Answer:
1.171
Explanation:
if n₁sinΘ₁=n₂sinΘ₂, then n₂=n₁sinΘ₁ / sinΘ₂;
Answer:
that is false it is still radio active.
Answer:
1) Newton's first law of motion states an object will remain at rest or in uniform will be in uniform motion in a straight line unless a force acts on it
2) Newton's second law states the acceleration of an object is directly proportional to the applied force acting on an object and inversely proportional to the mass of the object
Explanation:
1) With Newton's first law, we are able arrange things within a space and schedule meetings in time knowing that they will remain in place unless an external force changes their positions
2) An example of Newton's second law of motion is that small objects such as a ball are easily accelerated and can be given appreciable acceleration for flight by single, one time contact (such as kicking the ball) while larger objects such as a rock require sustained force application to change their location.
Answer:
D. The object accelerates
Explanation:
Answer:
b. Gravity is the weaker force; it is related to mass.
Explanation:
Gravity is the force of gravitational attraction of earth on all objects near its surface
This force on all objects depends on the mass of the objects
This force is given by
so here it is a weak force as it depends on mass and acceleration due to gravity while strong nuclear force is independent of mass and it only depends on the distance between the nuclei.
So as we will change the distance between the nuclei the force between them will change
So here correct answer is
b. Gravity is the weaker force; it is related to mass.
