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3 years ago

Heyi can u answer this matey??

Physics

2 answers:

Rudik [331]3 years ago

7 0

It is true my dude.

Agata [3.3K]3 years ago

3 0

Answer:

True

Explanation

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A room has a volume of 160 m3. An air-conditioning system is to replace the air in this room every 21.3 minutes, using ducts tha

serious [3.7K]

Answer:

A. 0.204203928 m

b. 0.1443939822

Explanation:

Givens:

Volume (V) = 160 m^3

velocity 1 (v1) = 3.00 m/s

velocity 2 (v2) = 6.00 m/s

Time (t) = 21.3 minutes = 1278 seconds

Side length = ?

V = A*v*t

A = s^2

V = s^2*v*t

s= $\sqrt{\frac{V}{v*t} }$

s = $\sqrt{\frac{V}{v*t} }$ = $\sqrt{\frac{160}{3.00*1278} }$ = 0.204203928 m

s = $\sqrt{\frac{V}{v*t} }$ = $\sqrt{\frac{160}{6.00*1278} }$ = 0.1443939822 m

I hope this helped!! Have a good day.

7 0

3 years ago

While eating a peanut butter and jelly sandwich, peanut butter drips on Diana’s shirt. She tries to remove the peanut butter fro

Valentin [98]

Answer:

The water and peanut butter have different chemical properties.

(Lipids are not soluble in water)

8 0

3 years ago

Read 2 more answers

A lightbulb marked "75 W [at] 120 V" is screwed into a socket at one end of a long extension cord, in which each of the two cond

Vedmedyk [2.9K]

Answer:

Part c)

$P = 73.8 Watt$

Explanation:

Light bulb is marked as 75 W and 120 Volts

so it means that when we apply 120 volts across the bulb then it will consume the total power of 75 W

now when we connected the bulb with the help of conducting wires with some resistance across them then few of its voltage will fall across the wires

due to which the voltage across bulb is less than 120 Volts

So the power given by the bulb is less than 75 W

Part c)

Resistance of the bulb is given as

$R = \frac{V^2}{P}$

$R = \frac{120^2}{75}$

$R = 192 ohm$

now total resistance of the circuit

$R_{net} = 192 + 0.8 + 0.8$

now current in the circuit

$i = \frac{120}{193.6}$

$i = 0.62 A$

so actual power delivered to the bulb is given as

$P = i^2 R$

$P = 0.62^2 \times 192$

$P = 73.8 Watt$

5 0

4 years ago

What if there is no subscript for a element?

Scorpion4ik [409]

Well no elements then no energy for our body we would probably be dead -__-

7 0

3 years ago

Can someone help please please asap

Ronch [10]

Waves and wind because wind can blow the rock or sand away and waves can wash is away

3 0

4 years ago