUNT of oxygen and carbon atoms released by photosynthesis are EXACTLY EQUAL to the atoms of these material contained in carbon-dioxide converted. In this way photosynthesis has conserved the mass or material, and in this way followed the law of conservation of mass.

Answer:

Applied Force.

Gravitational Force.

Normal Force.

Frictional Force.

Air Resistance Force.

Tension Force.

Spring Force.

Explanation:

:)

Answer: A

Explanation:

The acceleration of gravity is always 9.8 m/s^2 downwards, even if the velocity is 0 m/s.

Answer:

the pressure exerted on the turf when the player lands on his knee is 240,000 N/m².

Explanation:

Given;

combined weight of the players, F = 2400 N

measurement of the player's knee = 0.1 m by 0.1 m

The area of the player's knee is calculated as;

A = 0.1 m x 0.1 m = 0.01 m²

The pressure exerted on the turf when the player lands on his knee is calculated as;

P = F / A

P = (2400 N) / (0.01 m²)

P = 240,000 N/m²

Therefore, the pressure exerted on the turf when the player lands on his knee is 240,000 N/m².

Answer:

answer is 700 joules

Explanation:

work is equal to force into displacement

W=12.5*56

700 joules

Answer:

78j

Explanation:

78.125J to be exact

Answer:

The alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide instead of the acidic ammonium chloride or zinc chloride electrolyte of the zinc-carbon batteries. An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved electrolyte separates into cations and anions, which disperse uniformly through the solvent. Electrically, such a solution is neutral.Advantages. One of the advantages of alkaline batteries over other primary batteries and rechargeable batteries is that it has higher energy density. It has longer shelf life than batteries with chloride-type electrolyte. It could last to up to seven years unused, losing about five percent of its energy every year.

Explanation:

Answer:

The force felt is the same

Explanation:

Answer:

Force is equal to Mass Multiplied by Acceleration

F = M x A

Answer:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

Answer:

I think its A

Explanation:

Answer:

The answer is C.

Explanation:

Let's take a glass of water as an example. Now, shine a flashlight on it. See it bend the light into a rainbow? That is a example of refraction. When the light enters the water, the water actually slows down and changes its direction, causing the light to come out the other side in a different way. Since water is very dense, it can bend the water and make it different.

Answer:

the bonds that are formed

Explanation:

Energy is absorbed in order to break bonds.  Energy is released when new bonds are formed. Bond-making is a process of exothermic. Whether the reaction is endothermic or exothermic refers to the difference between the energy needed to break bonds and the energy released when new bonds are formed.

Answer:

A car

Explanation:

Answer:

1842.

Explanation: Blueprints were invented a generation before the Civil War by John Herschel, a chemist, astronomer, and photographer, in 1842.

Answer: c because our solar system is called the milky way

Explanation: