B. evaporation
c. condensation
They are opposite processes that involve the same transfer of energy
Answer:
f(-9) = 184
Explanation:
f(x)=3x²+5x-14
f(-9)= 3(-9)² +5(-9)-14 Order of Operations : Exponents
= 3(81)+5(-9)-14
= 243+5(-9)-14
= 243-45-14
= 198-14
f(-9)= 184
Hope this helps :)
Answer:
The car exerts the same sized force on the bug as the bug exerts on the car.
Explanation:
Given that
Speed of car = 70 mph
Third law of Newton's
It state that when an object A apply force on the another object B then object B also apply the same force on the object A but in opposite direction .This is known as action reaction .In simple words every action and reaction.
By using the third law of concept,when car and a bug collides then car exerts the same sized force on the bug as the bug exerts on the car.
Answer:
System with earth at centre and body revolving around it.
Explanation:
Given that gravitational and kinetic energy should be nearly equal without changing the mass or height.
So ,
Let us consider a system where we have a body revolving around the earth with a velocity such that it remains in orbit.
Gravitational potential energy at a height h from the ground is given by
For velocities satisfying abow the system can have gpe and ke same in ideal cases.
[Note: For the abow velocity usually the body will escape as potential at infinity will be zero .This can just be a type of system where gpe and ke will be equal without mass and height changing.]