Answer:
(a) 0.833 j
(b) 2.497 j
(c) 4.1625 j
(d) 4.995 watt
Explanation:
We have given force F = 5 N
Mass of the body m = 15 kg
So acceleration
As the body starts from rest so initial velocity u = 0 m/sec
(a) From second equation of motion
For t = 1 sec
We know that work done W =force × distance = 5×0.1666 =0.833 j
(b) For t = 2 sec
We know that work done W =force × distance = 5×0.666 =3.33 j
So work done in second second = 3.33-0.833 = 2.497 j
(c) For t = 3 sec
We know that work done W =force × distance = 5×1.4985 =7.4925 j
So work done in third second = 7.4925 - 2.497 -0.833 = 4.1625 j
(d) Velocity at the end of third second v = u+at
So v = 0+0.333×3 = 0.999 m /sec
We know that power P = force × velocity
So power = 5× 0.999 = 4.995 watt
Answer:
3.28 degree
Explanation:
We are given that
Distance between the ruled lines on a diffraction grating, d=1900nm=
Where
We have to find the angular width of the gap between the first order spectrum and the second order spectrum.
We know that
Using the formula
m=1
Now, m=2
Hence, the angular width of the gap between the first order spectrum and the second order spectrum=3.28 degree
Answer:
<h2>3 Bags</h2>
Explanation:
1) Since the bags hold three pineapples
2) we can also hold two pineapples in one bag.
Hope this helps! <3
No, i think centripetal force can never do work on object
Work = force x distance
Centripetal force can create the force, but there will never be any effect on the distance, which make it became 0
Hope this helps
Answer:
La estatura del hombre en unidades del Sistema Internacional de Pesos y Medidas es 1.905 metros.
Explanation:
En el Sistema Internacional de Pesos y Medidas se utilizan los metros para la medición más usual de la estatura humana. La estatura equivalente en este sistema se determina con las siguientes reglas de tres simple:
La estatura del hombre en unidades del Sistema Internacional de Pesos y Medidas es 1.905 metros.