In order to measure motion, one needs to observe? a. an object’s position at different times. b. an object’s position one time. c. an object’s size and direction.

Determine the maximum r-value of the polar equation r =3+3 cos 0

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47