Answer:
In particle physics, a lepton is an elementary particle of half-integer spin (spin 1⁄2) that does not undergo strong interactions.[1] Two main classes of leptons exist: charged leptons (also known as the electron-like leptons or muons), and neutral leptons (better known as neutrinos). Charged leptons can combine with other particles to form various composite particles such as atoms and positronium, while neutrinos rarely interact with anything, and are consequently rarely observed. The best known of all leptons is the electron.
(a) how many joules of energy are the equivalent of one
jelly doughnut?
We are already given the energy which is equal to 695
kcal. We know that in 1 kcal, there is 4184 Joules, therefore:
Energy = 695 kcal * (4184 J / 1 kcal)
Energy = 2,907,880 J
(b) how many stairs must the woman climb to perform an
amount of mechanical work equivalent to the food energy in one jelly doughnut? assume
the height of a single stair is 15 cm. stairs
We can solve this by using the Potential Energy formula:
PE = m g h
2,907,880 J = 44 kg * 9.8 m/s^2 * h
h = 6,743.7 m
So the number of stairs is:
stairs = 6,743.7 m / 0.15 m
stairs = 44,958
(c) if the human body is only 28% efficient in converting
chemical energy to mechanical energy, how many stairs must the woman climb to
work off her breakfast?
So the number of stairs will be:
stairs = 44,958 / 0.28
stairs = 160,564
This is how far I got:
put equation 3. into 1. together with h = 5:
4.
when I double m₁ the ratio becomes:
5.
when I put these to ratios back into equation nr 1 and nr2, I find the ratio:
and new v₁ = 2.95
I'm not sure this is correct.
Answer:
Explanation:
Displacement involves direction and distance. In this case, the deer has walked a distance of 17 + 12 = 29m but because of the South-then-North direction, the net displacement is only 17-12 = 5m.
So the answer is A) 5.0 m, 29.0 m
First of all due to heavy rainfall , people are facing different current and electric circuit issues ..Heavy ranfall and thunder storm is the main reason of the issue.. So , The conclusion are given below -"
•We can make the roadside wires underground .
•We can also follow basic safety measures .
•We can avoid using devices having wifes with the plugin .
•We can use non-Elextirc devices more .