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NISA [10]
3 years ago
15

Using complete sentences, explain why graphs are so important to scientists.

Physics
1 answer:
morpeh [17]3 years ago
5 0

Answer: It keeps them organized

Explanation: ... ew

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I need to write an acrostic poem on Globalisation and i need help. Does anyone have any ideas?
Aleonysh [2.5K]

Answer:

you could talk about the people and say something like change

Explanation:

5 0
2 years ago
Car A hits car B (initially at rest and of equal mass) frombehind while going 35 m/s. Immediately after the collision, car Bmove
kolezko [41]

Answer:

The fraction of kinetic energy lost in the collision in term of the initial energy is 0.49.

Explanation:

As the final and initial velocities are known it is possible then the kinetic energy is possible to calculate for each instant.

By definition, the kinetic energy is:

k = 0.5*mV^2

Expressing the initial and final kinetic energy for cars A and B:

ki=0.5*maVa_{i}^2+0.5*mbVb_{i}^2

kf=0.5*maVa_{f}^2+0.5*mbVb_{f}^2

Since the masses are equals:

m=ma=mb

For the known velocities, the kinetics energies result:

ki=0.5*mVa_{i}^2

ki=0.5*m(35 m/s)^2=612.5m^2/s^2*m

kf=0.5*mbVb_{f}^2

kf=0.5*m(25 m/s)^2=312.5m^2/s^2*m

The lost energy in the collision is the difference between the initial and final kinectic energies:

kl=ki-kf

kl = 612.5m^2/s^2*m-312.5 m^2/s^2*m=300 m^2/s^2*m

Finally the relation between the lost and the initial kinetic energy:

kl/ki = 300 m^2/s^2 * m / 612.5 m^2/s^2 * m

kl/ki = 24/49=0.49

7 0
3 years ago
The flow of electrons through a circuit is measured in which of the following units? A. electrical pressure B. amperes C. volts
damaskus [11]

The total quantity of electrons that have flowed through a circuit is a
quantity of charge, measured in Coulombs, or in Ampere-seconds.

The <em><u>rate</u></em> of flow of electrons, or more accurately the rate of flow of
the charge on them, is electrical current.  Its unit is the Ampere. 
1 Ampere is 1 Coulomb of charge per second.


8 0
3 years ago
You need to determine the density of a ceramic statue. if you suspend it from a spring scale, the scale reads 32.4 n . if you th
Mandarinka [93]
Well, the density of the water is
{1000 \frac{kg}{ {m}^{3} } }
so i believe that is what the question is asking for :)
4 0
3 years ago
A gaseous sample of this element is bombarded by photons of various energies (in these same units). Match each photon to the res
solniwko [45]
1) n=1 -> n=2 : delta E = -5+11 = 6. The answer is D 
<span>2) n=1 -> n=3 : delta E = -2+11 = 9. The answer is B </span>
<span>3) n=1 -> n=4 : delta E = -1+11 = 10. No solution available </span>
<span>4) n=1 -> infinity delta E = 11. The answer is A </span>
<span>5) not absorbed would be C, as there is no transition with delta E of 8. </span>
8 0
3 years ago
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