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2 years ago

________ is the amount of time it takes a person’s eyes to regain focus after seeing glare.

Engineering

2 answers:

e-lub [12.9K]2 years ago

8 0

Answer: it would take 3 to 5 seconds to regain focus

Explanation:

irakobra [83]2 years ago

6 0

Answer:

Glare and recovery time is the total time taken by person to recover from glare effects

Explanation:

Glare and recovery time is the total time taken by person to recover from glare effects

When driving during night time on highway, the reflection of vehicles lamps and brightly illuminated signs or any structures have momentarily affect all vehicles. The eyes of most individuals heal within three seconds to five seconds from this glare. Seven seconds or longer recovery periods are not unusual.

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The collar A, having a mass of 0.75 kg is attached to a spring having a stiffness of k = 200 N/m . When rod BC rotates about the

gladu [14]

Answer:

Speed=1.633 m/s

Force= 20 N

Explanation:

Ideally, $v^{2}=\frac {ks^{2}}{m}$ hence $v=s\sqrt {\frac {k}{m}}$ where v is the speed of collar, m is the mass of collar, k is spring constant and s is the displacement.

In this case, s=100-0=100mm=0.1m since 1 m is equivalent to 1000mm

k is given as 200 N/m and mass is 0.75 Kg

Substituting the given values

$v=0.1 m\sqrt \frac {200 N/m}{0.75 Kg}=1.632993162 m/s\approx 1.633 m/s$

Therefore, the speed is 1.633 m/s

The sum of vertical forces is given by mg where g is acceleration due to gravity and it's value taken as $9.81 m/s^{2}$

Therefore, $F_y=0.75\times 9.81=7.3575 N\approx 7.36 N$

The sum of forces in normal direction is given by $Ma_n=Ks$ therefore

$Ma_n=200*0.1=20 N$

Therefore, normal force on the rod is 20 N

5 0

2 years ago

List one advantage and one disadvantage of the use of the commutator?

Mariulka [41]

Answer and Explanation:

Commutator are used in DC machine commutator is mainly used for the reversing the direction of the current .It is connected to the armature of the DC generator or motor

ADVANTAGE OF COMMUTATOR The main advantage of the commutator in DC motor is to keep keep the direction of the toque always in the same direction by changing the current direction

DISADVANTAGE OF COMMUTATOR : The main disadvantage is due to the friction between the commutator and brushes there is a friction loss.

3 0

2 years ago

Three-dimensional measuring references all of these EXCEPT:

cricket20 [7]

Except the Table of Contents

4 0

2 years ago

The __________ developed the national electric code, the national building code, and the national fire prevention code.

Dahasolnce [82]

Main Answer:

The Bureau of Indian standards developed the national electric code, the national building code, and the national fire prevention code.

Sub heading:

explain BIS?

Explanation:

1.BIS-bureau of indian standard is the national standard body of india.

2.BIS is responbility for the harmonious deve;opment of the activities of standardization.marking .

Reference link:

https://brainly.com

Hashtag:

#SPJ4

5 0

1 year ago

Solve the questions in the picture

STatiana [176]

15x -/c/ fb is the answer

6 0

2 years ago