Answer:
Explanation:
Given
When 
mass is attached to the spring its frequency is 
when another mass 
is attached to , frequency changes to 
frequency of spring mass system is given by
for
for and
divide 1 and 2
squaring
Answer:
Changes in the object's momentum (answer D)
Explanation:
A net force will cause an object to change its velocity, and that will affect the object's momentum, which is defined by the product of the object's mass times its velocity.
So, select the last option (D) in the given list.
Blank 1 Thermal energy
Blank 2 heat
Thermal energy is the total energy of the particles.
Heat is the movement of thermal energy from a substance at a higher temperature to another at a lower temperature
None of the lenses on that list is a converting lens.
None are converging either.
