Question 2 A student conducts an experiment to determine the effect of adding salt on the boiling temperature
water. The results are shown below.
boiling temperature
Sample Amount of Salt Boiling Temperature(oC)
Sample 10g
100.0
Sample 2 29
102.3
Sample 3 59
104.8
Sample 410g
107.5
Which is the independent variable in this experiment?
o
A
Amount of salt added
B
Volume of water
С
Boiling temperature
D
Time required for water to boil
Time Remaining: 58 minutes

did anyone actually do this? like if anyone has submitted this i rly need .

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

answer7,570,82356 cubic centimeters;

(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