well, tell maggie i said hello...and tell fred that he still owes me money from last weeks poker match.....and make sure flourence knows that everything is gonna be ok with his toe problems......thanks
Answer:
There are over 10 hazards or more at construction sites ,below are examples
Explanation:
1.Working at height.
2.Moving objects.
3.Slips, trips, and falls.
4.Noise.
5.Hand arm vibration syndrome.
6.Material and manual handling.
7.Collapsing trenches.
8.Asbestos.
9.Electricity.
10.Airborne fibres and materials.
Answer:
14.434 r.a.m.
Explanation:
- The atomic mass of an element is a weighted average of its isotopes in which the sum of the abundance of each isotope is equal to 1 or 100%.
∵ The atomic mass of N = ∑(atomic mass of each isotope)(its abundance)
∴ The atomic mass of N = (atomic mass of N-14)(abundance of N-14) + (atomic mass of N-16)(abundance of N-16)
atomic mass of N-14 = 14.0 r.a.m, abundance of N-14 = percent of N-14/100 = 78.3/100 = 0.783.
atomic mass of N-16 = 16.0 r.a.m, abundance of N-16 = percent of N-16/100 = 21.7/100 = 0.217.
∴ The atomic mass of N = (atomic mass of N-14)(abundance of N-14) + (atomic mass of N-16)(abundance of N-16) = (14.0 r.a.m)(0.783) + (16.0 r.a.m)(0.217) = 14.434 r.a.m.
Answer:
9m
Explanation:
Given parameters:
speed of caterpillar = 0.05m/s
time taken to move = 3min
Unknown:
distance covered by the caterpillar = ?
Solution:
Speed is defined as the rate of change of distance with time. It is a scalar quantity that does not measure direction but has magnitude;
Speed =
Distance = speed x time
We need to convert the given time to seconds;
1 min = 60s
3 min = 60 x 3 = 180s
Input the variables;
distance = 0.05m/s x 180s = 9m