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ollegr [7]
3 years ago
7

These are linear openings that form in materials to relieve stress

Mathematics
1 answer:
defon3 years ago
6 0

Answer:

Not available

Step-by-step explanation:

No file attached

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Combining like terms with negative coefficients
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-3z - z = -3z - 1z = -4z
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2,167 divided by 6 equals
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361.16 repeating I used my calculator
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3 years ago
A 20.3 kg person climbs up a uniform ladder with negligible mass. The upper end of the ladder rests on a frictionless wall. The
VMariaS [17]

Answer:

Q = arctan(7.1739) = 82.06

Step-by-step explanation:

Given:

- The mass of the person m = 20.3 kg

- The distance traveled up the ladder s = 1.1 m

- The gravitational constant g = 9.8 m/s^2

- The coefficient of static friction u_s = 0.23

- Total length of the ladder

Find:

The minimum angle θ, that would allow the person to climb without ladder slipping

Solution:

- Taking moments about point of ladder and wall contact A to be zero:

                   -F_n,b*cos(Q)*4 - F_f*sin(Q)*4+ m*g*cos(Q)*2.6 = 0

- Taking Sum of vertical forces to be zero:

                    F_n,b - m*g = 0

                    F_n,b = m*g

- The frictional force F_f is given by:

                   F_f = u_s*F_n,b = u_s*m*g

- Plug the values back in:

                  - m*g*cos(Q)*4 + u_s*m*g*sin(Q)*4 - m*g*cos(Q)*2.6 = 0

Simplify:

                  4*cos(Q) + 2.6*cos(Q) = u_s*4*sin(Q)

                        6.6*cos(Q) = 4*u_s*sin(Q)

                               tan(Q) = 6.6 / 4*u_s

- Plug in the values:

                               tan(Q) = 6.6 / 4*0.23

                                    Q = arctan(7.1739) = 82.06

                   

                     

4 0
4 years ago
Cone volume of 288in<br> and height 7 in find base of radius
stepan [7]
The answer would be:

6 0
3 years ago
Which equation results from applying the secant and tangent segment theorem to this figure? x(x 2) = (x 4) x(x 4) = (x 2) x(x 4)
fomenos

The equation which is results from applying the secant and tangent segment theorem to the provided figure is,

x(2x +4) = (x +2)^2

<h3>What is secant and tangent segment theorem?</h3>

The secant-tangent theorem tells the relation of the line segment made by a tangent and the secant lines with the connected circle.

According to this theorem, if the tangent and secant segments are drawn from an exterior point, then the square of this tangent segment is equal to the product of the secant segment and the line segment from that exterior point.

The image of the given problem is attached below. In the attached image, the tangent is given as,

T=x+2

The secant is shown in the image has the value,

S=x+x+4\\S=2x+4

Now according to the secant tangent theorem,

x(2x +4) = (x +2)^2

Hence, the equation which is results from applying the secant and tangent segment theorem to the provided figure is,

x(2x +4) = (x +2)^2

Learn more about the secant-tangent segment theorem here;

brainly.com/question/10732273

7 0
3 years ago
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