The motion of a piston of a car engine approximates simple harmonic motion. given that the stroke (twice the amplitude) is 0.1 m, the engine runs at 2800 r/min, and the piston starts at the middle of its stroke, find the equation for the displacement d as a function of t. sketch two cycles.

y=mx+b

step-by-step explanation:

m slope

b y-intercept

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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-9

step-by-step explanation:

56 44 2 4

step-by-step explanation: