The answer would probably be B.
Answer:
A) a snowboarder who increases speed when traveling downhill
Answer:
m1u1+m2u2=(m1+m2)v.
500×4+1500×2=(500+1500)V.
2000+3000=2000V.
5000=2000V.
V=2.5m/s
Your answer is D- high energy and short wavelengths : )
Vitamin A may reduce the risk for certain types of cancers. It also increases the activity of immune system cells.
