Answer:
Workdone = 600 Kilojoules
Explanation:
Given the following data:
Time = 8 seconds
Power = 75,000 Watts
Distance = 58 m
To find the work done;
Power can be defined as the energy required to do work per unit time.
Mathematically, it is given by the formula;
Thus, work done is given by the formula;
Workdone = power * time
Workdone = 75000 * 8
Workdone = 600,000 = 600 KJ
Answer:
Explanation:
Given
Force exerted by machine 
Weight of Block 
Considering inclination to be 
After resolving Forces We get
A ) 14 billion years = 14,000,000,000
b ) 1 year = 365 · 24 · 3,600 = 31,536 · 10³
The answer is <span>4.4143 x 10-19 joules
</span>
The energy (E) is: E = h * f
h - Planck's constant
f - the frequency
The frequency (f) is: f = c/∧
c - the speed of light
∧ - the wavelength
Hence:
E = h * f = h * c / ∧
We know:
h = 6.626 x 10⁻³⁴<span> Js
c = </span>2.998 x 10⁸<span> m/s
</span>∧ = 4.5 x 10⁻⁷<span> m
E = </span>6.626 x 10⁻³⁴ Js * 2.998 x 10⁸ m/s / 4.5 x 10⁻⁷ m
E = 4.4143 x 10⁻³⁴ ⁺ ⁸ ⁻ ⁽⁻⁷⁾ J
E = 4.4143 x 10⁻¹⁹ J
