Given that ;
Energy (work ) Produced by bulb =20 KJ = 20000 J
Input power = 15 KW
Output power given by the bulb = Rate of doing work
= Work ÷ time
= 20000 ÷ 1800 <em>(since 1 min = 60 seconds)</em>
= 11.11 W
Noe, efficiency is the ratio of output power to input power
η = output power ÷ input power
= 11.11 ÷ 15
= 0.74
= 74%
<em>Efficiency of light bulb is 74%</em>
<em>If you liked the procedure, please give me brainliest</em>
Answer:
A. Here object is moving with increasing velocity
B. Here the object is moving with decreasing velocity that is it is decelerating
C. Here the initial and final velocity are the same so the object moves at constant velocity
D. Here the object started from rest but reached a certain velocity with time so a non zero acceleration was attained
Answer:
Yes, I'm pretty sure it is. That's why I don't click on it!
Answer:
A Peregrine Falcon that weighs 1.5 kg is gliding at 800 meters above the ground. How much potential energy does it have?
5. The same falcon spots a mouse in the brush below her. She dives towards the ground and reaches a maximum velocity of 320 km/hr (Yes, a Peregrine falcon really does have a top speed of over 240 mph!) What is the falcons Kinetic energy at its top speed
