Two skaters stand on ice. one weights 250 N, and the other weights 500 N. They push against each other and move in opposite directions. Describe the momentum of each skater after they push away from each other.

Answers

Answer 1

Answer:

Because law of momentum, makes it equal


Related Questions

How to convert 104 Km to M

Answers

Answer:

m=104000

Explanation:

by 1km=1000m

104km=?

Now

104km=104×1000m

=104000m

Therefore,m=104000 ans

104 kilometers is equal to 104,000 meters.

A conversion factor is a ratio that shows how two different units of measurement relate to each other. You can convert a value from one unit to another by multiplying or dividing the original value by a conversion factor.

For example,

Since there are 1000 meters in a kilometer, we need to multiply the distance in kilometers by 1000 to convert it into meters.

So, to convert 104 kilometers to meters:

104 Km * 1000 = 104,000 meters

Therefore, 104 kilometers is equal to 104,000 meters.

Learn more about conversion factor, here:

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Density and Years: What do you know?Objectives: determine and compare density of pennies to assess composition. Procedure:1. Read the directions and create a data table accordingly.2. Place 15-20 pennies in order of consecutive dates. Find the mass of each penny and record.3. Find the volume of all 5 pennies by water displacement and record in your data table. Record the volume adding 5 more pennies at a time until you have measured them all (15-20).a. Find the average volume of 1 penny.4. Calculate the density of each penny and graph according to the year.5. If the density of copper is 8.96 g/cm3 what would the mass of a pure copper penny be?6. Draw a conclusion.7. How might this relate to a real world example?

Answers

Answer:I dunno

Explanation:it is the best thing I ever said in this app

!!DUE TODAY, NEED HELP ASAP!!
A student measured the masses of some aluminum and copper cylinders of different volumes. The data is displayed below:
Aluminum: Copper:
Volume (mL)
Mass (g)




Volume (mL)
Mass (g)
3.7
9.99




1.8
16.02
6
16.2




2.3
20.47
8.5
22.99




3.5
31.15
10.74
29




4.2
37.38
15
40.5




5.8
51.62



On graph paper graph the data above on ONE graph. Use the graph paper so the longer side is your y-axis.
Use up the majority of the graph paper. Do not make a small graph!
Use a ruler/straight edge so you graph is neat.
You will need to plot the points for each substance and create a double line graph. When connecting your points for each substance, continue the lines past the plotted points.
Be sure to include a key to identify the substances.
Make your X-axis volume(mL) and your Y-axis mass(g)
Look at the numbers for both substances when creating your scales. You will most likely have a different scale for mass and volume. What is the lowest number? What is the highest number? What does it make sense to go by?

Calculate the density of each metal.

Aluminum:_________________________ Copper:________________________



What happens to the mass of the copper at the volume increases from 6 to 8mL?




Which sample is more dense? How does the graph show you this?

Answers

Answer:  The data are not arranged in a useful pattern.  I arranged them as best I could and made a graph in Excel for demonstration.

Explanation:  The data are plotted with mass on the x axis and volume on the y.  Add a key to identify the top line as CU and the bottom as Al.

The density of Cu is 8.9 g/ml and 2.70 for Al.  

The mass of copper increases by 17.8 grams going from 6 to 8 ml.  (8.9 g/ml)*(2 ml) = 17.8 grams.

Copper is more dense. c The graph shows that for the same volumes, copper has the higher mass.

If you burn a citronella candle near your picnic will it keep mosquitoes away

Answers

Answer:

Thanks!!!

Explanation:

Answer:

true

Explanation:

ASAP. Five stars + brainless.

A procedure calls for 4 parts reagent A to 16 parts water.What is the dilution of reagent A in water?

a) 4/16
b) 1/5
c) 1/4
d) 4/12

Answers

my guess answer iss 1/4 if incorrect sorr

1/5 is the dilution of reagent A in water.

Explanation:

The dilution factor of the diluted solution is determined by dividing the final volume of the diluted solution by the volume of the undiluted solution.

