A brick moves across a rough surface at constant velocity. Which of the following are forces that should be included in a free body diagram? (select all that apply) gravity friction applied force force of motion

The blood pressure in the human body is greater at the feet than at the brain

What is a substance with a ph of 13

How many times does lightning strike the empire state building

What are two examples of astronomical cycle

A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.630 for red light of wavelength 690 nm. If a beam containing these two colors is incident at an angle of 30.

A 15,000-watt radio station transmits at 1700 kHz. Determine the number of joules transmitted per second. A). 15 J/s B). 1700 Js C). 1,700,000 J/s D). 15,000 J/s

How might temperature near ocean compare with those in land in winter? In summer

What is not the purpose of peer review in science? to validate conclusions to conduct secret research to check the accuracy of data to obtain feedback from other scientists

What is an example of 'Centre of Gravity'?

The Mass number of an element is the? A. number of protons plus electrons B. number of protons only C. number of protons plus neutrons