Driving while sleep impaired is much safer than driving while intoxicated.

Which scientist explained that the lines in the spectrum reflect the energy changes of electrons for an element's atom when an electron jumps from an orbital of higher energy to one of lower energy? A. John Dalton B. Ernest Rutherford C. J. J.

A boy throws a ball into the air at 10.2 m/s. Assuming that only gravity acts on the ball, how high does it rise, in m?

A basic observation of a star is how bright it appears. This brightness is known as the star's A. luminosity. B. absent magnitude. C. apparent magnitude. D. absolute magnitude.

Why is most space exploration accomplished with spacecraft that do not have astronauts on board

Two light bulbs have resistances of 400 Ω and 800 Ω. Part APart complete The two light bulbs are connected in series across a 120-V line. Find the current through each bulb. Enter your answers numerically separated by a comma. I400, I800 = 0.100,0.

a cannon sits on a stationary railroad flatcar with a total mass of 1000 kg. when a 10 kg cannonball is fired to the left at a speed of 50 m/s, what is the speed of the flatcar

The breaking car had 10,000 J of kinetic energy before breaking after breaking it had 2000 J of kinetic energy. How much thermal energy did the brakes gain?

Scientific endeavor is sometimes accompanied by negative tradeoffs. true or false? : 0

The difference between two numbers is 15. When twice the smaller number is subtracted from three times the larger number, the difference is 58. What is the larger number?

After Moseley's discovery in 1913, the periodic law stated that physical and chemical properties tend to repeat periodically when elements are arranged according to what trend?