3 years ago

Anytime scaffolds are assembled or __________, a competent person must oversee the operation.

Engineering

2 answers:

egoroff_w [7]3 years ago

4 0

D. made because made is a synonym for assembled

ololo11 [35]3 years ago

3 0

B because of health and safety regulations

You might be interested in

The position of a particle is given by s = 0.27t

Natali [406]

Sorry bro people do this22.2 pls

8 0

2 years ago

Consider a 400 mm × 400 mm window in an aircraft. For a temperature difference of 90°C from the inner to the outer surface of th

True [87]

Um I think the answer for this is 10l

5 0

3 years ago

A 2-lane highway is to be constructed across a 6-ft diameter metal culvert which is oriented perpendicular to the highway center

kvv77 [185]

Answer:

Dude just like forget the highway and drive on the interstate bruh

Explanation:

5 0

4 years ago

Identify three questions a patient might ask of the nuclear medicine technologist performing a nuclear medicine exam.

bogdanovich [222]

Answer:

How long is my nuclear medicine exam?

How long will the radioactivity stay in my system?

What are the risks?

Explanation:

3 0

2 years ago

A 2-cm-diameter vertical water jet is injected upward by a nozzle at a speed of 15 m/s. Determine the maximum weight of a flat p

Ede4ka [16]

Answer:58.28 N

Explanation:

Given data

$dia. of nozzle \left ( d\right )=2 cm$

$initial velocity\left ( u\right )=15 m/s$

$height\left ( h\right )=2m$

Now velocity of jet at height of 2m

$v^2-u^2=2gh$

$v^2=15^2-2\left ( 9.81\right )\left ( 2\right )$

$v=\sqrt{185.76}=13.62 m/s$

$Now\ forces\ on\ plate\ are\ weight\left ( Downward\right ) and jet\ force\left ( upward\right )$

equating them

W= $\left ( \rho Av\right )v$

W= $10^{3}\times \frac{\pi}{4}\left ( 0.02\right )^2\times 13.62^2$

W=58.28 N

7 0

4 years ago