Answer:
8 seconds
Explanation:
power (P) is defined as the rate at which work is done.
power is measured in Watts (W) , when the work done is measured in Joules (J) and time in seconds
by the definition of power,

Answer:
is the current through the body of the man.
energy dissipated.
Explanation:
Given:
- time for which the current lasted,

- potential difference between the feet,

- resistance between the feet,

<u>Now, from the Ohm's law we have:</u>


is the current through the body of the man.
<u>Energy dissipated in the body:</u>



Explanation:
The given data is as follows.
Length of beam, (L) = 5.50 m
Weight of the beam, (
) = 332 N
Weight of the Suki, (
) = 505 N
After crossing the left support of the beam by the suki then at some overhang distance the beam starts o tip. And, this is the maximum distance we need to calculate. Therefore, at the left support we will set up the moment and equate it to zero.

= 0
x = 
= 
= 0.986 m
Hence, the suki can come (2 - 0.986) m = 1.014 from the end before the beam begins to tip.
Thus, we can conclude that suki can come 1.014 m close to the end before the beam begins to tip.
Answer:

Explanation:
The refractive index of a medium is given by the following formula:

where,
η = refractive index = 1.5
= angle of incidence = ?
= angle of refraction = 15°
Therefore,


Answer:#1 NEWTON’S THREE LAWS OF MOTION LAID THE FOUNDATION OF CLASSICAL MECHANICS #2 HE WAS THE FIRST TO FORMULATE THE NOTION OF GRAVITY AS A UNIVERSAL FORCE
#3 NEWTON’S PRINCIPIA IS ONE OF THE MOST IMPORTANT WORKS IN THE HISTORY OF SCIENCE
#4 HE DISCOVERED THE GENERALISED BINOMIAL THEOREM IN 1665
#5 ISAAC NEWTON INVENTED CALCULUS
#6 HE INVENTED THE FIRST REFLECTING TELESCOPE
#7 HE DID GROUND BREAKING WORK IN OPTICS
#8 HE IDENTIFIED LIGHT AS THE SOURCE OF COLOUR SENSATION
#9 HE INFERRED CORRECTLY THE OBLATENESS OF EARTH’S SPHEROIDAL FIGURE
#10 SIR ISAAC NEWTON WAS THE SECOND SCIENTIST TO BE KNIGHTED