Answer asap
a steady activity in which your heart supplies oxygen to fuel your muscles is

aerobic
anaerobic
intense
maximal

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.