Answer: A, a polished pale yellow surface would likely be the best reflector of heat energy.
Answer:

Explanation:
From the question we are told that
Initial speed
Final speed 
Generally the Newtons equation of motion is mathematically represented by

with
Therefore

Therefore




Answer: seen below.
Explanation:
Firstly we need to remember what exothermic reaction is in thermodynamics. exothermic reaction describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, sound, or electricity.
In this scenario, due to the heating up nature noticed by the ring during breaking shows that energy is being released to the surrounding in the form of heat which suggest it being an exothermic reaction.
Answer:
Explanation:
x(t) = (3.5 cm)cos[(0.8 rad/s)t]
Angular velocity ω = .8
Time period = 2π / ω
= 2 X 3.14 / .8
= 7.85 s
First time block will pass through equilibrium is T/4 ,
Second time block will pass through equilibrium
= 3.T/4
= 3/4 x 7.85
= 5.8875 s
Answer:

Explanation:
The time taken by the light to travel a given distance is defined as:

Here c is obviously the speed of light. Now we convert the average distance form Venus to Earth to meters:

Finally, we calculate the minutes taken by the light to travel from Venus to Earth:
