Which are different ways ultrasound technology may be used? check all that apply.

detecting kidney stones
locating misplaced electrical equipment
cleaning dirty surgical tools
detecting throat cancer
visualizing a fetus in the womb

Detecting kidney stones and cancer, visualizing fetus in the womb

Explanation:

Ultrasound technology can be used in detecting kidney stones and cancer throat and also visualizing a fetus in the womb. The use of ultrasound for detecting kidney stones started around 1961. Ultrasound has also been used in detecting various types of cancer including throat cancer. The use of ultrasound in knowing the gender of fetus in hospitals has been used for a long time. However, it's not used for cleaning dirty surgical tools.  therefore, choice A, D and E apply.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west