An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sheet.

Question

An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sheet.

Pls show full working and formular.

Answer 1

Please avoid duplicate posts. You will not get your questions looked at any sooner that way.

Answer 2

To find the time taken by the electron to pass through the sheet, we can use the equation:

time = distance / speed

First, let's convert the given measurements to a consistent unit. We'll convert the thickness of the sheet from centimeters to meters:

Thickness of the sheet = 2.1 x 10^4 cm
= 2.1 x 10^4 * 10^-2 m [1 cm = 10^-2 m]
= 2.1 x 10^2 m

Now we can calculate the distance the electron travels through the sheet:

Distance = Thickness of the sheet = 2.1 x 10^2 m

Next, we can substitute the values into the equation:

Time = Distance / Speed
= 2.1 x 10^2 m / (2 x 10^6 m/s)
= (2.1 x 10^2) / (2 x 10^6) seconds
= 1.05 x 10^-4 seconds

Therefore, the time taken by the electron to pass through the sheet is 1.05 x 10^-4 seconds.