Answer:
The answer is already given... it's 31.25 cm
Answer:
B
Explanation:
Any object will be acted on by a force, when that object is not moving (or has an acceleration equal to zero), then the forces acting on that object are considered to be balanced.
A: Is balanced, because a bridge has multiple structures in place that prevent it from being unbalanced, and falling over.
B: Is unbalanced, because during a roller coaster ride, the acceleration changes constantly. Hence, during its first drop, the roller coaster is being acted on by unbalanced forces.
C: Is balanced, because although there are two forces acting in opposite directions (the pulling from both sides), the overall <u>net force</u> is equal to zero.
D: Is balanced, because the car is not moving, and hence it will have zero acceleration.
Answer:
0.47m3
Explanation:
Volume = Mass / Density
In this case:
Mass - 1280 kg
Density - 2700kg/m3
1280 / 2700 = 0.4740741m3
When this is rounded off ( 2 d.p ):
0.47 m3
HOPE THIS HELPED