What conditions, common to most stars including our sun, appear to be necessary in order for fusion reactions to take place?

A force of 500 N is applied to a hydraulic jack piston that is 0.2 m in diameter. If the piston that supports the load has a diameter of 2.

What is atmospheric perspective? a. the effect produced by rounding objects to appear three-dimensional. b. the effect produced by techniques that make objects appear to go back into the distance, creating a realistic look. c.

Describe how evaporation relates to heat regulation in your body

How are physical and chemical changes similar?

A zinc atom has 7 electrons. to what level are it's electrons found

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

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is