Help! A scientist has two containers. Inside each container is a blue liquid. The liquids are substances. What can the scientist do to help find out whether these two liquids are both the same substance?

a. Smell each liquid and compare the odors.
b. Weigh each liquid and compare the weights.
c. Measure the volume of each liquid and compare the volumes.
d. Measure the temperature of each liquid and compare the temperatures.

A

Explanation:

i took it this morning

what is the question here. i think you messed up.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied