Physics
the frictional force (which must be overcome) is __ m * g * 0.200
Physic
(m v^2) / r = m g sinΘ v^2 = 6.00 m * g * sin(9.0º)
Physics
[2.00 * sin(37.0º)] + [1.785 * sin(153.5º)]
Math
look at 1000 items M1 produces 300 with 18 defects M2 produces 300 with 15 defects M3 produces 400 with 16 defects the probability that a defect is from M1: 18 / (18 + 15 + 16)
statistics
80 ≤ [(88 + 83 + 86 + 72 + 3x) / 7] ≤ 89
Physics
the centripetal force (gravity) is now 4 times as large f = m v^2 / r multiplying f by 4 (and keeping m and r constant) means that v is doubled doubling the velocity would halve the period
Calculus-math
using slope-intercept, the given slope is -1/2 the slope of the tangent to the function is the 1st derivative f(x) = 1 / sqrt(x) = x^(-1/2) f'(x) = (-1/2) x^(-3/2) substitute to find x and then y at the point of tangency use point-slope to write the equation of the new par...
math
16! / (7! * 1! * 8!)
Physics
the average velocity during deceleration is __ (76 km/h + 0) / 2 the time is the distance divided by the average velocity you will have to convert km/h to m/s to find the answer in s
Physics
the average velocity (Va) during acceleration is __ 3000 m / (3.8 * 60) sec the final velocity (Vf) is related to the initial velocity (Vi) by: Vf = (2 * Va) - Vi
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