help me please, i need it fast

Answer:

Alice Distance = 100 meters

Peter's Distance = 3 km

Alice Displacement and Peter's displacement are both 100 meters upwards.

Explanation:

To solve this question, we have to first define distance and displacement.

Distance is simply the measurement of the sum of all paths travelled from one point to another while displacement is measurement of the shortest distance from initial point to final point.

Now, Alice and Peter are moving from the same point.

Alice distance travelled is 100 meters.

Also, her displacement will be 100 meters because it is the shortest distance to the summit of the cliff.

Now, for Peter, he decides to take a longer route which is 3 km in distance.

However, the shortest path which is the displacement is still 100 meters.

Thus, Peter's displacement is 100 meters.

Answer:

true.

Explanation:

Answer:

Also, you could do this for the groups:

Group 1- creatures with scales

Group 2- creatures with fur

Group 3- creatures with feathers

For 4 groups you could possible do:

Group 1- no legs

Group 2- 2 legs with wings

Group 3- 2 legs without wings

Group 4- 4 legs

Answer:

\43 ° n, 72 ° w

42° 0' 30" N, 71° 30' 58" W

The bar of aluminum has a higher temperature than gold bar as the particles that make up the aluminum bar are moving faster.

Temperature is a physical quantity that expresses hot and cold or a measure of the average kinetic energy of the atoms or molecules in the system.

Thermal conductivity is the rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area.

Aluminum has low density. It has high thermal conductivity, has excellent resistance for corrosion and can be easily cast, machined and formed.

Gold has high corrosion resistance. It is good conductor of electricity.

Aluminum has high thermal conductivity than gold. So, the particles in the aluminum bar moves faster as compared to gold. Therefore, the temperature of aluminum bar is higher than gold bar.

To learn more about Aluminum and Gold here

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Answer:    3 years ago thats crazy

Explanation:

Answer:

[tex]a=2\ m/s^2[/tex]

Explanation:

Given that,

Initial velocity, u = 44 m/s

Final velocity, v = 66 m/s

Time, t = 11 s

Acceleration = rate of change of velocity

[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{66-44}{11}\\\\a=2\ m/s^2[/tex]

So, the acceleration of the car is [tex]2\ m/s^2[/tex].

Answer:

the comparison of known quantity to unknown quantity or standard guantity is called measurment

Answer:

Firstly they are, by design, easy to use in most scientific and engineering calculations; you only ever have to consider multiples of 10. If I’m given a measurement of 3.4 kilometres, I can instantly see that it’s 3′400 metres, or 0.0034 Megametres, or 3′400′000 millimetres. It’s not even necessary to use arithmetic, I just have to remember the definitions of the prefixes (“kilo” is a thousand, “megametre” is a million, “milli” is a thousandth) and shift the decimal point across to the left or the right. This is especially useful when we’re considering areas, speeds, energies, or other things that have multiple units; for instance,

1 metre^2 = (1000millimetre)^2 = 1000000 mm^2.

If we were to do an equivalent conversion in Imperial, we would have

1 mile^2 = (1760 yards)^2

and we immediately have to figure out what the square of 1760 is! However, the fact that SI is based on multiples of 10 has the downside that we can’t consider division by 3, 4, 8, or 12 very easily.

Secondly they are (mostly) defined in terms of things that are (or, that we believe to be) fundamental constants. The second is defined by a certain kind of radiation that comes from a caesium atom. The metre is defined in terms of the second and the speed of light. The kelvin is defined in terms of the triple point of water. The mole is the number of atoms in 12 grams of carbon-12. The candela is defined in terms of the light intensity you get from a very specific light source. The ampere is defined using the Lorentz force between two wires. The only exception is the kilogram, which is still defined by the mass of a very specific lump of metal in a vault in France (we’re still working on a good definition for that one).

Thirdly, most of the Imperial and US customary units are defined in terms of SI. Even if you’re not personally using SI, you are probably using equipment that was designed using SI.

Answer:

Explanation:

given:

A car is traveling at an average speed of 70 m/s.

find:

How many km would the car travel in 6.5 hrs. ?

solution:

distance = velocity over time

let velocity = 70 m/s

           time = 6.5 hrs.

convert velocity 70 m/s into m/h for consistency of units.

70 mi. x   3600 sec.  =  252,000 mi/hour

  sec.          1 hr.

now plugin values into the formula d = v/t

d = 252,000 miles/hour

              6.5 hours

d = 38,769.23 miles

therefore, the distance travelled in 6.5 hours with a speed of 70 m/s is 38,769.23 miles

Answer:

The total distance traveled by the comet is 225000 [km]

Explanation:

In order to determine the travel distance we must use the following kinematics equation:

x = v*t

where:

x = distance traveled [km]

v = velocity = 50000 [km/h]

t = time = 4.5 [h]

x = 50000*4.5 = 225000 [km]

Answer:

The answer is D. They are a mass.

