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1 answer:
<u>Answer:</u>
- 1) Acute triangle
- 2) Obtuse triangle
- 3) Isosceles triangle
<u>Step-by-step explanation:</u>
- 1) This is called an <em><u>acute triangle</u></em><em>.</em> An acute triangle has all 3 angles less than 90°.
- 2) This is called an <em><u>obtuse triangle</u></em>. An obtuse triangle is a triangle that has 1 angle more than 90°.
- 3) This is called an <em><u>isosceles triangle</u></em>. In this type of triangle, the two angles that are on the base are the same.
Hoped this helped.
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The graph is shown in the picture attached.
A) In order to calculate <span>how long it takes the pendulum to swing one direction, then the other, and then return to its resting position, you need to look at the graph and see where the function returns to zero after going once up and once down. This time is called period (T), which</span> is defined as the time taken to perform one complete oscillation.
In our case, T = 5 s (see the second picture attached for reference).
B) In order to find the pendulum's maximum displacement, you need to look at the graph and see how high and low on the y-axis the function goes. This displacement is called amplitude (A), which is defined as the maximum displacement from the resting position in either direction.
In our case, A = 20 cm (see the second picture attached for reference).<span>
</span>C) Since the period of the pendulum is 5 seconds and it swings constantly, the fraction of a cycle completed in 1 second is calculated by simply dividing
p = 1 / 5 = 0.20
Therefore, in 1 second the pendulum completes 20% of its cycle.
D) During<span> the time period from x = 5 to x = 5.625, we can see from the graph that the pendulum has just started its second oscillation, therefore it starts from the resting position and it moves towards the right (positive values of y)decreasing its velocity.
E)</span> The equation of the graph is a sinusoidal function, therefore it will have an equation like
where:
A = amplitude
T = period
b and c = shifting constants
In order to find b and c, we recall that the graph starts at (0,0) and therefore it is not shifted either horizontally or vertically, and therefore we can infer that b = c = 0.
Substituting the values, we find:
<span>
</span>
A) In order to calculate <span>how long it takes the pendulum to swing one direction, then the other, and then return to its resting position, you need to look at the graph and see where the function returns to zero after going once up and once down. This time is called period (T), which</span> is defined as the time taken to perform one complete oscillation.
In our case, T = 5 s (see the second picture attached for reference).
B) In order to find the pendulum's maximum displacement, you need to look at the graph and see how high and low on the y-axis the function goes. This displacement is called amplitude (A), which is defined as the maximum displacement from the resting position in either direction.
In our case, A = 20 cm (see the second picture attached for reference).<span>
</span>C) Since the period of the pendulum is 5 seconds and it swings constantly, the fraction of a cycle completed in 1 second is calculated by simply dividing
p = 1 / 5 = 0.20
Therefore, in 1 second the pendulum completes 20% of its cycle.
D) During<span> the time period from x = 5 to x = 5.625, we can see from the graph that the pendulum has just started its second oscillation, therefore it starts from the resting position and it moves towards the right (positive values of y)decreasing its velocity.
E)</span> The equation of the graph is a sinusoidal function, therefore it will have an equation like
where:
A = amplitude
T = period
b and c = shifting constants
In order to find b and c, we recall that the graph starts at (0,0) and therefore it is not shifted either horizontally or vertically, and therefore we can infer that b = c = 0.
Substituting the values, we find:
<span>