More convenient
More commonly used
Answer:
O Column 1 should be titled "Time," and Column 2 shouldbe titled "Velocity,"
O Column 1 should be titled "Velocity," and Column 2 should be titled "Time."
O Column 1 should be titled "Time," and Column 2 should be titled "Acceleration."
O Column 1 should be titled "Acceleration," and Column 2 should be titled "Time."
60.3° from due south and 5.89 m/s For this problem, first calculate a translation that will put John's destination directly on the origin and apply that translation to Mary's destination. Then the vector from the origin to Mary's new destination will be the relative vector of Mary as compared to John. So John is traveling due south at 6.7 m/s. After 1 second, he will be at coordinates (0,-6.7). The translation will be (0,6.7) Mary is traveling 28° West of due south. So her location after 1 second will be (-sin(28)*10.9, -cos(28)*10.9) = (-5.117240034, -9.624128762) After translating that coordinate up by 6.7, you get (-5.117240034, -2.924128762) The tangent of the angle will be 2.924128762/5.117240034 = 0.57142693 The arc tangent is atan(0.57142693) = 29.74481039° Subtract that value from 90 since you want the complement of the angle which is now 60.25518961° So Mary is traveling 60.3° relative to due south as seen from John's point of view. The magnitude of her relative speed is sqrt(-5.117240034^2 + -2.924128762^2) = 5.893783 m/s Rounding the results to 3 significant digits results in 60.3° and 5.89 m/s
Answer:
option A
Explanation:
given,
diameter of circle = 10 ft
refractive index of the water = n = 1.33
let the inclined surface of the cone makes an angle θ with vertical line then
we know,
from this θ = 48.75°
substitute this in eq ( 1 ) we have
h = 4.38
h = 4.4 (approx.)
Hence, the correct answer is option A
