Fluid ounces measure in volume
<span>The rate at which work is done or energy is used is referred to as power. </span>
Answer:
a = 1.055 x 10¹⁷ m/s²
Explanation:
First, we will find the force on electron:
where,
F = Force = ?
E = Electric Field = 6 x 10⁵ N/C
q = charge on electron = 1.6 x 10⁻¹⁹ C
Therefore,
F = 9.6 x 10⁻¹⁴ N
Now, we will calculate the acceleration using Newton's Second Law:
where,
a = acceleration = ?
m = mass of electron = 9.1 x 10⁻³¹ kg
therefore,
<u>a = 1.055 x 10¹⁷ m/s²</u>
B.temperature is an indirect measurement of the heat energy in a substance
Answer:
The power of a weightlifter is 100.5 Watt.
Explanation:
- Power is the rate at which the work is done. It can also be defined as the amount of energy converted or transferred in to other forms per unit time.
- Mathematically,
Power=Workdone/Timetaken
- In this case, work is done by lifting the 614.7 N barbell against gravity given by the potential energy.
- Potential Energy = mgh= Force* distance= 614.7*4.48=2753.85 J.
- Now, Power= Workdone/Timetaken= 2753.85/27.4=100.5 Watts
Therefore, the power of a weight lifter when a 614.7 N barbell is lifted 4.48 m in 27.4 seconds is 100.5 Watt.
