The apparent backward movement of a planet is calledA. heliocentric motion.
B. retrograde motion.
C. Kepler's first law of motion.
D. eccentricity.

Answers

Answer 1

Answer: The apparent backward movement of a planet is called B.retrograde motion.

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One property that makes electromagnetic waves differ from other types of waves is that they canmove particles in a medium

travel in a vacuum

transfer energy

create a disturbance

Answers

Create a disturbance

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.50×1016 kg and a radius of 9.00 km .What is the speed of a satellite orbiting 4.60 km above the surface?

Answers

Answer:

8.58 m/s.

Explanation:

Given,

Mass of the asteroid,M = 1.50 x 10¹⁶ Kg

radius = 9 Km

distance of the satellite, r = 4.60 Km

Speed of the satellite = ?

R = 9 + 4.60 = 13.60 Km

Speed of the satellite rotating in orbit

$v = \sqrt{(GM)/(R)}$

G is gravitational constant

$v = \sqrt{(6.67* 10^(-11)* 1.50* 10^(16))/(13.60* 10^3)}$

v = 8.58 m/s

Speed of the satellite is equal to 8.58 m/s.

Discuss gravitational force and strong nuclear force. Describe at least two ways that they are alike and two ways that they are different.

Answers

Gravitational force is the slight attraction of bodies caused by their masses.

Strong nuclear force is the colossal force possessing protons together in an atomic nucleus.
Alike:

They are both attractive forces.
They are both charge-independent

Different:

Vigorous nuclear force only applies to protons while gravity applies to all matter.
Gravity occurs on all levels of space while the robust nuclear force only occurs at the sub-atomic level.

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