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galben [10]
2 years ago
9

Which of the following is an example of simple harmonic motion?

Mathematics
2 answers:
Stella [2.4K]2 years ago
6 0

Answer with explanation:

A motion is said to be Simple Harmonic motion if it is to and fro motion that is  a type of periodic motion where motion of an object repeats after certain interval of time.

Option A:→  A police car shining a spotlight into buildings as it drives by is not a periodic motion because when a car is moving towards a spotlight does not repeat in a small duration.

Option B:→ Calculation of Angle of Elevation for a Building is not Simple Harmonic as it is not Periodic.

Option C:→ The motion of a piston is simple harmonic because when engine is in motion the piston moves up and down that is a Periodic motion.This motion is also called reciprocating motion as it is not completely periodic which can be converted into circular motion with the help of an Instrument called Crankshaft.

Option D: →A ball bouncing on a sidewalk is Parabolic of different Latus rectums .It's distance from base that is maximum height attained by ball starts decreasing when friction comes into play and stops when Inertia stops acting on the ball.

Option C:→ The motion of a piston  is an example of simple harmonic motion.

Klio2033 [76]2 years ago
5 0

the answer would be C

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Answer:

A. The lines stay parallel

Step-by-step explanation:

Rigid transformations do not change angle or line relationships. When the parallel lines are rotated they stay parallel. Reflecting them will keep them parallel. If this were not true, then figured with parallel lines like rectangles and squares would change shape when reflected.

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3 years ago
Two cars leave the same parking lot, with one heading south and the other heading east. After several minutes, the southbound ca
ELEN [110]

Answer:

25

Step-by-step explanation:

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3 years ago
What is m∠2?<br> What is m∠1?
Greeley [361]

Answer:

<2 = 75

<1 = 105

Step-by-step explanation:

<2 and 75 are alternate interior angles and since the lines are parallel, they are equal

<2 = 75

<2 + <1 = 180    since the angles form a line

75+ <1 = 180

Subtract 75 from each side

<1 = 180-75

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6 0
3 years ago
Read 2 more answers
. In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one stu
Sergeeva-Olga [200]

Answer: B. H_0:p_1=p_2

H_a:p_1>p_2

Step-by-step explanation:

Let p_1 be the proportion of all U.S. adults that smoked in 1995. Let p_2 denote the proportion of all U.S. adults that smoked in 2000.

Objective for the study : Whether the proportion of U.S. adults that smoke declined during the 5-year period between the samples.

i.e. p_1>p_2

Alternative hypothesis(H_a) is the statement containing population  parameter that shows there is significant difference between the groups being tested.

⇒ H_a:p_1>p_2

Null hypothesis(H_0) is the statement containing population parameter that shows there is no significant difference between the groups being tested.

⇒ H_0:p_1=p_2

Hence, The hypotheses to test in this problem are

H_0:p_1=p_2

H_a:p_1>p_2

Hence, the correct answer is B. H_0:p_1=p_2

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8 0
3 years ago
What function is vertically stretched by a factor of 3 and translated 4 units right from the parent function
Neporo4naja [7]
<span>The <u>correct answer</u> is:

B) 3log</span>₅<span>(x-4).

Explanation<span>:

To stretch a function by a factor of 3, we multiply the function by 3. This eliminates A and D.

To translate a function 4 units right, we add -4 to the variable before anything else is applied to it; this eliminates C.

In choice B, the log function is multiplied by 3, which gives us our vertical stretch; and the x is subtracted by 4 before anything else is applied to it, so it is translated 4 units right.</span></span>
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3 years ago
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