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givi [52]
3 years ago
8

B. Complete the lists:

Physics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

Things you should do for your family

  • help your parents
  • treat them kindly
  • listen and obey them
  • appreciate them for anything they do for you
  • talk softly

things you shouldn't

  • backanswering them
  • Disobey
  • And anything that's harsh or make it parents sad
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a 90 kg architect is standing 2 meters from the center of a scaffold help up by a rope on both sides. the scaffold is 6m long an
Mademuasel [1]
We can solve the problem by requiring the equilibrium of the forces and the equilibrium of torques.

1) Equilibrium of forces:
T_1 - W_p - W_s + T_2 =0
where
W_p = (90kg)(9.81 m/s^2)=883 N is the weight of the person
W_s = (200kg)(9.81 m/s^2)=1962 N is the weight of the scaffold
Re-arranging, we can write the equation as
T_1 = 2845 N-T_2 (1)

2) Equilibrium of torques:
T_1 \cdot 3 m - W_p \cdot 2 m - T_2 \cdot 3m =0
where 3 m and 2 m are the distances of the forces from the center of mass of the scaffold.
Using W_p = 883 N and replacing T1 with (1), we find
2845 N \cdot 3 m - T_2 \cdot 3 m - 833 N \cdot 2 m - T_2 \cdot 3 m=0
from which we find
T_2 = 1128 N

And then, substituting T2 into (1), we find
T_1 = 1717 N
8 0
3 years ago
At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81 m/s2 . A watermelon has a weight of 54.0 N at the s
butalik [34]

Answer:

m=5.51Kg

Explanation:

The weight of an object on Earth is given by W=mg, so we can calculate its mass by doing m=W/g, which for our values is:

m=(54N)/(9.8m/s^2)=5.51Kg

<em>Nothing is being asked</em> about Io but if one wanted to know the weight <em>W'</em> of the watermelon there one just have to do:

W'=ma=(5.51Kg)(1.81m/s^2)=9.97N

4 0
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The main part of the nuclear power plant is the ____. Where nuclear ____ reactions take place.
emmasim [6.3K]
Turbine an unclean fission
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Crude oil coal and peat are examples of fossil fuels name another one<br><br>​
Nikolay [14]

Answer:

petroleum and Natural gas are fossil fuels

Explanation:

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Which type of climate has no winter
Scilla [17]
Humid tropical climates are climates that have no winters.
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