Using Newton's second law explain how a rocket can have an increase in acceleration over time

Select all the true statements about the cosmic microwave background radiation

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt