When operating a crane, which of the following is an important safety precaution? Select all that apply.

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.