C. 1.0 mol/kg sodium phosphide (Na3P)<span>
This is because it will produce 4 ions, and thus has the highest molalitiy. (more particles in solution lowers the freezing point)
</span><span>remember if you ever need anything and you dont want to waste points you can just post it on my pfp or message me the question</span>
Answer:
I think deposition of C is the oldest deposit
Answer:
The approximate spring constant is 
Explanation:
From the question we are told that
The mass of the person is 
The dip of the car is 
Generally according to hooks law

here the force F is the weight of the person which is mathematically represented as

=> 
=> 
=> 
=> 
Answer:
a) 3673469.39 seconds
b) 6.61×10¹⁴ m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity = 0.12×3×10⁸ m/s
s = Displacement
a = Acceleration due to gravity = 9.8 m/s²
Equation of motion

Time taken to reach 12% of light speed is 3673469.39 seconds

The distance it would have to travel is 6.61×10¹⁴ m