A little girl holds an ice cream cone with an upward force of 2 N as she walks 5 m across a room. How much work does she do on the ice cream cone?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Hydrogen and helium are both members of?