Answer:

“they have mass” because if they don’t have mass they can’t exert force even if they have speed if they have no mass they can’t do anything or exert force

Explanation:

Answer:

Wave model

Explanation:

Answer:

The answer would be a wave model

Explanation:

Answer:

D.) Nuclear fusion begins under high pressure

Explanation:

Answer: Answer is D

I took the test little while back.

Answer:

velocity is the rate of change of distance moved with a time in a specific direction. While speed is the rate if distance with time in no specific direction

Answer:

c glass

Explanation:

beacause glass is transparent and it would be easier to for refraction

Answer:

b

Explanation:

try looking it up if u need further help google is there to help you

Answer:

the answer is b

Answer:

Weather

Weather describes what the atmosphere is like at a specific time and place, and may include temperature, wind, and precipitation. Weather is the change we experience from day to day. Climate is the long-term average of weather in a particular spot.

Explanation:

Answer:

A

Explanation:

to simplify let's make it apart the denominator into three part

[tex] \frac{ {3xy}^{2} }{ {x}^{2} {y}^{2} } - \frac{ {8x}^{2} y}{ {x}^{2} {y}^{2} } + \frac{ {5x}^{2} {y}^{2} }{ {x}^{2} {y}^{2} } [/tex]

now let's simplify

[tex] \frac{3}{x} - \frac{8}{y} + 5[/tex]

so the answer is A

hope it helps

for any question comment me ❤❤

Answer:

when an object move from its place is called an mation

Answer:

A heterogenous mixture.

Explanation:

If you added sand to your coffee, the kind of mixture your coffee would now

be is a heterogenous mixture.

A heterogenous mixture can be defined as any mixture which has a different or non-uniform composition and properties throughout any given sample of the mixture. This ultimately implies that, the constituents of a heterogenous mixture always remain separate in the sample and as such comprises of two or more phases.

Hence, a mixture of sand and coffee is simply a heterogenous mixture and can easily be separated into their various components.

Answer:

the average speed of the car during this time interval is 40 m/s i thinkk..

Answer:

By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

Explanation:

i got that from google hopefully it works

Answer:

read the explanation

Explanation:

Purchased electricity is fed into our TVs and is converted to light and sound.

Electricity goes into an electric bulb and is converted to visible light and heat energy.

Chemical Energy is converted to Electrical Energy (stove)

Chemical food energy is converted to Energy to Work (person running).

Answer:

Gasoline/chemical is put into our cars, and with the help of electrical energy from a battery, provides mechanical energy/ kinetic energy

red is sus

Answer:

A. Fusion

Explanation:

Because of the costs involved in maintaining high temperatures and pressure, nuclear fusion method for generating electrical energy.

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles with the release of energy.

The energy realeased in the process is known as nuclear energy which can be converted into electricity.

The downside of this method of electricity generation is the equipment that will accomodate the high temperature process.

Thus, because of the costs involved in maintaining high temperatures and pressure, nuclear fusion method for generating electrical energy.

Learn more about nuclear fusion here: https://brainly.com/question/17870368

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All periodic motions are not circular bcox they aren't similar to each other as u know the motion repeats the periodic table and also repeats itself of the tym perform the motion of the periodic...

Answer:

t is usually seen that all circular motions are usually periodic

Explanation:

but all periodic motions are not circular

this can be proved by an example for example when vehicles runs in uniform speed of motion then its speed is called periodic motion

where is his speed might not be called circular motion

if my answer is correct please mark my answer as brainliest

Explanation:

[tex]p1 \times v1 = p2 \times v2 [/tex]

[tex]p1 = initial \: pressure \\ v1 = initial \: volume \\ p2 = final \: pressure \\ v2 = final \: volume[/tex]

You're looking for p2. So, divide both sides by v2...

[tex] \frac{p1 \times v1}{v2} = p2[/tex]

volume of a cylinder is

[tex]h \times \pi \: \times {r}^{2} [/tex]

let's assume r = 1

[tex] \frac{p1 \times (20cm \times \pi)}{(60cm \times \pi)} = p2[/tex]

the Pi's cancel out, the 20/60 can be reduced to 1/3.

So you end up with

[tex]p1 \times \frac{1}{3} = p2[/tex]

or as the book shows....

[tex] \frac{1}{3} p[/tex]

Answer:

Grain

Explanation:

I just got it wrong :)