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Ber [7]
3 years ago
14

Which planet has the GREATEST attraction to the sun? A) Mars B) Pluto C) Saturn D) Mercury

Physics
2 answers:
emmasim [6.3K]3 years ago
6 0
I believe the answer is D. It is D because Mercury is the closest planet to the sun and has the greatest gravitational attraction between the sun
Lubov Fominskaja [6]3 years ago
5 0
It is D Mercury
Because the closer a planet is to the sun the stronger attraction it has
and out of these mercury is the closet to the sun 
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Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 1.8×104 m/s when at a distance
natali 33 [55]

Answer:

9.4 x 10⁴ m/s

Explanation:

In circular or elliptical orbits , the angular momentum is conserved because torque is zero.  

mr₁v₁ = mr₂v₂

2.2 x 10¹¹ x 1.8 x 10⁴ = 4.2 x 10¹⁰ v₂

v₂ = 9.42 x 10⁴ m/s.

= 9.4 x 10⁴ m/s

7 0
3 years ago
A"boat"is"moving"to"the"right"at"5"m/s"with"respect"to"the"water."A"wave"moving"to"the"left,"opposite"the"motion"of"the"boat."Th
s2008m [1.1K]

Answer:

0.99m

Explanation:

Firs you calculate the relative velocity between the boat and the wave. The velocity of the boat is 5m/s and the velocity of the wave is given by:

v=\lambda f=\lambda\frac{1}{T}=(110m)\frac{1}{8.3s}=13.25\frac{m}{s}

the relative velocity is:

v'=13.25m/s-5m/s=8.25\frac{m}{s}

This velocity is used to know which is the distance traveled by the boat after 20 seconds:

x'=v't=(8.25m/s)(20s)=165m

Next, you use the general for of a wave:

f(x,t)=Acos(kx-\omega t)=Acos(\frac{2\pi}{\lambda}x-\omega t)

you take the amplitude as 2.0/2 = 1.0m.

\omega=\frac{2\pi}{T}=\frac{2\pi}{8.3s}=0.75\frac{rad}{s}

by replacing the values of the parameters in f(x,t) you obtain the vertical displacement of the boat:

f(165,20)=1.0m\ cos(\frac{2\pi}{110m}(165)-(0.75\frac{rad}{s})(20s))\\\\f(165,20)=0.99m

6 0
4 years ago
Number of protons and electrons and atomic mass for a given element
faltersainse [42]

Explanation:

You can simply subtract the atomic number from the mass number in order to find the number of neutrons. If the atom is neutral, the number of electrons will be equal to the number of protons.

Remember!

1. Your mass number is the total number of neutrons and protons within the atom.

2. Your atomic number is the amount of protons within the atom.

3. For neutral atoms, the electron number is the same as the atomic number.

5 0
3 years ago
Which of the following allows the human body to maintain stability in response to a viral infection
tiny-mole [99]
The spine is the one that keeps a huminss body mantaned
3 0
3 years ago
A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was
masha68 [24]

This is an example of Uniform Speed

EXPLANATION

Uniform Speed => no change in speed

Uniform Accelerations Speed => There is a change in speed, but the acceleration remains the same.

#LearnWithEXO

5 0
3 years ago
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