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mylen [45]
2 years ago
10

Kelli has a mass of 42-kg, and she is sitting on a playground swing that hangs .4m above the ground. Her mom pulls the swing bac

k and releases it when the seat is 1 meter above the ground. How fast is Kelli moving when the swing passes through its lowest point?
Physics
1 answer:
finlep [7]2 years ago
6 0

Answer:

3.4 m/s

Explanation:

may i be marked brainliest?

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( TRUE false )
Alex73 [517]

Answer:

number 6 is wrong

the answer is pesticides

2.combines are used for harvesting or threshing.so number <em>2</em><em> </em><em>is</em><em> </em><em>w</em><em>rong</em>

at least you tried

Explanation:

there is no such thing as <em>weedicides</em>

8 0
3 years ago
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What is the Momentum of a ball that has a mass of 0.5 kg and a velocity of 20 m/s?
Zarrin [17]
P (momentum) = mass x velocity
p = .5 x 20
p = 10
8 0
3 years ago
Describe how visible light is used with solar photovoltaic panels to produce electricity
padilas [110]
Solar panels convert the sun's light into usable solar energy using N-type and P-type semiconductor material. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity.
6 0
2 years ago
According to Coulomb's law, the force of attraction or repulsion between two charges is
Maru [420]

Answer:

B is the answer

Explanation:

thank you I hope it helps you

6 0
2 years ago
Read 2 more answers
The missile s engine exerts a 260-kN force F.
alexdok [17]

Answer:

a)F=(208 i+156 j) kN

b)F+W=219 kN

Explanation:

Solution:

To determine the components of F

F=(260 kN).(\frac{4}{\sqrt{4^{2}+3^{2}}}i+\frac{3}{\sqrt{4^{2}+3^{2}}}j)

 =(208 i+156 j) kN

F=(208 i+156 j) kN

b)weight W expressed in component and add into the    

   Force F.

W=-(8800 kg).(9.81 m/s^2)j

F+W=(208 i+[156-86.3]j) kN

F+W=\sqrt{(208kN)^{2}+(-69.7kN)^{2}  }

         =219 kN

F+W=219 kN

6 0
3 years ago
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