The half-life observed by an observer at rest is 1.25 s
Explanation:
In this problem, the particle is travelling at a significant fraction of the speed of light: therefore, we have to consider the phenomenon of the time dilation. The half-life of the particle as measured by an observer at rest is given by

where
is the proper half-life of the particle
v is the speed of the particle
c is the speed of light
For the particle in this problem,


Substituting into the equation, we find:

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Answer:
i would say the third one
Explanation:
may i be brainliest?
Answer:
e = 10 V
Explanation:
given,
number of the coaxial loops = 10
Cross sectional area = 0.5 m²
magnitude of magnetic field =
B = 3 T + (2 T/s)*t.
B = ( 3+ 2 t ) T
induced potential difference = ?
At time = 2 s
we know,
induced emf

∅ = B . A




e = -10 V
magnitude of induced emf
|e| = |-10 V|
e = 10 V
the induced potential difference in the loop = e = 10 V
Darker is warmer C. Black objects.
4. gravitational
5.all
6.sound
7.all
8.chemical
9.electrical.
10.sound