Which statements about observations and inferences are correct? Select all that apply. A. Inferences can never be proven.
B. Inferences are always based on observations.
C. Something that is commonly known is always an observation.
D. Information obtained using a tool is not an observation.
E. Inferences may be true or false.
F. Observations are always made using the five senses.
G. Scientists use observations to explain how things work.

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90