The condition in which the cornea or the lens is irregularly shaped

How do scientists study the history of life on Earth?

A) by studying fossils of ancient life only B) by comparing DNA among living organisms only C) both by studying fossils of ancient life and by using telescopes to study habitable worlds elsewhere D) both by studying fossils of ancient life and comparing DNA among living organisms E) by using telescopes to study habitable worlds elsewhere only

A 3.00-kg object traveling 20.0 m/s west collides with a 5.00-kg mass object traveling 12.0 m/s west. The collision is perfectly elastic, what is the velocity of the 3.00-kg object after the collision?

A) 20.0 m/s east B) 8.00 m/s west C) 12.0 m/s west D) 12.0 m/s east E) 10.0 m/s west

A hypernova is one of several types of events that create a gamma ray burst

a. True b. False Indicate whether the statement is true or false

An ideal gas is compressed to one-half its original volume during an isothermal process. The final pressure of the gas

A) increases to twice its original value. B) increases to less than twice its original value. C) increases to more than twice its original value. D) does not change.