Aperture is measured in F-stops, in which the f-stops is the amount of light allowed to pass through the aperture, which simply put means that the smaller the aperture, the higher the f-stops. What it does is reduce the amount of light that reaches the film, so the higher the f-stops, the less light reaches the film.
Answer:
Electrical Energy and Sound Energy
Explanation:
Answer:
The answer is 10Nm
Explanation: I ended up just messing around with the numbers, I multiplied 5 and 2 got 10 as my answer and it was right.
Explanation:
Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter.
let the friction coefficient on dry ice and wet ice is different and given as
= on dry ice
= on wet ice
now by friction force formula we can say

so the deceleration due to friction force is given as

now the deceleration due to friction force on both surface is given as


now the time to stop the two blocks can be calculated by kinematics



also for other block on wet ice we can say similarly

now the ratio of two time on two surfaces is given as

so this is the ratio of time on two surfaces