Answer:
1.70108e-13 , this is the answer hope it helps
Answer:
F = 51.3°
Explanation:
The component of weight parallel to the inclined plane must be responsible for the rolling back motion of the car. Hence, the force required to be applied by the child must also be equal to that component of weight:

where,
W = Weight of Wagon = 150 N
θ = Angle of Inclinition = 20°
Therefore,

<u>F = 51.3°</u>
B. Density. I hope this helps!
Answer:
18 kg/cm³
Explanation:Density=mass/ volume=450/25=18kg/cm³
Answer:
0.5
Explanation:
calculating the total resistance for the both the parallel and the series resistors then later using the ohm's law formulae V=IR to calculate current.