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Lady bird [3.3K]
2 years ago
7

He more gentle the

Physics
1 answer:
Alex787 [66]2 years ago
4 0
I don’t really know the answer cause I need more information about the question
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19.A 20 kg sign is pulled by a horizontal force such that the single rope (originally vertical) holding the sign makes an angle
Andreyy89

Answer:

A)T=209.94N

B) F=75.24N

Explanation:

Using the free body diagram and according to Newton's first law, we have:

\sum F_y=Tcos(21^\circ)-mg=0(1)\\\sum F_x=F-Tsin(21^\circ)=0(2)

A) Solving (1) for T:

T=\frac{mg}{cos(21^\circ)}\\T=\frac{20kg(9.8\frac{m}{s^2})}{cos(21^\circ)}\\T=209.94N

B) Solving (2) for F:

F=Tsin(21^\circ)\\F=(209.94N)sin(21^\circ)\\F=75.24N

8 0
3 years ago
Cross-Text Discussion​
marysya [2.9K]

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idk

Explanation:

AND WAZZZZZZZZZZZZZUP

8 0
3 years ago
Which of the following is NOT one of the three keys to keeping water clean? Reduction of pollutants Effective cleanup of oil and
Irina18 [472]
"Reduction of Pollutants"

6 0
2 years ago
Read 2 more answers
Steve want to catch up to Cami, a girl he likes. If he is jogging at 8 m/s and she is walking at 1 m/s. How long will it take hi
Aleks04 [339]

Answer:

<u><em>1) if they are moving away from each other it will take 1.43 secs</em></u>

<u><em>2) if they are moving towards each other then it will take 1.11 secs</em></u>

Explanation:

Distance between them is 10 m

Speed  ( if they are moving towards each other)= distance/time

time = 10/8+1

time = distance / speed= 10/9=  1.11 secs

if they are moving away from each other than it will take

time = 10/8-1= 10/7= 1.43 secs

5 0
2 years ago
Which of the following statements is FALSE?
kobusy [5.1K]
The false statement would be :
C. constructive interference occurs when the crest of one wave overlaps the trough of another and their individual effects are reduced or cancelled out.

Constructive interference should be when the crest of one wave overlaps another and their individual effects are add up, becoming a single wave of increased amplitude<span />
6 0
3 years ago
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