A block lies on a smooth inclined plane tilted at an angle of 35 o to the horizontal a) Draw the free body diagram for the block b) Determine the block’s acceleration as its slide down the inclined plane c) If the block started from rest 8.5 m up the incline from its base, determine the block’s speed when it reaches the bottom of the incline d) How long did it take the block to reach the bottom of the inclined plane?

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)