From complete stop, a car reaches a velocity of 280 km/s east in 7 seconds. what is the rate of acceleration?

a: 4 km/s
b: 7 km/s
c: 40 km/s
d: 70 km/s

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs