Wich of the following salt solutions is the mosts concentrated ? a.20 grams of salt dissolve in 100 ml of water
b.30 grams of salt dissolve in 100 mL of water
c.30 grams of salt dissolve in 200 mL of water
d.50 grams of salt dissolve in 200 mL of water​

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.