Which of the following uses a filament to produce light? A. incandescent lights B. bioluminescent lights C. florescent lights D. neon lights

A conducting material must have many free electrons to qualify as an insulator.

A ballet student with her arms and a leg extended spins with an initial rotational speed of 0.90rev/s. As she draws her arms and leg in toward her body, her rotational inertia becomes 0.80 kg⋅m2 and her rotational velocity is 4.1rev/s.

Water droplets tend to have a spherical, round shape. Explain this fact in terms of the polar nature of water molecules.

Which words do the letter "T's represent in the FITT principle? Choose exactly 2 answers that are correct. time 0 taste 0 test 0 type

Balanced forces acting on an object never change the object's

When a constant force acts on an object, what does the object's change in momentum depend upon? check all that apply. check all that apply. the change in momentum depends upon the change in the velocity of the object.

how much current is in a circuit that includes a 9-volt battery and a bulb with a resistance of 3 ohms?

Most volcanoes are located at? A. Convergent and Divergent Boundaries B. Midocean Ridges C. Transform Boundaries D. Hot Spots

For a copper-silver alloy of composition 51 wt% Ag-49 wt% Cu and at 775˚C (1425˚F) (see Animated Figure 9.7) do the following: (a) Determine the mass fractions of and phases. Mass fraction = [The tolerance is + / - 5.0%.

Discuss how gravity impacts how galaxies behave when they get close to one another