True or False: Write T if the statement is true and write F if it is false. 11. Methyl alcohol, CH3OH, is a nonpolar molecule.
12. Among C-C1, H-C1, C-H and C1-C1, only C1-C1 is polar.
13. Polarity of molecules are determined both by polarity of bonds and molecular geometry.
14. Atoms with high electronegativity have a greater tendency to attract electrons toward itself.
15. S and O are bonded by a polar covalent bond because its electronegativity difference value is 1.0.​

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

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

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s