1. What are the properties of a compound? Give an example.

Answer:

time and cost

Explanation:they have to pay for the pizza and take time to eat it

Answer:

B: Family and Friends

Explanation:

According to the class I had on this a few years ago, I can confirm that this was the answer.

My answer would be this because you are socializing with friends (according to the question) and you would just select it automatically due to background knowledge.

Hope I helped! ☺

Answer:

Apply Newton's second law in the moving direction.

Explanation:

[tex]\begin{aligned}F &= ma\\5N-2N &= 25kg\times a\\a & = \frac{3N}{25kg}\\&= 0.12ms^{-2}\end{aligned}[/tex]

Friction force applies in the opposite direction of motion; as a restriction.

I got y = 0.94427191  and y = -16.944272. Not sure if right tho.

I did  [tex]{k q_1 \over y^2} &= {k q_2 \over (2-y)^2}[/tex], put the known in and solved it.

Answer:

47.43 m/s

Explanation:

Given that,

Final speed of a plane, v = 0

Distance, d = 180 m

Acceleration of the plane, a = -6.25 m/s² (deceleration )

We need to find the plane's velocity. Let it was u. So, using the third equation of kinematics as :

[tex]v^2-u^2=2ad\\\\u^2=0^2-2\times (-6.25)\times 180\\\\u=\sqrt{2250} \\\\u=15\sqrt{10}\ m/s\\ \\\text{or}\\\\u=47.43\ m/s[/tex]

So, the plane's velocity when it first touched the landing strip is 47.43 m/s.

Answer:

yes it is possible, you have to lay down flat on your back

brainliest pweaseee

Answer:

Yes (and no)

Explanation:

Hey! This according to my theory is possible, the g-force of an object or "elevator" (in your explanation) is accelerating as it's gravitational pull is getting stronger. So it would but wouldn't be possible in a small elevator, because you-know it's an elevator (and of course you would bump your head, ouch!) ; p !

But if you had free or spare space to use, then you can jump upwards at the last second to cancel out the gravitational pull as if you actually (or originally) jumped from this height. But the gravitational pull may be too strong for those of humans, if the person acquiring and accelerating in G-Force doesn't have good leg muscle then he may be pulled along with the object by the gravitation.

I hope this helped! Pls Brainliest my answer! It would mean and help a lot! ; )

Answer:

7

Explanation:

Explanation:

Answer:

diabetes

Explanation:

hope it helps

Answer:diabetes

Explanation:

common sense

Answer:

weight

Explanation:

the reason is because I am invteble

Answer:

235.2 m

Explanation:

Given:

v₀ = 0 m/s

v = 24 m/s

t = 19.6 s

Find: Δx

Δx = ½ (v + v₀) t

Δx = ½ (24 m/s + 0 m/s) (19.6 s)

Δx = 235.2 m

Initial speed = zero

Final speed = 24 m/s

Time interval = 19.6 s

We have to find distance traveled by during the given interval of time[tex].[/tex]

★ Acceleration of car :

➠ a = (v - u)/∆t

➠ a = (24 - 0)/19.6

➠ a = 1.22 m/s²

★ Distance traveled by car :

➤ v² - u² = 2as

➤ 24² - 0² = 2(1.22)s

➤ 576 = 2.44s

➤ s = 576/2.44

➤ s = 236 m

Answer:

$50

Explanation:

:) =)

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

The doctors could see if her cells are getting the molecules they need from food and air. Doing so allows the doctors a general overview of how well her body's biological systems are performing since the basic necessities of the human system are food and oxygen. Therefore if the body is receiving both food and oxygen properly and distributing it properly and efficiently as well without any problems then the most likely outcome is that she is healthy enough to perform her tasks in the submarine under more pressure.

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

Answer:

mecanichal energy

Explanation:

................

Answer:

In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

Explanation:

Sorry if it's wrong!!!!!!

Answer:

VVV

Explanation:

A solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

Answer:

c.) magnetosphere

Explanation:

I think is C

Accelerator mass spectrometers are used in modern isotope counting.

So, option B. is correct.

Isotopes are two or even more kinds of atoms with the same atomic masses but differing nucleon numbers leading to varying numbers of neutrons within their nuclei.

Accelerator mass spectrometry would be a type of mass spectrometry in which ions are accelerated to extremely high kinetic energy before being analyzed for mass.

Accelerator mass spectrometers are used in modern isotope counting.

Option B. is correct.

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filling it up

Explanation:

Answer:

Yes

Explanation:

An atom is made up of itself. Yes this is crazy but true. So far we have found the universe is everlasting, and the universe is part of itself meaning there nothing outside, except heaven and hell

Answer:

a = 5

Explanation:

F = M × A

15 = 3 × a

a = 15 / 3

a = 5

This is only if the toy can is pushing the book or smth coz the question looks incomplete...?

Answer:

5 m/s^2

Explanation:

Realize that Newton's Second Law explains that the net force is equal to the mass mulitplied by the acceleration, or in simple terms, F=ma. In the problem, the force is 15 newtons, and the mass is 3 kg. Substiting and dividing, we get 5 m/s^2 (5 meters per second squared).

Yellow has the lowest density. I took the test and got this question correct. :)

The object represented by the yellow graph has the lowest density.

It is defined as the mass per unit volume of the body. Mathematically -

ρ = M/V

Given is a graph showing the variation of the mass with volume.

All of the given graphs are straight lines. The slope of the line determines the proportionality constant or density of the four objects whose graphs are plotted. The graph with the maximum slope will have the highest density and with the minimum slope has lowest density. It can be seen that the yellow graph has the smallest slope (slope is the angle any straight line makes with x - axis). So it will have the lowest density.

Therefore, the object represented by the yellow graph has the lowest density.

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Answer:

oxygen

Explanation:

ok buddy

Mechanical energy = Kinetic Energy + Potential Energy

Kinetic energy = 1/2 * m * v² = 1/2 * 3.5 * (10)²

=> Kinetic energy = 175 J

Potential energy = m * g * h = 3.5 * 10 * 3 = 105 J

Hence,

Mechanical energy = Kinetic Energy + Potential Energy

= 175 J + 105 J

= 280 J

Taking into account the potencial, kinetic and mechanical energy, the total mechanical energy is 278.005 J.

Potential energy refers to the position that a mass occupies in space and its magnitude is directly proportional to the height at which the object is, with respect to a reference position, to the mass of the object and to gravity:

Ep = m×g×h

On the other hand, kinetic energy manifests itself when bodies move and is associated with speed. The kinetic energy of a body depends on its mass and the square of its speed:

Ec = [tex]\frac{1}{2}[/tex]×m×v²

The mechanical energy of a body is the capacity it has to carry out mechanical work, that is, to produce a movement due to causes of mechanical origin, such as its position or its speed.

The mechanical energy of a body is the sum of its kinetic energy and its potential energy:

Em = Ep + Ec

Where

Then:

Em= m×g×h + [tex]\frac{1}{2}[/tex]×m×v²

The Principle of conservation of mechanical energy indicates that, in the absence of friction and without the intervention of any external work, the sum of the kinetic and potential energies remains constant, that is, the mechanical energy of a body remains constant throughout the movement. if no friction force acts.

In this case, you know that:

Complying with the Principle of Conservation of Mechanical Energy and replacing in the expression of mechanical energy:

Em= 3.5 kg×9.81 [tex]\frac{m}{s^{2} }[/tex]×3 m + [tex]\frac{1}{2}[/tex]×3.5 kg×(10 [tex]\frac{m}{s}[/tex])²

Solving:

Em=103.005 J + 175 J

Em= 278.005 J

Finally, the total mechanical energy is 278.005 J.

Learn more:

Answer:

wouldn't it be 17km?

Explanation:

Since its 10km and 7km it would make 17km in total. sorry if this didnt help i suck at this stuff :/

Answer:

So if an object of mass m is raised through a height h, the work done on the object is equal to mgh, and so this amount of energy is transferred to the object. (Notice that this equation is identical to the one describing an object falling under gravity, Equation

v = ir

where v is voltage and i is current

r = v/i

r = 4/0.5

r = 8 ohms

The current through a wire is 0.5 a when the potential difference across is 4.0.v, the resistance of the wire is 8.0 ohms.

Ohm's law, which states that the resistance (R) of a wire is equal to the ratio of the potential difference (V) across the wire to the current (I) flowing through it, can be used to calculate the resistance of a wire.

It has the following mathematical expression:

R = V ÷ I

Here, it is given that:

Potential difference (V) = 4.0 V

Current (I) = 0.5 A

Now we can substitute the values into the formula:

R = 4.0 V ÷ 0.5 A

Calculating the division:

R = 8.0 ohms

Therefore, the resistance of the wire is 8.0 ohms.

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The forces, act upon the block which  is at rest on an inclined plane, are:

Two surfaces that come into contact and glide against one another produce frictional force.

When  the block is on an inclined plane, its weight is acting downwards for force of gravity, the surface on the plane acts an upward force named normal force. But to become it rest, a resistive frictional force acts on it. Hence, the  forces, acts upon the block, are:

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Explanation:

Momentum is mass times velocity.

p = mv

720 kg m/s = m (5 m/s)

m = 144 kg