What were most of the elements discovered when Mendeleev developed his original periodic table?

a. gases

b. radioactive

c. liquids

d. solids

Which statement best describes how charges behave? Question options: Opposite charges repel against each other and like charges attract to each other. Charges do not interact with each other. Charges do not exist.

If two identical wires carrying a certain current in the same direction are placed parallel to each other, they will experience a force of repulsion. True / False.

What is the function of a lighting conductor?

A 75 kg Spider Man running at 3.0 m/s jumps onto a trash can lid that has a mass of 10kg and that is already moving in the same direction as Spiderman, at 2.0 m/s.

The chart shows data for four moving objects. Object Final Velocity (m/s) 29 Change in Time (s) Initial Velocity (m/s) 11 10 12 20 W X Y IZ Which object has the greatest acceleration? 34 Ow OZ

You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before going to bed each night.

Work is a product of A force and distance B force and heat energy C cause and heat energy D cause and effect

An exploration submarine should be able to descend 1200 m down in the ocean. If the ocean density is 1020 kg/m3, what is the maximum pressure on the submarine hull?

Why cooking pans don't have have metal handles?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band