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LenaWriter [7]
4 years ago
5

The conductors that carry the current to electrical devices and ? equipment are the heart of all electrical systems. There are a

ssociated ? whenever current flows through a conductor.
Physics
1 answer:
Aleksandr [31]4 years ago
7 0

Answer:

Utilization, effects

Explanation:

The conductors that carry the current to electrical devices and utilization equipment are the heart of all electrical systems. There are associated effects whenever current flows through a conductor.

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What is the loose covering of weathered rock particles and decaying organic matter overlying the bedrock of earths surface
erica [24]
THat would be humus. This answer apparently wasn't long enough so I'm just adding junk.
6 0
4 years ago
An 80-kg quarterback jumps straight up in the air right before throwing a 0.43-kg football horizontally at 15 m/s . How fast wil
Lilit [14]

Answer:

Explanation:

We shall apply law of conservation of momentum .

m₁ v₁ = m₂ v₂

m₁ = 80 kg

v₁ = ?

m₂ = .43 kg

v₂ = 15 m /s

80 v₁ = .43 x 15

v₁ =  .43 x 15  / 80

= .08 m /s

8 cm /s

option A is correct.

Law of conservation of momentum is applied only where no external force acts . Here during the period when ball was thrown , apart from internal force , external force like gravitational force was also acting but we still applied this law because the time duration of action of throw was very small

so we neglected the effect of external force . So it was just an approximation.

7 0
3 years ago
A car is 2.0 km west of a traffic light at t = 0 and 5.0 km east of the light at t = 6.0 min. Assume the origin of the coordinat
egoroff_w [7]

Answer:

(a) Position Vectors V₁= -2î km, V₂=5î km

(b) Displacement Δx=7 km

Explanation:

Given data

Distance=2 km west at t=0

Distance=5 km east at t=6 min

Positive x is the east direction

To find

(a)Car position vector at given times

(b)Displacement between 0 to 6.0 min

Solution

For Part (a) car position vector at given times

At t=0 the distance=2 km west so conclude that x₁=-2 because it is in negative side So vector V₁

V₁= -2î km

At t=6.0 the distance=5 km east so conclude that x₂=5 because it is in positive side So vector V₂

V₂=5î km

For (b) displacement between 0 to 6.0 min

According to following mathematical law we can conclude that

Δx=x₂-x₁

Δx=5-(-2)km

Δx=7 km

6 0
3 years ago
the gravitational force exerted on a baseball is 2.21 N down, a pitcher throws the ball horizontally with velocity 18.0 m/s by u
Ilia_Sergeevich [38]
To have a weight of 2.21N., the ball's mass is (2.21/9.8) = .226kg. 
<span>a) d = 1/2 (vt), = 1/2 (18 x .17), = 1.53m. </span>
<span>b) Acceleration of the ball = (v/t), = 18/.17, = 105.88m/sec^2. </span>
<span>f = (ma), = .226 x 105.88, = 23.92N. </span>
8 0
4 years ago
Read 2 more answers
On the average, about what percentage of the solar energy that strikes the outer atmosphere eventually reaches the earth's surfa
almond37 [142]
I think the answer to your question is twenty-four percent.
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3 years ago
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