2. The illustration shows the forces in Newtons (N) acting on three different blocks. Block 1
3N->
K3N
Which boxes will move under these
conditions?
A. Blocks 1 and 2
B. Blocks 2 and 3
C. Blocks 1 and 3
D. Blocks 1, 2, and 3
Block 2
Block 3
SN
K3N
3N->

In science and physics what is the standard unit of measure for speed?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass