Answer: C
Step-by-step explanation:
BECUASE I TOOK THE TEST
Answer:
108,000 joules
Step-by-step explanation:
Kinetic energy, k = 1/2 mv^2
Where,
m = mass of the object in kilogram
v = velocity in meters per seconds
If
Velocity of an object = 20 meters per seconds
Kinetic energy = 48,000 joules
Solve for m
k = 1/2 mv^2
48,000 = 1/2 × m × 20^2
48,000 = 1/2 × m × 400
48,000 = 200m
m = 48,000 / 200
m = 240 kg
If it speeds up to 30 meters per second, then what is its new kinetic energy?
k = 1/2 mv^2
Using m = 240 kg
k = 1/2 mv^2
= 1/2 × 240 × 30^2
= 1/2 × 240 × 900
= 216,000 / 2
= 108,000 joules
The new kinetic energy = 108,000 joules
<h2>
Answer:</h2>
A part of a line that starts at one endpoint and extends forever in one direction is a(n): RAY
<h2>
Step-by-step explanation:</h2>
<u>Ray--</u>
A ray is a part of a line that starts at a point and goes infinitely in any direction to infinity i.e. there is no end point for the other end. i.e. it is called a line with one end-point.
Also, it use two undefined terms of mathematics: Point and Line.
Two ray starting with the same end-point and going to different direction form an angle.
Answer:
2x
Step-by-step explanation:
solve it