#1). anthony does the same amount of work as angel, with more power.
#2). power = (work)/(time) = 41,000 j / 500 s = 82 watts .
#3). power = (work) / (time) = 83 j / 3 sec = 27.7 watts
b and c are both true.
c isotopes is the correct answer. isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.all isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.
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centripetal acceleration is (speed-squared) / (radius)
ca = (6 m/s)² / (9 m)
ca = (36 m²/s²) / (9 m)
ca = (36/9) (m²/m·s²)
centripetal acceleration = 4 m/s²