How much work is needed to change the speed of a 2.0 kilogram object from 5.0 meters per second to 15 meters per second?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

What is r i 4.5+10r=-6.5 with work pls