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Shkiper50 [21]
2 years ago
8

A ground-fault circuit interrupter shuts down a circuit if it?

Physics
1 answer:
alukav5142 [94]2 years ago
6 0
C: if it senses unequal currents
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A 1.1-cm-diameter pipe widens to 2.34 cm, then narrows to 4.9 mm. Liquid flows through the first segment at a speed of 3.57 m/s.
ratelena [41]

Answer:

v2=0.79 m/s

Explanation:

equation of continuity: V1A1=V2A2

A=(pi)r^2

A1=(pi)(0.55cm)^2

A2=(pi)(1.17cm)^2

convert cm2->m2

A1= 0.95cm2=

A2= 4.3cm2=

(3.57 m/s)(0.000095 m^2)=(x m/s)(0.00043 m^2)

v2=0.79 m/s

hope this helped

6 0
3 years ago
Many gates at railway crossings are operated manually. A typical gate consists of a rod usually made of iron, consisting heavy w
alekssr [168]

Answer:

  Making the crossing gate balanced makes the mechanical drive simpler and less expensive to operate.

Explanation:

See the attachment for a picture of what we're talking about.

The gate must be rotated up and down. That rotation is easier if the mass being rotated is balanced about the center of rotation. Less torque (and work) is required to create the desired motion.

7 0
3 years ago
A 500.0-g chunk of an unknown metal, which has been in boiling water for several minutes, is quickly dropped into an insulating
mixas84 [53]

Answer:

electeicity is caused by the movement of. from one atom to the next

6 0
3 years ago
Which equation below would you use to determine the number of neutrons in a given nucleus when you are given the atomic number (
Mademuasel [1]

Answer:

A-Z

Explanation:

A proton has an estimated weight of 1.

6 0
4 years ago
Read 2 more answers
How much is done when moving a box 25 m with a net force of 30 N?
mariarad [96]

Answer:

W = 750 [J]

Explanation:

The question should be related to work, work in physics is defined as the product of force by distance. In this way, we can use the following equation.

W=F*d

where:

F = force = 30 [N]

d = distance = 25 [m]

W = work [J]

Now replacing:

W=30*25\\W=750 [J]

4 0
3 years ago
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