From a 5-m elevation, a baseball player throws a ball horizontally that lands 25 m downrange. What is the pitching speed?
A. 20 m/s
B. 10 m/s
C. 25 m/s
D. not enough information.
Answer: C
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The average force that a bungee cord exerts on a jumper, multiplied by the time of stretch, equals the jumper's change in
A) velocity. B) acceleration. C) momentum. D) kinetic energy. E) all of the above
Using Bentonite slurries to stabilize liquids in porous substances is an example of
A. Bioremediation B. Tertiary sewage treatment C. A containment method of remediation D. Extraction techniques of remediation E. In vitro extraction techniques
Processes that decrease seawater salinity include evaporation and sea ice formation.
a. true b. false
Major ecosystem impacts of oil spills include all of the following except ________
A) risk of fire along coastlines where the flammable material has washed ashore B) death of vegetation along coastlines where the oil has washed ashore C) suffocation of animals whose gills or lungs have been compromised with oil D) death of birds that have been immobilized by the oil coating their feathers