Answer:
Wave A= 20m
Wave B= 30m
Explanation:
The amplitude of a wave is the maximum displacement (or height) from its equillibrum position.
The equilibrium position is at 0 meters for both waves.
Thus, amplitude of wave A= 20m
Amplitude of wave B= 30m
Answer: (3) different decay modes and different half-lives
Explanation: Potassium-37 and Potassium-42 have the same number of protons but different numbers of neutrons i.e. they have same atomic number but different mass number. They are isotopes. Thus K-37 and K-42 have different decay modes
K-37 is positron decay and K-42 is beta decay.
K-37 has a half life of 1.23 seconds and K-42 has a half life of 12.4 hrs.
Thus they have different decay modes and different half lives.
Answer:
m = 1125.9 g.
Explanation:
Hey there!
In this case, according to the given information, it turns out possible for us to solve this problem by using the definition of density as mass divided by volume:
Thus, we solve for the mass in the equation to obtain:
Then, we plug in the values to obtain:
Regards!