What type of radiological weapon uses the energy from splitting the atoms (fission) of special nuclear material to produce devastating effects, including thermal energy, a blast wave, penetrating neutron and gamma radiation, and contamination with radioactive fallout

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.