(a) What is the strength of the weak nuclear force relative to the strong nuclear force?
(b) What is the strength of the weak nuclear force relative to the electromagnetic force?
Since the weak nuclear force acts at only very short distances, such as inside nuclei, where the strong and electromagnetic forces also act, it might seem surprising that we have any knowledge of it at all. We have such knowledge because the weak nuclear force is responsible for beta decay, a type of nuclear decay not explained by other forces.
(a) The strength of weak nuclear force relative to strong nuclear force is .
(b) The strength of weak nuclear force relative to electromagnetic force is .
Nuclear forces play a vital role in the structure of matter, and they act over a short-range. These forces help in determining the stability of nuclei.
The relative strength of the weak nuclear force is of the order of whereas the relative strength of the strong nuclear force is 1.
Determine the ratio of the weak nuclear force to the strong nuclear force as:
Here is the weak nuclear force, and is the strong nuclear force.
Hence, the strength of weak nuclear force relative to strong nuclear force is .
Electromagnetic forces are long-range forces that act over large distances. These forces can be attractive or repulsive in nature.
The relative strength of the electromagnetic force is .
Determine the ratio of the weak nuclear force to the electromagnetic force as:
Here is the electromagnetic force.
Hence, the strength of weak nuclear force relative to electromagnetic force is .
A nurse pushes a cart by exerting a force on the handle at a downward angle 35.0º below the horizontal. The loaded cart has a mass of 28.0 kg, and the force of friction is 60.0 N.
(a) Draw a free-body diagram for the system of interest.
(b) What force must the nurse exert to move at a constant velocity?
Near the end of a marathon race, the first two runners are separated by a distance of 45 m. The front runner has a velocity of 3.50 m/s, and the second a velocity of 4.20 m/s. (a) what is the velocity of the second runner relative to the first? (b) If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity? (c) What distance ahead will the winner be when she crosses the finish line?
94% of StudySmarter users get better grades.Sign up for free