The glowing filament in a lamp is radiating energy at a rate of 60 {\rm w}. at the filament’s temperature of 1500{\rm ^\circ c}, the emissivity is 0.23.
what is the surface area of the filament? (in m2)

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

What is the coefficient of kinetic friction μk between the block and the tabletop?