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3 years ago

. You are a Geographic Information System (GIS)

Mathematics

1 answer:

Elena-2011 [213]3 years ago

5 0

Answer:

l will print A2 inches cause each side of the scale of the map is 1inch

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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

A weather forecaster predicts that the temperature in antarctica will decrease 8°f each hour for the next 6 hours. write and sol

Alex17521 [72]

Let us suppose it will take t hours for the temperature to drop at least 36°F.

We have been given that temperature in Antarctica will decrease 8°F each hour for the next 6 hours.

And we have to find the time to drop the temperature to at least 36°F. At least means greater than equal to.

Therefore, we have the below inequality

$8t\geq 36$

Now, we solve the inequality.

Divide both sides by 8, we get

$t\geq \frac{36}{8}\\\\t\geq 4.5\text{ hours}$

Hence, it will take atleast 4.5 hours to drop the temperature to 36°F.

6 0

3 years ago

Read 2 more answers

Find the quotient 130 ÷ –13. A. –12 B. –9 C. –10 D. –5

WITCHER [35]

Answer:

C)-10

Step-by-step explanation:

negative divided by negative is positive.

-130 / -13 =10

3 0

4 years ago

Read 2 more answers

Point w is reflected across x = 1 (3,-2)

dalvyx [7]

Answer:

are we supposed to find w ?

Step-by-step explanation:

i dk what to do, do you have a pic to go along?

3 0

3 years ago

F(0)=1(0+3)squared + 1 Find f of zero. What does this point represent?

zzz [600]

Answer:

Step-by-step explanation:

F(0) = 3^2+1=9+1=10

6 0

3 years ago