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finlep [7]
3 years ago
12

9N 8N What is the total Net Force?

Physics
1 answer:
Setler [38]3 years ago
3 0

Answer:

The total net force is 17N in total.

Hope this helps :)

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Less impact???

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When was World War 3 Started?
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Korean War: 25 June 1950 – 27 July 1953

Many then believed that the conflict was likely to soon escalate into a full-scale war between the three countries, the US, the USSR, and China. CBS war correspondent Bill Downs wrote in 1951 that, "To my mind, the answer is: Yes, Korea is the beginning of World War III.

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An object with a weight of 20 kg will move _______ an object with a weight of 20 g if the same amount of force is placed on the
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Two flat glass plates are separated at one end by a wire of diameter 0.20 mm; at the other end they touch. Thus, the air gap bet
stepan [7]

Answer:

668 bright fringes

Explanation:

t = Thickness = 0.2 mm

\lambda = Wavelength = 600 nm

m = Number of fringes

We have the fringe width relation

2t=\left(m+\frac{1}{2}\right)\lambda\\\Rightarrow m=\dfrac{2t}{\lambda}-\dfrac{1}{2}\\\Rightarrow m=\dfrac{2\times 0.2\times 10^{-3}}{600\times 10^{-9}}-\dfrac{1}{2}\\\Rightarrow m=666.166\approx 667

So, total number of fringes will be including m = 0 is 1+667=668

8 0
4 years ago
A uniform ladder of length l rests against a smooth, vertical wall. If the coefficient of static friction is 0.50, and the ladde
Ronch [10]

Answer:

X = 5.44 m

Explanation:

First we can calculate the normal force acting from the floor to the ladder.

W₁+W₂ = N  

W1 is the weigh of the ladder

W2 is the weigh of the  person

So we have:

m1g+m2g=N  

N=755.37 N

The friction force is:

F_{force}=\mu N=0.5\cdot 755.37=377.68 N

Now let's define the conservation of torque about the foot of the ladder:

\tau_{ledder}+\tau_{person=\tau_{reaction}}

m_{1}\cdot g\cdot X \cdot cos(53)+m_{2}\cdot g\cdot 3.75 \cdot cos(53)=F_{force}7.5sin(53)

Solving this equation for X, we have:

X = \frac{377.68\cdot 7.5\cdot sin(53)-21\cdot 9.81\cdot 3.75 \cdot cos(53)}{56\cdot 9.81\cdot cos(53)}

Finally, X = 5.44 m

Hope it helps!

3 0
3 years ago
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