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svlad2 [7]
4 years ago
13

Metal object is earthed by connecting it to ......

Physics
1 answer:
gayaneshka [121]4 years ago
6 0

Answer:

ii) Insulating materials that gain electrons when rubbed become negatively charged. c) An electric current is a flow of charge. d) An isolated metal object that is initially uncharged will gain charge if it is brought into contact with a charged object. e) A metal object is earthed by connecting it to the ground.

Explanation:

hope this helps you :)

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Two trains move towards each other on a straight track/railroad. The left train has a constant speed of 29ms, the right train ha
laiz [17]

Answer:

The left train travels 2378 m until it reaches the meeting point.

Explanation:

The equation for the position of the trains is the following:

x = x0 + v · t

Where:

x = position at time t

x0 = initial position

v = velocity

t = time

If we place the origin of the frame of reference at the initial position of the left train, the right train will be at an initial position of 4744. 6 m relative to the left train. The velocity of the right train will be negative because it will be heading towards the origin.

At the meeting point, the position of both trains is the same:

x left train = x right train

x0₁ + v₁  ·t = x0₂ + v₂ · t

0m + 29 m/s · t = 4744.6 m - 29 m/s · t

58 m/s · t = 4744.6 m

t = 4744.6 m / 58 /s

t = 82 s

The position of the left train at that time will be:

x = x0 + v · t

x = 0 m + 29 m/s · 82 s

x = 2378 m

The left train travels 2378 m until it reaches the meeting point.

7 0
3 years ago
Dan's plant will require two shifts of skilled workers, seven days a week. As he does his research, he will pay particular atten
givi [52]
D - performance measures. 

If Dan is starting his plant, he will want to see if his new workers are performing the way he wants them to perform in order to meet the requirements for the amount of product he would like to produce on a weekly basis. This can be only done if he will pay special attention to different performance measures. 
4 0
3 years ago
Read 2 more answers
Compared to a soft sound, a loud sound at the same pitch....(check all true statements)
Sladkaya [172]

Answer:

One might think of a plucked guitar string - the sound would depend on the original amplitude of the disturbance -

Speed and velocity would still be the same

(b) is correct because the energy transfer depends on the original energy applied.

3 0
2 years ago
1. The arctic tern flies from the Arctic to the Antarctic and back every year, a total distance of 22,000 miles! In late summer,
NikAS [45]

Answer:

The average velocity that these birds travel is 122.22 miles per day  to the south.

Explanation:

Speed ​​is the physical quantity that expresses the variation in position of an object and as a function of time. In other words, speed is a physical quantity that expresses the relationship between the space traveled by an object, the time used for it and its direction.

Speed ​​is expressed mathematically as the quotient between distance and time:

v=\frac{d}{t}

where "v" is the speed of the mobile, "d" is the distance traveled by the mobile, and "t" is the time taken by the mobile to carry out the movement.

In this case:

  • d= 11,000 miles
  • t=3 months= 90 days ( considering that in 1 month there are 30 days)

Replacing:

velocity=\frac{11,000 miles}{90 days}

velocity = 122.22 \frac{miles}{day}

<u><em>The average velocity that these birds travel is 122.22 miles per day  to the south.</em></u>

8 0
3 years ago
A balloon is at a height of 81m and is ascending upwards with a velocity of 12m/s. A body of 2kg weight is dropped from it. If g
kap26 [50]
I know you are Indian by your question, HC Verma class 9 or 11 !!

if you got any problem, comment !!

7 0
4 years ago
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