Answer;
- Nuclear fusion
Explanation;
-Hydrogen bombs and stars both produce energy with the nuclear fusion. On other side, the Sun and other stars make heat and light by nuclear reactions.
-The first stage of a hydrogen bomb involves a fission explosion which in turn leads to a nuclear fusion. The extreme heat and pressure from the initial atomic blast force together deuterium and tritium (two light gases made of hydrogen). When they are forced together, some of the hydrogen atoms fuse to one another, creating helium.
-This process of fusion releases even more energy per unit of mass than fission does, and the energy released from the fusion reaction also feeds back into the fission reaction, increasing its output.
Answer:
The position of the image from the camera lens is approximately 121.1 mm
Explanation:
The given parameters of the lens are;
The specification of the camera lens = 120 mm
Therefore, the focal length of the camera lens, f = 120 mm = 0.12 m
The distance of the object from the camera, = 13 m
The lens equation for finding the position of the image is given as follows;
Where;
= The position of the image from the camera lens
Therefore, by plugging in the known values, we have;
The position of the image from the camera lens, = 0.1211 m = 121.1 mm
You would need to connect a potential difference across a resistor in parallel
The momentum of the car is equal to:
We need to find the new speed v at which the new system (bycicle+rider) have same momentum p of the car. The mass M of the new system is M=120 kg. Using the value of momentum we found previously and the same formula for the momentum, we find
So, the speed of the bycicle must be 84 m/s.
Explanation:
Let us assume that the final resistance after stretching is . Since, the volume of rod does not change and the initial and final volume will be the same as follows.
V =
It is given that, .
Therefore,
We know that relation between resistance and area is as follows.
R =
=
= 9
= 9R
Thus, we can conclude that the resistance of the stretched wire is 9R.