Answer:
The answer to your question is: Ke = 144000 Joules
Explanation:
Data
Kinetic energy = ?
mass = 80 kg
speed = 60 m/s
Equation
Ke = 144000 Joules
Answer:
V = ?
C = 3 × 10^8
wavelength = 2.10 × 10^-7
wavelength = C/V
V = C/wavelength
V = 3 × 10^8/2.10 × 10^-7
V = 1.43 × 10^ 15
<h3>
Answer:</h3>
3.4 m/s²
<h3>
Explanation:</h3>
We are given;
- Mass of the box as 25 kg
- Force is 85 N
We are required to determine the acceleration;
- According to second newton's law of motion force is given by the product of mass and acceleration.
- That is;
Force = ma
Rearranging the formula;
a = F ÷ m
Therefore;
acceleration = 85 N ÷ 25 kg
= 3.4 m/s²
Thus, the acceleration of the box will be 3.4 m/s²
A sound is first produced by making something<span> vibrate</span><span>. The sound then travels through a </span><span> medium</span><span> to reach the ears, which are the parts of the body that allow for sounds to be heard.
Vibrate and Medium are the correct answers
</span>
Because incandescent light bulbs emit much, much more heat energy than light energy. So, they convert more of the electric energy put into them into heat energy than light energy.
P.S. Learn this stuff yourself. Don't cheat
