Spaceships a and b are traveling directly toward each other at a speed 0.5c relative to the earth, and each has a headlight aimed toward the other ship.

what value do technicians on ship b get by measuring the speed of the light emitted by ship a's headlight?

answer choices

1).75c

2)1.0c

3)1.5c

4) .5c

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f