An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. What is the skater's momentum?
A. 130 kg x m/s
B. 32.5 kg x m/s
C. 163 kg x m/s
D. 67 kg x m/s

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?