Rhonda watched a video taken by a camera that was lifted into the upper atmosphere by a weather balloon. She saw the balloon pop when it reached a certain height. Afterward, Rhonda wondered what effect the air pressure at high altitudes has on the volume of gas in balloons. What scientific practice is Rhonda performing? asking a question providing explanations communicating results performing an investigation

Answer:

A remote-controlled, pilot-operated _Relief__ valve is type of pilot-operated relief valve that uses one or more external pilot valves to set the pressure at which the relief valve will open.

Answer:

V = 6 m/s

Explanation:

Given that,

Initial speed of an object is 20 m/s

Final speed of an object is 10 m/s

Time, t = 5 s

We need to find the average speed of the object during these 5 seconds. Let it is equal to V. Here, time is same. The average speed is given by :

[tex]V=\dfrac{x+y}{2}\\\\\text{Putting values}\\\\V=\dfrac{20+10}{5}\\\\V=6\ m/s[/tex]

So, the average speed of the object is 6 m/s.

Answer:

2500 micrometers.

Explanation:

When ever it comes to converting a value into micrometers, you just multiply the length value by 1000.

Answer: 114.543 i think

Answer:

example 5foot 5in

a)65

b)165.1

c) 1.83

Explanation:

a) multiply the amount of feet by 12. thats 60. then add the extra 5 inches. 65 inches in total.

b) multiply your previous answer by 2.54. (there are 2.54 centimeters for every inch) the answer is 165.1

c) a yard is three feet. divide 5foot 5 by 3.

Answer:

Explanation:

The question is incomplete. Here is the complete question.

You move at 3 m/s north, then at 5 m/s directly west. Find your displacement.

The displacement is the distance moved in a specified direction. If you first move 3m/s due to north, this means you moved in the positive y direction hence we can say that y = 3m/s. Then if you move 5m/s directly due west this means you moved in the negative x direction hence we can say that x = -5m/s. The displacement will be gotten using the pythagoras theorem as shown.

D² = x²+y²

D² = (-5)²+3²

D² = 25+9

D = √34 m/s

Hence your displacement is √34 m/s and the total distance covered is 3m/s + 5m/s = 8m/s

Explanation:

The attached image shows the path followed by an airplane that is trying to land. From the figure, it can be seen that initially, its position was 200 m due east, then 150 m due south, 200 m due west, 250 m due south.

(a) The total path covered during its entire journey is called distance.

D = 200 m+150 m+200 m+250 m

D = 800 m

(b) The shortest path covered by an object is called displacement of an object. The shortest path covered is shown by red color. It means that displacement is (150+250) m = 400 m

(c) It is clear from the figure that, the Airplane's displacement is in the south direction.

Answer:

magenicts   sshbsunuwi

Explanation:

Option B (Sound) is the appropriate choice.

There are surface and groundwater vibrations that cause individual eardrums to vibrate, causing the sensory organ to be felt, which is considered as a Sound.

The other given alternatives such as:

Gravity - A force that seeks to bring two items together, is gravity. Gravitational influence is a property of all objects with weight.

Magnetism - Magnetism seems to be the force that magnetically exerts whenever they approach as well as repelled each other.

Matter - Material or materials from which a thing is usually made, is a matter.

These three choices are not related to the given question. Thus the above is the right answer.

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No, this roller-coaster would not able to make it around the loop because the hill would need to be higher than the loop's highest part,

The potential energy stored in the roller coaster from the first hill is not sufficient to make around-the-loop.

The sum of all the energy in motion (total kinetic energy) and all the energy that is stored in the system (total potential energy) is known as mechanical energy.

The expression for total mechanical energy can be given as follows

ME= PE + KE

The roller coaster would not be able to complete the loop because the hill would need to be higher than the highest point of the loop, and the potential energy stored in the roller coaster from the first hill would not be enough to complete the circle.

Therefore, the correct answer is option A.

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Answer: 0 miles.

Explanation:

First let's define what the displacement is:

The displacement is defined as the difference between the final position and the initial position.

So, if for example, you start at your house, then go to a store, and then go back to your house, your total displacement will be zero, because the initial position and the final position are the same.

Then when the car reaches the final line, it will be in the same place that it started (because this is an oval track, so the finish line connects with the starting point)

Then the total displacement is 0miles.

Answer; lol im taking that physics exam as well, a m f confused i cant find the answers on the internet

Explanation: #ripaldinepride

Answer:

1.27 m/s.

Explanation:

The following data were obtained from the question:

Displacement (D) = 28 m

Time (t) = 22 secs

Velocity (v) =?

Velocity is simply defined as the rate of change of displacement of an object with time. It can be represented mathematically as:

Velocity (v) = Displacement (D) /Time (t)

v = D/t

With the above formula, we can obtain the swimmer's velocity as follow:

Displacement (D) = 28 m

Time (t) = 22 secs

Velocity (v) =?

v = D/t

v = 28/22

v = 1.27 m/s

Therefore, the swimmer's velocity is 1.27 m/s.

Answer:

1.3 m/s north

Explanation:

Distance = 50m

Displacement = 50m to the right

Distance is the total length of a given path. It is a scalar quantity and thus takes no consideration on the direction of the path.

Displacement on the other hand is the change in position of an object. It is a vector quantity and takes consideration on the direction of the object.

From the question:

The swimmer swims half lap by moving from the left end to the right end of a pool that is 50m long.

