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Andrej [43]
3 years ago
5

I don’t understand the 4th one please help someone.

Physics
1 answer:
Gnoma [55]3 years ago
7 0

Answer:

From point A to point D is 20

The final displacement is 32

Explanation:

AB=8

BC=8

CD=4

DE=8

EF=4

DE= 8 because the object moves 4 meters in each direction.

AB+BC+CD=20(A to D)

AB+BC+CD+DE+EF=32(Final displacement)

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what would the mass be of an object that was moving at a velocity of 35 m/s and has a kinetic energy of 500j be?
bearhunter [10]

Answer:

0.816 kg

Explanation:

E_k=\frac{1}{2}mv^{2}\\

so m=\frac{2E_k}{v^2}=\frac{2\times500}{35^2}=0.816 kg

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2 years ago
Write the energy conversion when climbing a ladder​
Volgvan
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3 years ago
Astronomical observatories have been available since ancient times, and many cultures set aside special sites for astronomical o
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Answer:

The answer is "telescopes".

Explanation:

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Stars combine Hydrogen to make Helium during nuclear fusion. Living things are made of heavier elements like Carbon, Oxygen, Iro
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8 0
3 years ago
A truck contains both hydraulic brakes (reliability 0.96) and mechanical brakes (reliability 0.99). What is the probability of s
Oksana_A [137]

Answer:

i) 0.9504

ii) 0.0452

Explanation:

Given data: reliability of hydraulic brakes= 0.96

reliability of mechanical brakes = 0.99

So the probability of stopping the truck = 0.96×0.99= 0.9504

At low speed

case: A works and B does not

= 0.96×(1-0.99) = 0.0096

case2 : B works and A does not

= 0.99×(1-0.96) = 0.0396

Therefore, probality of stopping = 0.0096+0.0396 = 0.0492

8 0
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