Imagine you push a book across an incredibly slippery surface. it slides right across because there is no fiction. 'ext, you push the same book across a rougher surface that exerts fiction.
Now the question:
Will the velocity of the book change as it moves across the surface with no fiction? Explain your answer
Another question:
Will the velocity of the book change as it moves across the surface WITH friction? Explain your answer.
Answers: 2
Chemistry, 22.06.2019 14:30, Dreynolds1667
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 23.06.2019 04:31, diamondscott9297
Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.
Answers: 1
Chemistry, 23.06.2019 11:30, kayabwaller4589
A) equal lines b) parallel lines c) perpendicular lines d) none of the above
Answers: 1
Imagine you push a book across an incredibly slippery surface. it slides right across because there...
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