You are driving at a reasonable constant velocity in a van with a windshield tilted 120o relative tothe horizontal. as you pass under a utility worker fixing a power line, the worker’s wallet fallsonto the windshield. determine the acceleration needed by the van so that the wallet stays inplace if frictional forces are negligible.

Alice added sodium chloride to water and stirred the water for several minutes. alice is most likely trying to demonstrate that ionic compounds a. are hard. b. can dissolve. c. are clear. d. can melt.

Which object is most likely represented by a dot?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.