The reaction below is an example of which type of reaction? 2KBrO3(s) = 2KBr(s) +3O2(g)
A. combustion reaction
B. decomposition reaction
C. synthesis reaction
D. double replacement reaction
E. single replacement reaction

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Which sound characteristic is not affected by the relative motion of an object

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s