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sattari [20]
3 years ago
8

Perpendicular lines are two distinct coplanar lines that intersect to form what type of angle?

Mathematics
2 answers:
11111nata11111 [884]3 years ago
3 0
<span>Perpendicular lines are two distinct coplanar lines that intersect to form what type of angle right angle </span>
liberstina [14]3 years ago
3 0

Answer:

Right Angle

Step-by-step explanation:

Perpendicular line means that the line will divide something equally meaning both sides will be 90⁰ (right angle).

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An aluminum rod 0.500 m in length and with a cross-sectional area of 2.20 cm2 is inserted into a thermally insulated vessel cont
netineya [11]

Answer:

a). V_{He}   = 14.6208 litres : b). = 0.29844 Litres/sec

Step-by-step explanation:

a).

Step 1.

Volume when one half of rod is inserted = (50/2)*(2.2) = 55cm³

Step 2.

As we know that,

V_{He} = (ρV_{c}IΔT)_{Al} / (ρL_{v})H_{c}                     where H_{c} = 290 - 4.2 = 285.8K

                                                        sepecififc heat of aluminum = 0.215 cal/g

                                                                                      density = 2.7 g/cm3

      = (2.7)*(55)*(0.215)*(285.8) / (0.125)*(20900)*(1/4186)

V_{He}   = 14.6208 litres

b).

Step 1.

As we know that

  P = kA(dT/dx) = 31*2.2*[(290-4.2)/25]

                         = 779.6624 W

Step 2.

Now, approximate boil rate of helium is:

P/ρL_{v}= [(779.6624)*(10^3g/kg)] / [(0.125)*(20900)]

         = 0.29844 Litres/sec

6 0
3 years ago
It was recently estimated that homes without children outnumber homes with children by about 8 to 7. If there are 3870 homes in
damaskus [11]

Answer: x = 2,340 homes without children

There are 2,340 homes without children.

Step-by-step explanation:

'x' represent the number of homes without children

'y' represent the number of homes with children

x : y = 9 : 7

Since the total number of homes is 4160 means x + y = 4160.

From x + y = 4160 follows y = 4160 - x.

Plug y = 4160 - x into x : y = 9 : 7

x : (4160 - x) = 9 : 7

4 0
3 years ago
I need help please ​
Wewaii [24]

Answer:

X= -3

Step-by-step explanation:

8 0
3 years ago
Which statement about light is FALSE? a Light travels about 300,000 km/second. b Light travels in the form of a wave. c Light fr
Travka [436]

Answer: I believe it’s c

Step-by-step explanation:

7 0
3 years ago
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What is<br><img src="https://tex.z-dn.net/?f=1895%20%5Ctimes%20906" id="TexFormula1" title="1895 \times 906" alt="1895 \times 90
netineya [11]

Answer:

1895 x 906=

1,716,870

4 0
3 years ago
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