       [tex]D.F.=\frac{V_f}{V_i}[/tex]

       Where:

                 D.F = Dilution factor

                 [tex]V_f[/tex] = Final volume of the diluted solution

                 [tex]V_i[/tex]= Initial volume of the undiluted solution

And the dilution is represented as 1 : D.F.

Given:

4 parts of the reagent and 16 parts of water are mixed together to form a diluted solution.

To find:

The dilution of reagent A in water

Solution:

Parts of reagent A =[tex]V_i = 4[/tex]

Parts of water = 16

Final volume of solution = [tex]V _f = 4 + 16 = 20[/tex]

The dilution factor of reagent A:

[tex]D.F=\frac{20}{4}=5[/tex]

The dilution of the reagent A = [tex]1:5=\frac{1}{5}[/tex]

1/5 is the dilution of reagent A in water

Learn more about Dilution here:

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Help!! due tomorrow













.

Answers

Answer:

It's B. The molecules in the system have more kinetic energy than a solid.

will mark brainliest if correct
Which methods separate a mixture according to the size of the particles?

a
filtration and chromatography
b
distillation and chromatography
c
filtration and evaporation
d
distillation and evaporation

Answers

Answer:

filtration and chromatography

Explanation:

I hope this will help you :-)


May someone help me with the answer to this question I’ve been stuck on it

Answers

Explanation:

No, that would be incorrect

Answer:

There arre two main parts of the atom, the nucleus and the orbital rings. The three subatomic particles are contained in each of these, the proton and neutron together in the nucleus and the electrons orbiting in the rings.

Which of the following statements about alcohols is false?
A. Ethanol is soluble in water.
B. Ethanol has a higher boiling point than ethane.
C. Ethanol produces hydrogen when it burns.
D. None of these

Answers

Answer:

It's C. Ethanol produces hydrogen when it burns

When burned, ethanol produces water and CO2.

Assertion : When the added electron goes to smaller n=3 quantum level, the electron-
electron repulsion is much less.

Reason: The added electron occupies a smaller region of space .

Answers

It is due to low volume of electron that causes large distance between two electrons.

When the added electron goes to smaller quantum level, the repulsive force between two electrons is less because the electron which is added occupies small space due to less volume so there is a large distance between two electrons that leads to less force of repulsion.

If the electron has more volume so it occupies more space and there will more repulsive force between two electrons so that's why we can say that the smaller volume of electron is the reason of less repulsive force.

https://brainly.com/question/24387646

English
M.
3.x - 9
2r-7
.X + 2
18

Answers

Answer:

it will come answer 21 write

Give an example of a non-biological chemical reaction that involves carbon. Name the process that converts a solid compound into a gas.

Answers

Answer:  The combustion of methane (CH4) with O2.

Explanation:  This is a chemical reaction involving carbon:

 CH4 + 2O2 = CO2 + 2H2O

Describe the color change that would be observed in water in left hand beaker

Answers

Answer:

is there supposed to be a photo with this?

Explanation:

what evidence have you discovered to explain how the fossil record provides relative ages? use the words: mass extinction, superposition, fossils, and relative age

Answers

Answer:

Relative dating is based on the positions of fossils in rock layers. Lower layers were laid down earlier, so they are assumed to contain older fossils. This gives the fossil an approximate age in years. Absolute dating is often based on the amount of carbon-14 or other radioactive element that remains in a fossil up until extinction.

Relative dating is a method of dating where the geologic events are arranged and the rocks are left behind in a sequence. They function on the basis of the stratigraphy and don't provide us with actual numeric data.

It provides us with the relative ages such as mass extinction the fossils are superimposed. It is based on the position of fossils in the layers of the rocks.

Learn more about the discoveries to explain how the fossil record.

brainly.com/question/22311467.

Element Z has 2 natural isotopes. One isotope has a mass of 15.0 amu and a relative abundance of 30%. The other isotope has a mass of 16.0 amu. What is the second isotope's relative abundance?

Answers

Answer:

70%

Explanation:

Just substract 100 % - 30%

Someone plz help me !!

Science
Or
Bias?

