What’s the question though
Answer:
Answered
Explanation:
a) Two balls are at a distance of L/2 from the axis of rotation and one block at the center. ( center of rod).
therefore,
b) two balls at a distance L/4 at the from the axis and 1 ball at a distance 3L/4 from the from the axis.
=
B. It reflects light rays outward.
A convex mirror looks like this ⊂. So when light rays hit the outward curves, it bends the light rays outwards, and backwards, and it would appear to be coming from its center called the focus.
To solve this problem we will apply the concepts related to the gravitational force expressed in Newton's statements as the product between the constant of gravity, the two masses to study and the distance to the square that separates them. Mathematically this can be described as
Here,
G = Gravitational constant
m = Mass 1
M =Mass 2
d = Distance between them
Replacing with our values,
Therefore the force of gravity is
Answer:
- The x-component of the velocity of the third particle is
- The y-component of the velocity of the third particle is
- The increase in kinetic energy is
Explanation:
We can take conservation of linear momentum to find the velocities:
The initial momentum of the nucleus will be:
as is at rest.
After the decay, the first particle has a momentum
the second one has a momentum
By conservation of linear momentum we have:
for the third particle, we know that mass is conserved:
The velocity will be:
The kinetic energy is given by
And, as the initial kinetic energy is zero, this must be the increase in energy.