Două mobile se mişcă rectiliniu şi uniform, după legile x1= 2·t + 5 şi x2=-2·t +9. Momentul de timp (exprimat în secunde) la care cele două mobile se întâlnesc este: *

If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?