How many watt-hours does a 80 watt light bulb use if it runs for 3.5 hours?

Using the periodic table, what can you conclude about the classification of iodine?

A child on a spinning playground ride is 0.36 m from the center of the ride. The centripetal force on the child is 19 N. What is the mass of the child if the child has a tangential speed of 0.54 m/s?

What is the main source of groundwater? A. precipitation falling into man-made wells B. precipitation seeping through pores and cracks in the ground C. morning dew collecting on the surface of shrubs and grasses

Find the magnitude of the angular acceleration α of the swing bar. be sure to use the absolute value function in your answer, since no comparison of m1, m2, and mbar has been made.

What is the last nuclear fusion stage in the life of a low-mass star like the sun?

Why does heat energy always move from a higher temperature to a lower temperature?

Which of the following explains how heat flow within Earth changes its surface? Molten material moves in one direction, moving the plates in the opposite direction Molten material moves in one direction, moving the plates in the same direction

Regarding perspectives on abnormality, what is the common ground between the medical and psychoanalytic perspectives? a. Both view abnormal behaviors as symptoms of underlying problems. b.

The force in Newtons on a particle directed along the x-axis is given by F (x) = exp ( - (x/5) + 5) for x≥0 where x is in meters. The particle is constrained to move along the x-axis.

What are electromagnetic waves? what are its characteristics? how do we classify them?