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Sphinxa [80]
2 years ago
8

Coil the length of 15 centimetres with a cross section of 30 centimetres square has a charge of 250. Inside the coil is a nickel

core, permeability is 300. A current of 0,1 amperes flows through the thread.
Determine:

a) The strength of the magnetic field inside the winding

b) Magnetic induction inside the winding

c) Magnetic flux through the charge
Physics
1 answer:
STALIN [3.7K]2 years ago
5 0

Answer:

Write 1 event or Andrea Levi's experience that lead her to question her relationship to Britain and Jamaica

Explanation:

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A 3.91 kg cart is moving at 5.7 m/s when it collides with a 4 kg cart which was at rest. They collide and stick together.
Nesterboy [21]

Answer:

<em>The velocity after the collision is 2.82 m/s</em>

Explanation:

<u>Law Of Conservation Of Linear Momentum </u>

It states the total momentum of a system of bodies is conserved unless an external force is applied to it. The formula for the momentum of a body with mass m and speed v is  

P=mv.  

If we have a system of two bodies, then the total momentum is the sum of the individual momentums:

P=m_1v_1+m_2v_2

If a collision occurs and the velocities change to v', the final momentum is:

P'=m_1v'_1+m_2v'_2

Since the total momentum is conserved, then:

P = P'

Or, equivalently:

m_1v_1+m_2v_2=m_1v'_1+m_2v'_2

If both masses stick together after the collision at a common speed v', then:

m_1v_1+m_2v_2=(m_1+m_2)v'

The common velocity after this situation is:

\displaystyle v'=\frac{m_1v_1+m_2v_2}{m_1+m_2}

There is an m1=3.91 kg car moving at v1=5.7 m/s that collides with an m2=4 kg cart that was at rest v2=0.

After the collision, both cars stick together. Let's compute the common speed after that:

\displaystyle v'=\frac{3.91*5.7+4*0}{3.91+4}

\displaystyle v'=\frac{22.287}{7.91}

\boxed{v' = 2.82\ m/s}

The velocity after the collision is 2.82 m/s

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2 years ago
After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock. what does that
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When you touch<span> a doorknob (or something else made of metal), which has a positive charge with few electrons.</span>
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A is right because I took the test
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Liono4ka [1.6K]

Answer:

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