Most of the elements (85%) in the periodic table are.

A water tank has the shape of an inverted circular cone with base radius 2m and height 4m. If water is being pumped into the tank at a rate of 2 m3 / min, find the rate at which the water level is rising when the water is 3 m deep.

Does a satellite have its greatest speed when it is closest to or farthest from earth?

Which term best describes this step of the investigative process? question communication of results peer review experiment control

What applied force accelerates a 20-kg stone straight up at 10m/s^2

If the temperature of the steam in a pwr is 315°c (600°f), what is the maximum efficiency obtainable from the power plant?

Based on the number of valence electrons, what is the correct formula when nitrogen bonds to hydrogen? A) NH2 B) NH3 C) NH4 D) N2H

Can all waves be distorted, deflected, or changed? Explain your response.

External fertilization is common for organisms that live in A. trees B. water C. deserts D. open feilds

What happens to the velocity of a sound wave in the air if the temperature of the air increases?

The gulf stream begins at the tip of Florida and flows up all the way to NW Europe causing what? A. The gulf stream does not go to NW Europe. B. colder climate C. storms D. warmer climate