According to newton's first law of motion, an object at rest will remain at rest until an force acts upon it?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.