Answer:
1) D. appears to be moving back toward unmanned exploration in the form of deep-space satellite exploration.
2) D. Mars
3) C. other planets and moons in the solar system and beyond
4) A. lifeforms
5) A. coping with the extreme atmospheres
Answer:
(a) The total energy of the object at any point in its motion is 0.0416 J
(b) The amplitude of the motion is 0.0167 m
(c) The maximum speed attained by the object during its motion is 0.577 m/s
Explanation:
Given;
mass of the toy, m = 0.25 kg
force constant of the spring, k = 300 N/m
displacement of the toy, x = 0.012 m
speed of the toy, v = 0.4 m/s
(a) The total energy of the object at any point in its motion
E = ¹/₂mv² + ¹/₂kx²
E = ¹/₂ (0.25)(0.4)² + ¹/₂ (300)(0.012)²
E = 0.0416 J
(b) the amplitude of the motion
E = ¹/₂KA²

(c) the maximum speed attained by the object during its motion

No. It’s moving at a constant speed (speed is not changing) in a straight line (same direction so velocity is not changing) so it is not accelerating. Acceleration only occurs if there’s a change in speed/velocity.
Answer:

Explanation:
Index of refraction:
where
is the refractive index,
is the speed of light in vacuum and
is the speed of light in medium.
The speed of light in vacuum is 
Speed of light in medium is 
Thus,

Index of refraction of this substance through yellow light is 
There is a net force of 15N in The direction of Levi