Find the electrostatic force between two protons that are 2.0 m apart. The elementary charge of a proton is 1.602 x 10^-19C.

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Acar travels 40m in 8 seconds find the car speed

Select the correct answer. what does the process of natural selection involve?

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?