Complete question is;
Which of the following object would take you the greatest amount of force to accelerate.
A) a soccer ball with a mass of 0.5 kg
B) a refrigerator with a mass of 200 kg, C) a bike with a mass of 25 kg
D) a car with a mass of 5,000 kg,
Answer:
D) a car with a mass of 5,000 kg
Explanation:
Formula for force is;
F = ma
Where;
F is force
m is mass
a is acceleration
Now, Force is directly proportional to the acceleration and mass.
Thus, the higher the mass, the greater the force.
Thus, the object that will require the most force is the one that has the highest mass.
Looking at the options, the one with the highest mass is option D.
Answer:
The answer is 144g
Explanation:
This is because oxygen gas (O2) has a mass of 32g and you have 4.5 moles of O2, so you have to multiply 4.5 and 32.
0.8 is shown on the graph temperature
Innovated Understanding Curious Logical
Answer is: Ksp for magnesium hydroxide is 1,1·10⁻¹¹.<span>
Chemical reaction: Mg(OH)</span>₂(s) → Mg²⁺(aq) + 2OH⁻(aq).
s(Mg(OH)₂) = 1,4·10⁻⁴ M.
s(Mg(OH)₂) = s(Mg²⁺).
s(OH⁻) = 2s(Mg(OH)₂).
Ksp = s(Mg²⁺) · (s(OH⁻))².
Ksp = 1,4·10⁻⁴ M · (2,8·10⁻⁴ M)².
Ksp = 1,1·10⁻¹¹.