Lambda particle is the product of a proton collision with a nucleus . It was found that this particle was lives for much longer time than expected: 10-10 seconds. <span>The lambda is a </span>baryon<span> which is made up of three quarks: an up, a down and a strange quark. The charge of a lambda particle in elementary charges is positive. </span>
Action and reaction are equal and opposite (Newton’s 3rd Law) so a deadly force must create a deadly reaction.
Answer: 20580 Joules of work is done by the firefighter.
Explanation:
Work done is defined as the force times distance travelled.
work=
Given:
mass= 75 kg
acceleration due to gravity =
h= height = 28 m
Putting in the values we get,
work=
Thus 20580 Joules of work is done by the firefighter.
C, the runner moved with constant velocity for 2 seconds before decreasing in speed and running with constant velocity for another 2 seconds
Answer:
W = 234 J
Explanation:
Initial volume of air is given as
finally it is expanded isothermally to new pressure of 101.3 kPa
now by isothermal expansion we know
So work done in above process is given as
Now it is cooled to initial volume at constant pressure
so here in this case work done is given as
Now total work done is given as