What's more reactive potassium lithium sodium or rubidium

If two plates diverge at a rate of 1.3 cm/year, howmuch farther apart will the plates be after 200 millionyears?

What is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is free fluoride

A long stairway with a metal handrail runs between the houses of Amelia and her friend Michelle. After getting their parents' permission, the two girls often play near the stairs.

G Water enters a house through a pipe 2.40 cm in diameter, at an absolute pressure of 4.10 atm. The pipe leading to the second-floor bathroom, 5.20 m above, is 1.20 cm in diameter. The flow speed at the inlet pipe is 4.

In a series circuit, when you add more resistance, what will happen to the amount of current?

Does aliens exist in this world

An olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the sprinter's average acceleration?

If a construction worker drops a wrench from the top of a building 375 feet high the wrench will be s (t) = - 16t2 + 375 feet above the ground after t seconds. Determine the velocity of the wrench 4 seonds after it was was dropped.

Astronomical methods that have provided insights about universe

What is an ethical vacuum?