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KIM [24]
3 years ago
11

The gravitational force between Earth and the Sun is a two-way force. Both the planet and the Sun attract each other. However, E

arth revolves around the Sun rather than the Sun revolving around Earth. Which statement BEST explains the orbit of the Earth around the Sun?
A) The Sun is at the center of the Solar System.
B) The Sun’s mass is much greater than Earth’s.
C) Earth rotates about its axis, but the Sun does not.
D) Other planets also try to move the Sun around them
Physics
1 answer:
kumpel [21]3 years ago
5 0

Answer:

b

Explanation:

The Sun exert a gravitational pull on the earth just as the earth exert gravitational pull on the sun but the sun mass is bigger than the earth, hence the earth orbits round the sun in elliptical orbit due to the greater gravitational pull of the sun.

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if a car engine does 600,000 J of work over a 500m distance and the mass of the car is 250Kg then what is the final velocity of
drek231 [11]

Given that

Work = 600,000 J ,

distance(S) = 500 m ,

mass (m) = 250 Kg ,

Determine the velocity of car (v) = ?

                 We know that,

                                Work = Force × distance

                               => Force = Work ÷ distance

                                              = 600,000 ÷ 500

                                              = 500 N .

                   Also Force F =  m.a  ; from Newtons II law

                                      500 = 250 × a  

                                             a = 2 m/s.

<em>Final Velocity from the given  formula </em>

                                     V² = u² + 2.a.s

                                         = 0 + 2 × 2 × 500

                                         = \sqrt{2000}

                                    <em>   v = 44.7 m/s</em>

8 0
3 years ago
Answer the following question about the attached diagram:
Paladinen [302]
I'm not entirely sure, but I think the first is A, and the second is inverted.
3 0
3 years ago
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Why are Newton’s 3 laws important?
slava [35]
They are the physics of the world??
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3 years ago
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At a local swimming pool, the diving board is elevated h = 5.5 m above the pool's surface and overhangs the pool edge by L = 2 m
Margaret [11]

Answer:

Part a)

t = \sqrt{\frac{2h}{g}}

Part b)

t = 1.06 s

Part c)

L  = 4.86 m

Explanation:

Part a)

The height of the diving board is given as

h = 5.5 m

now the speed of the diver is given as

v_0 = 2.7 m/s

when the diver will jump into the water then his displacement in vertical direction is same as that of height of diving board

So we will have

y = v_y t + \frac{1}{2}at^2

h = 0 + \frac{1}{2}gt^2

t = \sqrt{\frac{2h}{g}}

Part b)

t = \sqrt{\frac{2h}{g}}

plug in the values in the above equation

t = \sqrt{\frac{2(5.5 m)}{9.81}

t = 1.06 s

Part c)

Horizontal distance moved by the diver is given as

d = v_0 t

d = 2.7 \times 1.06

d = 2.86 m

so the distance from the edge of the pool is given as

L = 2.86 + 2

L  = 4.86 m

4 0
3 years ago
Widely accepted scientific principles do not change. true or false​
nikklg [1K]

Answer:

False

Explanation:

As technology advances and new evidence is found which either contradicts or supports accepted scientific principles, the principles are susceptible to change.

3 0
3 years ago
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