Two half-lives produce (1/2) x (1/2) = 1/4 of the decaying substance.
There would still be 400 atoms. But 300 would have thrown off
particles from their nucleuses, and only 100 would still be radioactive.
D. Strong nuclear forces are responsible for holding together the nucleus of an atom; weak nuclear forces are involved when certain types of atoms break down.
Answer:
Explanation:
Given
mass of ice
Final temperature of liquid
Specific heat of water
Latent heat of fusion
Latent heat of vaporization
Suppose M is the mass of steam at
Heat required to melt ice and convert it to water at
Heat released by steam
and must be equal as the heat gained by ice is equal to Heat released by steam
Assuming the force the car exerts is 140,000 N and that the car is stationary on a flat surface. You can apply Newton's Second Law of Motion.
F = MA
Where the acceleration is gravity (-9.8m/s).
140,000 = M*-9.8
M = 14285.71kg
Answer:
9. 45 N North East
Unbalanced
Accelerate
10. 45 N right and 6 N down
Unbalanced
Accelerate
Explanation:
Hope this helps!