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.
Answer:
Mass of the second block is 1.4 kg
Explanation:
When a weight (mg) is displaced from its equilibrium position in a spring mass system, a restoring force (kx) will act on the weight.
so, mg = -kx
where, k is a constant
Mass of block () = 0.70 kg
For one spring mass system,
For the two spring mass system,
divide equation 2 by 1
on further rearranging,
So, mass of the second block is 1.4 kg.
That would be known as the rifling. Helps to make the gun shoot accurately.
To determine the distance that you would travel by.
Simply convert 15 minutes to seconds which would be 900 seconds.
Then solve for distance, which would be
D = r • t
D = 12 m/s • 900 s
D =10 800 m.
This is the distance that you had ran for.