The density of sodium is 968 g/cm3. suppose you need 250 gm of sodium for an experiment. which volume of sodium do you need?
a. 2,420 cm3
b. 0.26 cm3
c. 3.87 cm3

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?