Physics, 07.11.2019 18:31, reghanhoward3

# Mitchell records the amount of time a toy car takes to travel down a ramp...

Mitchell records the amount of time a toy car takes to travel down a ramp one time for each of four slope angles. his lab partner, sarah, suggests that he run the same set of trials two more times. what arguments should sarah use to support her suggestion? check all that apply. more trials will prove the results. more trials will reduce mistakes. more trials will guarantee correct results. more trials will increase confidence in the results. more trials will identify other possible solutions.

Answers: 2

Physics, 21.06.2019 22:20, lunamoon1

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

Answers: 2

Physics, 21.06.2019 23:30, carterkanye468

Acommon procedure for measuring the velocity of an airstream involves the insertion of an electrically heated wire (called a krwzluh dqhprphwhu) into the airflow, with the axis of the wire oriented perpendicular to the flow direction. the electrical energy dissipated in the wire is assumed to be transferred to the air by forced convection. hence, for a prescribed electrical power, the temperature of the wire depends on the convection coefficient, which, in turn, depends on the velocity of the air. consider a wire of length / 20 mm and diameter ' 0.5 mm, for which a calibration of the form 9 6.25 105 k2 has been determined. the velocity 9 and the convection coefficient k have units of m/s and w/m2 k, respectively. in an application involving air at a temperature of 7 25c, the surface temperature of the anemometer is maintained at 7v 75c with a voltage drop of 5 v and an electric current of 0.1 a. what is the velocity of the air?

Answers: 2

Physics, 22.06.2019 00:20, glogaming16

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

Answers: 2

Mitchell records the amount of time a toy car takes to travel down a ramp one time for each of four...

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