Aturntable spins up from rest with an angular acceleration of 1.0 rad/s2. a rubber eraser of mass 20 g with coefficientof static friction 1.0 is at a distance of 0.1 m from the center of the turntable, when it begins to spin. how long does ittake for the eraser to begin to slide off the turntable? note that the tangential acceleration of the eraser is very small.

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

What is the rate of change in a objects position?

Mga halaman/punong ornamental na di namumulaklak