At lift-off the rocket engine exerts an upward force of 25000 N. What is the resultant force on the rocket? What is it's initial acceleration? Please help me!

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.