A hammer is thrown upward with a speed of 14 m/s on the surface of planet x where the acceleration due to gravity is 3. 5 m/s2and there is no atmosphere. What is the speed of the hammer after 8. 0 s? (hint: the calculation is just for magnitude).

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.