Answer:
Sagittarius A
At its center, surrounded by 200-400 billion stars and undetectable to the human eye and by direct measurements, lies a supermassive black hole called Sagittarius A*, or Sgr A* for short. The Milky Way has the shape of a spiral and rotates around its center, with long curling arms surrounding a slightly bulging disk.
Explanation:
The pendulum movement is a famous situation manifesting the force of tension by the rope and the force of gravity coming into play. There are already derived equations explaining the behavior of the pendulum movement.
Period = t = 2π√(L/g)
Since, we don't have exact values for the parameters, let's just find the ratio to provide comparison. Let's find the ratio of the pendulum on the moon (t,moon) to the period of the pendulum on earth (t,earth).
t,moon/t,earth = 2π√(L/g/6) ÷ 2π√(L/g) = √6
Therefore, the period of the pendulum on the moon is the square root of 6 times that of in the earth.
Answer and Explanation:
1. Evaluate the function x(t) at t=0.5
2. The period of motion T can be calculated as:
Where:
So:
3. The angular frequency can be expressed as:
Solving for k:
4. Find the derivate of x(t):
Now, the sine function reach its maximum value at π/2 so:
Solving for t:
Evaluating v(t) for 0.6603981634:
So the maximum speed of the block is:
In the negative direction of x-axis
5. The force is given by:
The cosine function reach its maximum value at 2π so:
Solving for t:
Evaluating x(t) for 3.016592654:
Therefore the the maximum force on the block is:
Answer:
The answer is the third option, the minimum force required to overcome static friction and move an object.
Explanation:
The first choice is talking about an object moving, and anything moving relates to <em>kinetic </em>friction, not static friction. I don't think it's the fourth option because, even with the net force being 0, the object could still be moving (again relating to kinetic friction).
Show the graph. I need to see the graph first in order to get the awnser