Answer:
68.8 N
Explanation:
From the question given above, the following data were obtained:
Mass (m) of box = 18 Kg
Coefficient of friction (μ) = 0.39
Force of friction (F) =?
Next, we shall determine the normal force of the box. This is illustrated below:
Mass (m) of object = 18 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Normal force (N) =?
N = mg
N = 18 × 9.8
N = 176.4 N
Finally, we shall determine the force of friction experienced by the object. This is illustrated below:
Coefficient of friction (μ) = 0.39
Normal force (N) = 176.4 N
Force of friction (F) =?
F = μN
F = 0.39 × 176.4
F = 68.796 ≈ 68.8 N
Thus, the box experience a frictional force of 68.8 N.
Answer with Explanation:
We are given that
a.We have to find the total dose
Total dose=
Using the formula then, we get
b.We have to find the total dose equivalent
Total dose equivalent=H=
Using the formula
H=3.1mSv
Groups of atoms that line up to makes something magnetic
Answer:
97.9 Newtons
Explanation:
It take 4.45 newtons to lift 1 pound, so 4.45 * 22 = 97.9
