Their atomic numbers are all the same, because they all have the same number of protons. But their atomic weights are different, because they have different numbers of neutrons.
Answer:
0.05 rad/s
Explanation:
7.8 km = 7800 m
For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g
But centripetal acceleration is product of angular velocity squared and radius of rotation r
2.77 m/s^2
70 km/hr * 1 hr/60 sec * 1000 m/km = 19.44 m/s
accel. = (V(f) - V(i))/t
= 19.44 / 7
accel. = 2.77 m/s^2
And by the way, this car sucks!!!!!!
Weight is the measurement of the pull of gravity on an object, while mass is the measurement of the amount of matter that an object contains.
I think its E. the control rods are used to control <span>the fission rate of uranium and plutonium. Hope this helps!! </span>