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?

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas