Answer:
1. Define potential Energy: Potential energy is a type of energy an object has because of its position.
2. Where is the potential Energy the highest in the picture? : A
3. Define Kinetic Energy: The energy of a body or a system with respect to the motion of the body or of the particles in the system.
4. Where is the Kinetic Energy the highest in the picture? : C
I hope this helps you!
Answer:
0.5sec
Explanation:
Parameters
Height(H) =20m
Initial velocity(u) = 5m/s
Acceleration due to gravity(g) =10m/s^2
Method one
Using the second law of motion
H=ut-1/2gt^2
20=5t-1/2×10×t^2
20=5t-5t^2
dh/dt = 5-10t
where any constant is zero therefore the 20 is zero
5-10t=0
Collect like terms
-10t= -5
t=1/2 = 0.5sec
2nd method
Parameters
Height(H) =20m
Initial velocity(u) = 5m/s
Acceleration due to gravity(g) =10m/s^2
Using the time taken formula
t=u/g
t=5/10
t=0.5sec
Answer:
the time required for the sound to travel between the whales 0.66 S.
Explanation:
As given in the problem, the velocity of sound wave () is governed by the equation
Given, and
So for salt water, the velocity of sound wave () can be written as
As the whales are d = 1 Km or 1000 m apart from each other, so the time () required for the sound wave to travel this distance is given by
B. become a white dwarf star
It will swell, shed its layers, and become a white dwarf star.
I know the sun does not have enough mass to become a supernova or a black hole.