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posledela
3 years ago
15

What mark appears on frames of industrial safety glasses?

Engineering
1 answer:
zepelin [54]3 years ago
5 0
Z87-2 all safety glasses have it on front frame
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klio [65]

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3 years ago
A 60-cm-high, 40-cm-diameter cylindrical water tank is being transported on a level road. The highest acceleration anticipated i
dlinn [17]

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h_{max} = 51.8 cm

Explanation:

given data:

height of tank = 60cm

diameter of tank =40cm

accelration = 4 m/s2

suppose x- axis - direction of motion

z -axis - vertical direction

\theta = water surface angle with horizontal surface

a_x =accelration in x direction

a_z =accelration in z direction

slope in xz plane is

tan\theta = \frac{a_x}{g +a_z}

tan\theta = \frac{4}{9.81+0}

tan\theta =0.4077

the maximum height of water surface at mid of inclination is

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\Delta h  0.082 cm

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h_{max} = h_{tank} -\Delta h

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the height requird if no spill water is h_{max} = 51.8 cm

3 0
4 years ago
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