Answer:
b. The horizontal component of the normal force acts toward the center of the circle.
Explanation:
When a car on a banked turn move with just the right speed so that the frictional force is zero, a component of the normal force -which is always perpendicular to the surface- acts as the centripetal force on the car. This is because the normal force now has a horizontal component, and this component supplies the centripetal force.
Answer:
Explanation:
Discussion
The top picture should be obvious. The rope is tied at one end. The person holding it provides energy in the form of vibrations moving up and down the way the diagram is shown. The wave can also be created by the rope moving sideways.
The bottom picture is much harder. T energy is provided by the forefinger. It has to move. If you just stick your finger in the water, all that will happen is that you will move some water (very little in the scheme of things.
So the energy is provided by a moving forefinger.
Answer:
Explanation:
The correct formula for the potential energy between two atoms in a particular molecule is:
Where 
is the distance.
According to the definitions of potential energy and work, as well as the Work-Energy Theorem and the Principle of Energy Conservation. The relation between that and related force is:
The function is derived in terms of distance:
Then, it is needed to find at least of x so that F(x) equals to 0.
![x=\sqrt[4]{\frac{84}{104} }](https://tex.z-dn.net/?f=x%3D%5Csqrt%5B4%5D%7B%5Cfrac%7B84%7D%7B104%7D%20%7D)
Answer:
The apparent weight is the weight of the body minus the weight of the liquid displaced. The body will float only when both the weights are same. In this case, the given body of weight W is floating and hence the apparent weight is zero.
Answer:
A = 62.5 g
using half life formulas, plug in missing variables.
