First, the acceleration is solved by dividing the velocity by time.
acceleration = 4 m/s / (1x10^-3s) = 4000 m/s²
Then, we solve for the force by multiplying the mass by acceleration.
F = m x a
Substituting the known values,
F = (12.3 mg)(4000 m/s²) = (12.3 x 10^-6 kg)(4000 m/s²)
F = 0.0492 N
Thus, the force of the froghopper is approximately equal to 0.0492 N.
Answer:
The right sphere is negatively charged, the left sphere is charged positively.
Explanation:
When a negatively charged rod is held above the top of left sphere, the rod will attract positive charges and repel negative charges. As the sphere are initially touching each other so positive charges from the both spheres will moves toward the rod. When we separate the spheres positive charges from right sphere have already moved toward the rod i.e. left sphere, creating a deficiency of positive charges in the right sphere and excessiveness of positive charges in left sphere , hence the right sphere will remain negatively charged and left sphere will remain positively charged.
Speed is rate of an object moving all together, it has a scalar quantity.
Velocity is <span>which a object is moving in a specific direction, it has </span>a vector quantity.