A 60. 0 kg object is moving east at 8. 00 m/s, and then slows down to 4. 00 m/s. How much work was done? –1,440 J –480 J 1,440 J 2,880 J.

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories. if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

These two squirrels live in the same ecosystem. what type of interaction do the images represent? a. direct competition b. mutualism c. interference competition d. symbiotic e. indirect competition

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.