A b) In the figure alongside, O is the interior point of AABC.
If AB = 7 cm, BC = 11 cm and CA = 8 cm, show that
OA + OB + OC > 13 cm.
8 cm
7 cm
O
C
11 cm
B

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

What type of force holds atoms together in a crystal?