The force needed to make an object with a mass of 5kg accelerate at 10 m/sec2 = Question 5 options: 500 Newtons 50 Newtons
100 Newtons 10 Newtons

Explanation:

Here, mass = 5kg acceleration = 10m/s^2according to the question ;F = m×a ( from 2nd law of motion)F = 5kg × 10m/s^2F = 50kgm/s^2 or NEWTON SO THE FORCE NEEDED IS 50 NEWTONI HOPE THAT THIS ANSWER HELPS YOU

Answer : option a) 84explanation :

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;