Alarge boulder falls from an underwater ledge and crashes on the floor of the ocean. a pod of dolphins is 800 meters away. determined how long it takes for the soundof the crash to reach the dolphins.
o.5 sec
o.3 sec
2.3 sec
1.9 sec

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

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

When using the scientist method, which step comes last?