Distance = total length of the given path = 50m

Displacement = change in position of the swimmer from the left end (0m) to the right end (50m) = 50 - 0 = 50m

Since direction is important in displacement, the complete details of the displacement should be 50m to the right

Answer:

The distance is 50m and the displacement is also 50 m

Explanation:

the swimmer traveled 50m =distance

the swimmer was now 50m away from the start=displacement

Answer:

B

Explanation:

Answer: No.

Explanation:

A scientific theory is an explanation of some aspect of the natural world that can be tested several times, and follows the scientific method. And, when possible, theories are tested with experiments.

Now, a scientific theory must meet some criteria, and one of those is that it must be supported by several (and independent) strands of evidence.

In this case, we have only one, Meatball, and it is not enough, then it can not be a scientific theory.

I guess a missile?

A bird is not a projectile, a ball isn't really, and an airplane isn't, so, yeah.

?:]

Answer:

She covers the distance is 12 km.

The magnitude of displacement is 8.6 km.

The direction of her displacement is north east.

Explanation:

Given that,

Christina drives his moped 7 kilometers North and stop for lunch and then drive 5 km east.

We need to calculate the total distance

Using formula of distance

[tex]d=d_{1}+d_{2}[/tex]

Put the value into the formula

[tex]d=7+5[/tex]

[tex]d=12\ km[/tex]

We need to calculate the magnitude of displacement

Using formula of displacement

[tex]D=xi+yj[/tex]

[tex]D=5i+7j[/tex]

[tex]D=\sqrt{5^2+7^2}[/tex]

[tex]D= 8.6\ km[/tex]

The direction of her displacement is north east.

Hence, She covers the distance is 12 km.

The magnitude of displacement is 8.6 km.

The direction of her displacement is north east.

Answer:

The cannonball and the ball will both take the same amount of time before they hit the ground.

Explanation:

For a ball fired horizontally from a given height, there is only a vertical acceleration on it towards the ground. This acceleration is equal to the acceleration due to gravity (g = 9.81 m/s^2). A ball dropped from a height will also only experience the same vertical acceleration downwards which is also equal to g = 9.81 m/s^2.

Therefore both the cannonball and the ball will take the same amount of time to hit the ground if they are released/fired from the same height.

Answer:

injecting

Explanation:

Answer:

Elements are made up of only one type of atom. Each element has a unique chemical symbol. Elements can be identified by their atomic number.

Answer:New technology can provide cleaner energy for the environment

Can also help clean the environment.

Explanation:

Which option is potentially environmental benefit of adopting a new technology?

Answer:

Technician B

Explanation:

An engine can be disabled by removing the fuel pump fuse or relay if equipped. Therefore, Technician B is correct.

Engines generally stop suddenly if they suffer from a lack of fuel or sparks. An engine that can stop dead without prior warning and has probably had an instant ignition failure although when it locks solid it's more probably to have seized.

There are two ways to stop a diesel engine, remove the fuel pump fuse or cut off the fuel or the air. The easy way to stop a boat engine is to cut off the air.

The most general reasons for poor engine combustion because of broken valve seals, overused piston rings, holes within cylinders, and forcing air to leak out.

Assuming it's a gasoline-powered vehicle when removing a fuse or breaker for the ignition or fuel injection, the car wouldn't start. An engine can be disabled by cutting off the fuel pump fuse or relay if equipped.

Learn more about engine, here:

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Answer:

K.E=?

Mass=7.56 kg

Velocity=2m/s

Solution::

K.E = 1/2mv^2

K.E=0.5*7.56*(2)^2

K.E= 0.5*7.56*4

K.E=15.12 joules.

Answer:

0.000000009006 or 9.006 x 10^-9

Explanation:

0.0000038 x 0.00237 = 0.000000009006 or 9.006 x 10^-9

Answer:

The heart belongs to the Cardiovascular system. Along with blood vessels and the blood.

Answer: It is c.

Explanation:

260,000 J.

Answer:

C. 260,000

Explanation:

it's not that hard just do the work

i hope this helps

Answer: A-B-C-E-G-K-H-I

Explanation:

Ok, we start at A.

16 pints = x gallons.

We know that:

1 pint = 0.125 al

then:

16pint = 16*(0.125gal) = 2 gal.

The second letter is B.

Now we have:

12,320 yd = X mi

And we know that:

1 mi = 1760 yd.

Then 12,320yd = (12,320/1760) mi = 7mi

the letter is C.

Now we have:

432 cups = X gals

and:

1 cup = 0.0625 gal

then 432 cups = 432*(0.0625 gal) = 27 gal.

The next letter is E.

Now we have:

1/4 ton = X pounds.

And 1 ton = 2000 pounds

then 1/4 ton = (1/4)*2000 pounds = 500 pounds

The next letter is G.

Now we have:

3.5 gal = X ounces.

and we know that:

1 gal = 128 oz

Then:

3.5 gal = 3.5*(128oz) = 448oz

The next letter is K.

Now we have:

1/2 day = x minutes.

and we know that:

1 day = 24*60 min = 1440 min

then 1/2 day = (1/2)*1440 min = 720 min.

The next letter is H.

Now we have:

360 in = x yd

And we know that:

1yd = 36 inches.

then 360 in = (360/36) = 10 yd.

The next letter is I

Now we have:

56 cups = x quarts.

and we know that;

1cup = 0.25 quart

then: 56 cups = 56*0.25 quart = 14

So here this ends.

Then the code is:

A-B-C-E-G-K-H-I

Answer:

measurement of force amplification

Answer:

B

Explanation:

New cells come from something called cell division

Answer:

Cell division

Explanation: