You are riding your bike and steadily pulling your little brother Plus
in his red wagon while someone standing still watches you and
your little brother go by. He has a ball, and he throws the ball forward at a
velocity of 2.5 m/s relative to his body while you are pulling the wagon at a
velocity of 4.5 m/s. At what speed does the person who is standing nearby see
the ball go by?

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays