Determine the gain in gravitational potential energy when a 4.00 kg rock is raised 18.000 m.

Can anybody me with this? ? (picture included.)

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?