Answer:
The particles in a medium only vibrate about their equilibrium positions while the waves that they mediate travel through them, transferring vibration to more distant particles in the medium.
In transverse waves, like the waves on a string, the particles of the medium vibrate perpendicular to the direction of the waves. And in longitudinal waves, like sound waves, the particles vibrate in the direction of the wave's travel. What is important to stress about waves is that they do not transfer matter from one place to another, but only energy. The effect is analogous to that observed in a Newton's cradle: the <em>ball manages to transfer energy to the other end without actually moving there</em>.
Answer:
T = 4200N
Explanation:
When the submersible craft is at rest, the tension in the cable is 6000N.
With this information you can calculate the weight of the craft by summing the forces (the summation of the force is zero because the craft is at rest):
When the craft is going down with a constant speed, there is a drag force of 1800N. Then, by using the second Newton law you have:
(1)
Fd: drag force
The summation of the forces is zero because the craft moves with constant velocity, that is, there is no acceleration.
You calculate the new tension on the cable by solving the equation (1) for T:
hence, the tension is 4200N
Answer:
A. It has mostly kinetic energy
Explanation:
Kinetic energy refers to movement. Potential energy refers to height. In this case, the big drop just got over. So, when the coaster is at the bottom, it has more kinetic than potential energy . Potential energy is still present but kinetic is more at the bottom.
Answer:
Newtons First Law (The Law of Inertia)- If an object is at rest it will stay at rest until a net force acts on it. If an object is in motion it will stay in motion until a net force acts on it.
Newtons Second Law (F=ma)- Force equals the mass of an object times it's acceleration.
Newton's Third Law- For every action there is an equal and opposite reaction.
hope this helps!
Force. Force is measured by newtons, probably because he came up with the equations to calculate force.
Hope this helps!
