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Fudgin [204]
3 years ago
12

the length of time it takes a planet to revolve around the sun is equivalent to witch of the following?

Physics
2 answers:
Marina86 [1]3 years ago
6 0
It really depends on how far or close the planet is from the sun

krok68 [10]3 years ago
6 0

Answer:

The length of its year.

Explanation:

When Earth completes a full rotation, a year has completed. So, the same can be the same for other orbiting planet. The moon for example takes  29.5 days to revolve around the Earth, so one moon year is   29.5 Earth days.

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The unit of electric current is the _____.<br><br> A) volt<br> B) ohm<br> C) ampere<br> D) faraday
professor190 [17]

C

the unit of electric current is the ampere, often shortened to amp


6 0
3 years ago
Read 2 more answers
The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium. According to modern science, wher
Vera_Pavlovna [14]

Answer:

They were produced by stars that lived and died before our solar system was born.

Explanation:

According to what it's understood today, all elements heavier than hydrogen (including helium and excluding some that were created in laboratories) are created through nuclear fusion in the core of stars.

They start fusing hydrogen into helium, then as the star grows older helium is fused into beryllium and so on for all the periodic table.

So as far as science understands it today it's a literal truth that we are made of stars. (as almost everything else)

8 0
3 years ago
1. My grass is dying, and I believe it's because it is not getting enough water. Sol
trasher [3.6K]

Answer: I actually need the same answer

Explanation:

5 0
3 years ago
You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 12-m-hi
Vlada [557]

Answer:

Vmax=11.53 m/s

Explanation:

from conservation of energy

      E_A} =E_{B}

     Spring potential energy =potential energy due to elevation

   0.5*k*x²= mg(h_{B}-h_{A} )=mgh

   0.5*k*2.3²= 430*9.81*6

         k=9568.92 N/m

For safety reason

                                 k"=1.13 *k= 1.13*9568.92

                                    k"=10812.88 N/m

agsin from conservation of energy

      E_A} =E_{C}

    spring potential energy=change in kinetic energy

   0.5*k"*x²=0.5*m*V_{max}^{2}

      10812.88 *2.3²=430*V_{max}^{2}

           V_{max}=11.53 m/s

5 0
3 years ago
When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for
sveta [45]

Answer:

F = -4567.40 N

Explanation:

Given that,

The power developed by the engine, P = 196 hp

1 hp = 746 W

196 hp = 146157 W

Speed of the car, v = 32 m/s

Let F is the total friction force acting on the car. The product of force and velocity is called the power developed by the engine. It is given by :

P=-F\times v

F=\dfrac{-P}{v}

F=\dfrac{-146157\ W}{32\ m/s}

F = -4567.40 N

So, the total frictional force acting on the car is 4567.40 N. Hence, this is the required solution.

7 0
3 years ago
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