The formula for a kinetic energy (KE) is
KE = 0.5*m*v<span>²
Given m = 1.0 kg, v = 5.0 m/s, so
KE = 0.5*1.0*(5.0)</span><span>² = 12.5 J
The answer is D.</span>
Answer:
Explanation:
We can see from the question that
and
% of
=>
from the question % of
Substituting this into the equation
=>
From the equation above
<u>Answer:</u>
• black hole - one of the most dense objects in the universe
• red giant - a very large star
• white dwarf - an old, very dense hot star that is cooling
• nebula - a mass of gas and dust
Shooking the rope up and down 5 times per seconds means that there are 5 cycles of the wave (or 5 crests) in one second, and so its frequency is
.
The period T is the reciprocal of the wave's frequency, therefore it is