Answers

1st one is Science and the 2nd one is Bias

Chewing food to break it down into smaller particles represents a physical change, but the charging of starch into sugars by enzymes in the digestive system represents a chemical change.Chemical or physical change?

Answers

Answer:

Chemical change

Explanation:

The charging of starch into sugars by enzymes in the digestive system shows a chemical change.

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

A pan containing 20.0 grams of water was allowed to cool from a temperature of 95.0 °C. If the amount of heat released is 1,200 joules, what is the approximate final temperature of the water?
75 °C
78 °C
81 °C
87 °C

Answers

Answer:

81 °C

Explanation:

This is a calorimetry question so a few things you will need for this. The calorimetry equation q=mcΔT & the specific heat of water (4.2J/g•°C). Other definitions are:

q = heat added/released by a sample

m = mass of sample

c=specific heat of sample

ΔT = change in temperature

from here we can rearrange the equation to state:

q/(mc) = ΔT

1200J/((20.0g)(4.2J/g•°C)) = ΔT

14°C = ΔT

If the starting temperature was 95.0°C and we know that the temperature was cooled by 14°C then the final temperature of the water would be 81.

Answer:

C. 81 c

Explanation:

took the test :)

define mitochondria. ​

Answers

Answer:

An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).

Explanation:

Freezing water cracking limestone

a
Chemical Change
b
Physical Change

Answers

Answer:

Freezing water and cracking limestone are physical changes.

Which of these answers describes a scientific law?
(Pls)

Answers

Answer:

big ablsolty long pp

Explanation:

dong

. Arrange the following in order of increasing radius:
a) Mg2+, Na+, Al3+
b) Na+, Al3+ , Mg2+
c) Mg2+ , Al3+ , Na+
d) Al3+ , Mg2+, Na+
guys pls help i will venmo you money

Answers

Answer:

Al3+<Mg2+<Na+

Explanation:

this is because of nuclear charge (no. of protons)

atomic radius is inversely proportional to nuclear charge.

HELP IM TIMED!!!!!!!!!
Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the population density of bison living in Yellowstone? a. 1.3 bison/mi^2 b. 16 bison/mi^2 c. 77 bison/mi^2 d. 0.77 bison/mi^2

Answers

Answer:

A. 1.3 bison/mi^2

Explanation:

4500 bison divided by 3472 sq miles is 1.3 bison per mile squared.

11:48 Tue 24 Aug
47%
3. Graphite, aform of carbon, conducts electricity because it has:
(1 Point)

Answers

Answer:

carbon because it is the main answer of these

hi <3

graphite is able to conduct electricity because it has delocalised electrons.

explanation:

carbon can bond 4 times, but in graphite it is only bonding to three other carbons, leaving one electron free to carry charge

hope this helps <33

Come up with 2 examples of derived units from everyday life.

Answers

Answer:

answer

Explanation:

Area : Square Meters,

Volume : Cubic Meters,

Density : Kilograms per Meter Cube,

Velocity : Meters per Second Squared,

Force : Newtons (Mass multiplied by Acceleration or Mass multiplied by Displacement divided by Time squared)…..

Vapor pressure of any liquid _______. A. increases with increases in temperature B. increases with decreases in temperature C. is not affected by changes in temperature D. increases with increases in volume of the liquid E. None of the Above

Answers

Answer:

increase with increases in temperature

Explanation:

please mark me brainleast

What series does the following compound belong to?

Answers

Answer:

B

Carboxylic acid

Explanation:

I'm not entirely sure, but this should be it

what is sublimation ​

Answers

Explanation:

Sublimation is the conversion of a substance from the solid to the gaseous state without its becoming liquid. ... Freeze-drying of food to preserve it involves sublimation of water from the food in a frozen state under high vacuum. See also vaporization; phase diagram.

What is the approximate mass of one electron?

Answers

Answer:

9.1093837015 × 10^−31 kg

Very small mass

cuantos gramos de soluto y solvente tendra 127 gramos de solición cuya concentración es 14% m/m ayuda para resolverlo

Answers

banetshegtsjegsgeheb

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