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kvasek [131]
2 years ago
14

How much current is flowing in a wire 4.40 mm long if the maximum force on it is 0.575 NN when placed in a uniform 0.0550-TT fie

ld?
Physics
1 answer:
aleksandrvk [35]2 years ago
3 0

Answer:

Current in wire will be equal to i=2.376\times 10^9A

Explanation:

We have given length of the wire l = 4.40 mm =4.40\times 10^{-3}m

Maximum force F=0.575MN=0.575\times 10^6N

Magnetic field B = 0.0550 T

We know that force on wire is given by F=iBlsin\Theta

For maximum force value of sin\Theta will be maximum which is equal to 1

So force F=iBl\times 1=iBl

So 0.575\times 10^6=i\times 0.0550\times 4.40\times 10^{-3}

i=2.376\times 10^9A

So current in wire will be equal to i=2.376\times 10^9A

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While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.95 6.95 m/s. The st
qwelly [4]

Answer:

18.1347 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s² = a

v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-6.95^2}{2\times -9.81}\\\Rightarrow s=2.4619\ m

Total height the ball falls is 2.4619+14.3 = 16.7619 m

v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times 16.7619+0^2}\\\Rightarrow v=18.1347\ m/s

The speed at which the stone reaches the ground is 18.1347 m/s

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3 years ago
What is the outermost structure in a plant cell
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Molecular structure of the primary cell wall in plants. Up to three strata or layers may be found in plant cell walls: The middle lamella, a layer rich in pectins. This outermost layer forms the interface between adjacent plant cells and glues them together.
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What is caused by the condensation of water vapor?
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Read 2 more answers
A small glass ball rubbed with silk gains a charge of +2.0 uc. the glass ball is placed 12 cm from a small charged rubber ball t
Gre4nikov [31]
The magnitude of the electric force between two obejcts with charge q_1 and q_2 is given by Coulomb's law:
F= k_e \frac{q_1 q_2}{r^2}
where 
k_e = 8.99 \cdot 10^9 N m^2 C^{-2} is the Coulomb's constant
and r is the distance between the two objects.

In our problem, the distance is r=12 cm=0.12 m, while the magnitudes of  the two charges are
q_1 = 2.0 \mu C=2.0 \cdot 10^{-6}C
q_2 = 3.5 \mu C = 3.5 \cdot 10^{-6} C
(we can neglect the sign of the second charge, since we are interested only in the magnitude of the force).

So, using the formula and the data of the problem, we find
F=(8.99 \cdot 10^9 N m^2 C^{-2} ) \frac{(2.0 \cdot 10^{-6} C)(3.5 \cdot 10^{-6} C)}{(0.12 m)^2}=4.37 N
4 0
3 years ago
A parking lot charges 3 dollars for the first hour (or part of an hour) and 2 dollars for each succeeding hour (or part), up to
Aneli [31]

Answer:

function is discontinuous

and

after 3 hours upto day 24 hours fix charge $10

so there are discontinuous at 1st hour, 2nd hours and 3rd hours

Explanation:

given data

charge = $3 for 1st hour

charge = $2 for each succeeding hour

maximum charge = $10 daily

to find out

Is this function continuous

solution

their function is 3 +2x

so function is discontinuous here

and

this is very clear for 1st hour or part of hour it mean charge a fix value in given time

anyone who park fix charge for 60 min up to the 3 hours

after that for day 24 hours fix charge $10

so there are discontinuous at 1st hour, 2nd hours and 3rd hours

6 0
3 years ago
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