For how long should a force of 130 N be applied to an object of mass 50 kg to change its speed from 20 m/s to
60 m/s?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.