If something is 50% efficient, how many joules of wasted energy will there be if 750J of energy is put in?

Physics

2 answers:

Sidana [21]1 year ago

8 0

$\large{{\bold{ \underline{ \underline{ \overline{ \overline{ \red{☆Solution :—}}}}}}}}$

↪Total energy = 750 J

↪Efficiency = 50%

↪Wasted energy = 50% [ 100% - 50%]

Amount of wasted energy

↦ 750 x 50%

↦ 750 x 0.5

↦ 375 J

Andreas93 [3]1 year ago

7 0

Answer:

375 J

Explanation:

Total energy = 750 J

Efficiency = 50%

Wasted energy = 50% [100% - 50%]

Amount of wasted energy

= 750 x 50%

= 750 x 0.5

= 375 J

You might be interested in

Light with a single wavelength falls on two slits separated by 0.510 mm. In the resulting interference pattern on a screen 2.24

scZoUnD [109]

Answer: 655.7 nm

Explanation:

Given

The slits are separated by $d=0.510\ mm$

Distance between slits and screen is $D=2.24\ m$

Adjacent bright fringes are $\beta =2.88\ mm$ apart

Also, the distance between bright fringes is given by

$\Rightarrow \beta =\dfrac{\lambda D}{d}\quad [\lambda=\text{Wavelength of light}]\\\\\text{Insert the values}\\\\\Rightarrow 2.88\times 10^{-3}=\dfrac{\lambda \cdot 2.24}{0.510\times 10^{-3}}\\\\\Rightarrow \lambda =\dfrac{2.88\times 10^{-3}\times 0.510\times 10^{-3}}{2.24}\\\\\Rightarrow \lambda =0.6557\times 10^{-6}\ m\\\Rightarrow \lambda =655.7\ nm$