An electron in a television tube travels the 12 cm distance from the grid to the screen at an average speed of 7.00 107m/s. How long does the trip take?
d = V*t = 0.12 m
t = 0.12/V = 0.12/7*10^7=1.71*10^-5 s.
. If a car is already going 50 m/s, and it accelerates at 2 m/s/sec for 15 seconds, how fast will it be going?
To find the time it takes for the electron to travel the given distance, we can use the formula:
time = distance / speed
Given:
Distance = 12 cm = 0.12 m
Speed = 7.00 x 10^7 m/s
Plugging in the values:
time = 0.12 m / (7.00 x 10^7 m/s)
To simplify the calculation, we can express the speed in scientific notation:
time = 0.12 m / (7.00 x 10^7 m/s) = 1.714 x 10^-9 s
Therefore, the trip takes approximately 1.714 x 10^-9 seconds.