How long does it take to accelerate an object from rest to 15 m/s if the acceleration was 3 m/s2?
A: 2 s
O B:4 s
C: 5 s
O D:15 s

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents