if by arc you mean the "Period" of the pendulum then yes, it does: with each revolution the period of the pendulum (the time taken to swing back and forth once) does decrease.
A swinging pendulum has potential energy at each end of it's travel (when it stops momentarily) This energy is converted to kinetic energy as it swings down and back to potential energy as it swings up the other way.
Sound wave's transmit energy and not matter because sound travels from particle to particle transferring only energy. That is why when sound travels only the energy travels and the particles just collide with each other but stay in their positions.
gravity The force on each other is the same (action and reaction) The skier and the earth accelerate toward each other according to: acceleration = force / mass. But because the earth is so massive , (compared to the skier) its rate of acceleration is immeasurably small, as is the distance it travels. > This is only concerned with the vertical component of the skiers motion.
one degree each.
Time and distance traveled are directly proportional only if the velocity of the object in question is constant.
The amplitude of a pendulum is the distance between its equilibrium point and the farthest point that it reaches during each oscillation.
The time period of a pendulum will increase when taken to the top of a mountain. This is because the acceleration due to gravity decreases at higher altitudes, resulting in a longer time for the pendulum to complete each oscillation.
Decrease
In that case, each second the distance travelled will be less than the second before that.
2.
Perhaps if either:The length of the pendulum is infiniteThe pendulum is in perfect zero gravity and has no momentumBut in each of those cases, does it really qualify as a pendulum?
Each time you double your distance from the center of the earth, the accelerationof gravity, and its force on you (your weight) decrease by 75%.
In zero gravity, the mass of an object does not effect the distance an object travels at all unless there is a constent force acting upon it. However, if it is in contact with another object, and gravity is what keeps the 2 or more objects touching each other, then mass will effect the distance it travels because of friction.
it's frequency is 2 hertz
A pendulum could be almost anything, even a soap on a string. They're not picky, so I can't really say I know how each part works.
Gravity, but the pendulum does not keep going. Each swing is a tiny bit shorter than the previous one.
If the distance between the objects increases, the force of gravity will decrease.