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Cerrena [4.2K]
3 years ago
11

100 points Im so bored lol

Engineering
2 answers:
OlgaM077 [116]3 years ago
5 0

Answer:

lol same

Explanation:

Dima020 [189]3 years ago
4 0

Answer:

im so bored too girl

Explanation:

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15
AveGali [126]

Answer:

b

Explanation:

4 0
3 years ago
An inventor claims to have developed a refrigerator that at steady state requires a net power input of 1.1 horsepower to remove
Lynna [10]

Answer:

The inventor's claim is false in the sense that no thermal machine can violate the first thermodynamic law.

Explanation:

The inventor's claim could not be possible as no thermal machine can transfer more heat than the input work consumed. If we expose the thermal efficiency:

n=Q out / W in

Where Q and W both must be in the same power unit, so we will convert the remove heat from BTU/hr to hp:

12000 BTU/hr = 4.72 hp

Therefore by comparing, we notice that the removing heat of 4.75 hp is large than the delivered work of 1.11 hp. By evaluating the efficiency:

[tex]n=4.75 hp / 1.1 hp  = 4.3 > 1[/tex]

6 0
3 years ago
4. If a hot wire is shorted to ground, what will usually happen?
barxatty [35]

Answer:

nothing will happen

Explanation:

except for whatever that wire feeds will lose power

help support our cause by spreading this flag all over brainly

5 0
2 years ago
Why we use the lagrange Equation? ​
PIT_PIT [208]

Answer:

It is used for solving optimization problems in which,given some functional,one seeks the function minimizing or minimizing it.

Explanation:

Please i need a Brainliest.

3 0
3 years ago
A car moves along a circular track of radius 250 ft such that its seed for a short period of time 0<_ t <_ 4s, is v = 3(t
beks73 [17]

Answer: a) -5 ft/s²

B) 4.5 ft

Explanation: Radius= 250ft

Velocity V = 3(t-t²)ft/s

A). When t= 3 s, the acceleration is

dv/dt = 1-2t

dv/dt = 1- 2(3)

= 1-6

= -5 ft/s²

B. How far it traveled in 3 sec

Distance= 3t²/2 -t³/3 ft

Substituting 3

Distance = 27/2 - 9

= 13.5 - 9

= 4.5 ft

7 0
3 years ago
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