Which option is the force with the greatest magnitude?(1 point) the force needed to lift a hairbrush

the force needed to lift a textbook

the force needed to lift a chair

the force needed to lift a pencil

What best describes a sonar wave? transverse and electromagnetic transverse and mechanical longitudinal and electromagnetic longitudinal and mechanical

Two solutions of the same uv-absorbing molecule were analyzed by uv-vis spectroscopy on the same instrument using 1 cm pathlength cells. use data from the table to calculate by what percentage the concentration of solution b is compared to that of solution a.sample absorbance at 315nm a 0.45 b 0.80

Provides most of the energy used in the world today. question 4 options: wind fossil fuel moving water sunlight