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UNO [17]
3 years ago
15

Why would a model be important when studying the solar system

Physics
2 answers:
Sergio [31]3 years ago
7 0
It could help us see the different sizes of each planet. It could help explain what the universe is or how it began. It could help describe and explain phenomena that cannot be experienced directly. It could help students learn visually. Direct experiences and additional knowledge. It's helpful in developing the power of imagination.
rusak2 [61]3 years ago
3 0
Visualization helps people understand the physicality of the solar system
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Chapter 05, Problem 15 Multiple-Concept Example 7 and Concept Simulation 5.2 review the concepts that play a role in this proble
Llana [10]

Answer:

Explanation:

The question relates to motion on a circular path .

Let the radius of the circular path be R .

The centripetal force for circular motion is provided by frictional force

frictional force is equal to μmg , where μ is coefficient of friction and mg is weight

Equating cenrtipetal force and frictionl force in the case of car A

mv² / R = μmg

R = v² /μg

= 26.8 x 26.8 / .335 x 9.8

= 218.77 m

In case of moton of car B

mv² / R = μmg

v²  = μRg

= .683  x 218.77x 9.8

= 1464.35

v = 38.26 m /s .

3 0
3 years ago
The given function represents the position of a particle traveling along a horizontal line. s(t) = 2t3 − 3t2 − 36t + 6 for t ≥ 0
igor_vitrenko [27]

1) The velocity of the particle is given by the derivative of the position. So, if we derive s(t), we get the velocity of the particle as a function of the time:

v(t)=s'(t)=(2t^3-3t^2-36t+6)'=6t^2-6t-36

2) The acceleration of the particle is given by the derivative of the velocity. So, if we derive v(t), we get the acceleration of the particle as a function of the time:

a(t)=v'(t)=(6t^2-6t-36)'=12t-6

8 0
4 years ago
Why will a delivery truck filled with birds sitting on its floor be heavier than a truck with the same birds flying around insid
34kurt

The reason why a delivery truck filled with birds sitting on the floor be heavier than a truck with the same birds flying around is because when the birds are sitting on the floor, they are adding their weight to the truck.

Meanwhile, if the birds are flying around they aren't resting on the truck or touching it, so therefore their weight wouldn't be added to the truck.

The mass of the truck will remain the same as you cannot change the mass but the weight will vary depending on the items and objects placed in it.

4 0
3 years ago
two small spheres spaced 35cm apart have equal charge how many excess elecotrons must be present on each sphere if the magnitude
Maksim231197 [3]

Answer:

Number of electrons, n = 395.47

Explanation:

It is given that,

Force between two spheres, F=2.2\times 10^{-21}\ N

Distance between spheres, r = 35 cm = 0.35 m

A force of repulsion is acting on the spheres. It is given by :

F=k\dfrac{q^2}{r^2}

q^2=\dfrac{F.r^2}{k}

q^2=\dfrac{2.2\times 10^{-21}\ N\times (0.35\ m)^2}{9\times 10^9\ Nm^2/C^2}

q^2=2.99\times 10^{-32}

q=1.72\times 10^{-16}\ C

Let n is the number of electrons on the spheres. So,

q = n e

n=\dfrac{q}{e}

n=\dfrac{1.72\times 10^{-16}}{1.6\times 10^{-19}}

n = 395.47

So, the the number of excess electrons on the spheres are 395.47. Hence, this is the required solution.

8 0
3 years ago
During a chemical reaction atoms can be rearranged or destroyed but not created <br> True <br> False
Alex Ar [27]

False. This is because atoms can be rearranged, but they can not be destroyed or created. This explains the law of conservation of mass.

8 0
3 years ago
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