The wavelength of a wave (λ) is given by λ

where c is the wave speed and f is the frequency
Answer:
potential energy is the ability to do work
Answer:
80m
Explanation:
u=20,R=?,sin theta=1,g=10
R=u²sin2theta/g
R=20²x2/10
R=400x2=800/10
R=80m
Answer:
90
Explanation:
The mass number of the missing daughter nuclei can be obtained as shown in the attached photo.