What is the mass number of the missing daughter nuclei?

90

Explanation:

The mass number of the missing daughter nuclei can be obtained as shown in the attached photo.

90

Explanation:

To calculate the mass number of the missing daughter nuclei, the equation must be balanced.

The sum of the mass number in the left hand side = 1 + 235 = 236

The sum of mass number in the right hand side must be equal to 236.

Then, 236 - (143 + 3×1)

236 - ( 143 + 3)

236 - 146 = 90

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.