A round asteroid has a surface gravity
of 0.0288 m/s^2. If the mass of the
asteroid is 1.10 x 10^18 kg, what is its
radius?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

What is the answer to these problems 30 pt

The radioactive isotope of lead, pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. if 1 gram of this isotope is present initially, how long will it take for 80% of the lead to decay? (round your answer to two decimal places.)