Potassium, Group 1 calcium, Group 2
iodine, Group 17
neon, Group 18

Which two elements in the list would bond together based on their ionic charges?

(1 point)

potassium and iodine

calcium and potassium

calcium and neon

potassium and neon

Hydrogen and helium are both members of?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?