Aforce of 99 n causes a box to accelerate at a rate of 11 m/s2. what is the mass of the box? (ignore frictional effects.)

1,100 kg
1,100 n
9.0 kg
9.0 n

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Consider the story you just read. all but one of the choices below indicate that something is living.

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