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postnew [5]
3 years ago
12

The compound LiBr is an example of

Physics
1 answer:
docker41 [41]3 years ago
8 0
C. ionic because it's a metal and non-metal
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A man supports himself and the uniform horizontal beam pulling the rope with a force T.The weights of men and the beam are 883 N
artcher [175]

Answer:

T=502.5N

Ax=171.8N

Explanation:

The computation of the tension T in the rope and the forces exerted by the pin at A is shown below:

vertical forces sum = Ay + Tsin20 + T - 245 - 883 = 0

Now  

horizontal forces sum = Ax - Tcos70

Now Moment about B

-Ay × 4.8 + 245 × 2.4 + 883 × 1.8=0

Ay=453.6N

Now substitute in sum of vertical forces T=502.5N

Ax=171.8N

3 0
2 years ago
The Atomic number tells us the number of ____ in an atom.
yawa3891 [41]

Answer:

Protons

Explanation:

5 0
3 years ago
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A life preserver is thrown from an helicopter straight down to a person in distress. The initial velocity of the life preserver
Leno4ka [110]

Answer:29.627 m

Explanation:

Given

Initial velocity of life preserver(u) is 1.6 m/s

it takes 2.3 s to reach the water

using equation of motion

v=u+at

v=1.6+9.81\times 2.3

v=24.163 m/s

Let s be the height of life preserver

v^2-u^2=2gs

24.163^2-1.6^2=2\times 9.81\times s

s=\frac{581.29}{2\times 9.81}

s=29.627 m

6 0
3 years ago
Lightning is an example of what kind of electricity
ki77a [65]

the answer would be DISCHARGE

I ʝυʂƚ ƚσσƙ ƚԋҽ TEST

7 0
3 years ago
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If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
dybincka [34]
A and B are equal vectors
7 0
3 years ago
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