2 years ago

Toeboards are usually ___ inches high and used on landings and balconies.

Engineering

1 answer:

Ksju [112]2 years ago

6 0

Answer:4 inches

Explanation:

Google told me

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Which of the following does a finding of no significant impact (FONSI) negate the need for?

garik1379 [7]

4 environmental accessment

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2 years ago

What Advantage does a voltmeter have over a noncontact voltage indicator when testing for voltage

galina1969 [7]

Answer:

Obviously you shouldn't rely just on the meter for your safety. You'd disconnect wall fuses or kill main switches before you start, using the meter just gives you some extra protection: with the meter you might notice for example that you've disconnected the wrong fuse and the unit is still live.

Explanation:

Hope it helps! :)

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2 years ago

Determine the work done by an engine shaft rotating at 2500 rpm delivering an output torque of 4.5 N.m over a period of 30 secon

balu736 [363]

Answer:

work done= 2.12 kJ

Explanation:

Given

N=2500 rpm

T=4.5 N.m

Period ,t= 30 s

$torque =\frac{power}{2\pi N}$

$power=2\pi N\times T$

P= $2\times \pi \times2500 \times 4.5$

P=70,685W

P=70.685 KW

power= $\frac{work done}{time}$

work done = power * time

= 70.685*30=2120.55J

= 2.12 kJ

7 0

3 years ago

Whenever you are around construction sites, you should ?

AlexFokin [52]

Here are 8 construction site safety tips:

Use caution when climbing on and off equipment.

Stay away from operating machinery.

Use caution around fall hazards.

Use the proper ladder height.

Keep an updated first aid kit.

Never use damaged equipment.

Never unplug a tool by the cord.

Be aware of surroundings at all times.

4 0

2 years ago

A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at 2308C by rejectin

lord [1]

Answer:

hello your question is incomplete attached below is the missing part and also attached is the solution

answer: a) 0.4801

b) 5.398 kw

c) 2.14

d) 12.72

Explanation:

The quality of the refrigerant at the evaporator inlet

h4 = hf4 + x4(hfx4)

Refrigeration load

Ql = m(h1-h4)

COP of the refrigerator

Ql / m(h2-h1) - Qm

Theoretical maximum refrigeration load

( Ql )max = COPr.rev * [m(h2-h1) - Qin]

5 0

2 years ago