lilyclairehutson

26.10.2020 • 

Physics

The element tested 2 Betta decay. What will be charging and mass number of a new element? The element tested 1 bette decay and 1 alpha decay. What will be the charge and mass number of the new element?
The element tested 2 alpha decay. What will be the charge and mass number of the new element?
The element tested 6 bette decay and 4 alpha decay. What will be the charge and mass number of the new element?
The element tested 12 bette decay and 9 alpha decay. What will be the charge and mass number of the new element?
At the beginning of time, the atomic nuclei of the isotope were 2400 with a half-life of 5 minutes. How many isotope nuclei will remain intact in 10 minutes?
The half-life of radium is 1600 years. In what time will the mass of radioactive radon decrease by 4 times?
The number of radioactive atoms in 36 days decreased by 8 times. Define the decay period of this chemical?

Ответ:

TamB01

08.02.2020

Physics

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0.4m/s

Explanation:

where F= force, m= mass, and a=acceleration

we also know that,

a = Δv / t where Δv = change in velocity and t = time

thus F = m ( Δv / t)

0.4m/s = Δv

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