Answer:
426136363636.36365 Bq
Explanation:
Grays = 12
Mass = 2 kg
Time = 880
Energy = 0.4 MeV
Activity is given by

The activity N//t of the radioactive source is 426136363636.36365 Bq
The answer would be E7. Galaxies categorized as E0 look to
be nearly perfect, while those registered as E7 seem much extended than they
are widespread. It is worth noting, though, that a galaxy's look is connected
to how it lies on the sky when viewed from Earth. An E7 galaxy is very long and
thin or the flattest of them all.
If the angle between the vector and the y-axis is Θ ,
then the y-component of the vector is
(length of the vector) times cosine( Θ ),
and the x-component of the vector is
(length of the vector) times sine( Θ ) .
Answer:
Explanation:
given that
Distance above the ground, s = 1.2 m
Time taken by the ball, t = 3 s
Velocity of the ball, v = 1.2/3 = 0.4 m/s
Maximum height reached by the ball is then given by the formula
H = v² / 2g
H = 0.4² / 2 * 9.8
H = 0.16 / 19.6
H = 0.0082 m or rather, 0.82 cm
Yes if you need to know why i will tell you why