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konstantin123 [22]
1 year ago
9

If the number of turns in a primary coil is 200 and the voltage is 120 V, then how many turns are needed in a secondary coil of

a transformer to produce an output voltage of 24,000 V?
Physics
1 answer:
MatroZZZ [7]1 year ago
6 0

Np/Ns = Vp/Vs

200/Ns=120/24000

Ns=40,000

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A pirate ship shoots a cannon towards an oncoming ship. The cannon ball has a mass of 25 kg and the ship has a mass of 2500 kg.
mars1129 [50]

Answer:

25 m/s in the opposite direction with the ship recoil velocity.

Explanation:

Assume the ship recoil velocity and velocity of the cannon ball aligns. By the law of momentum conservation, the momentum is conserved before and after the shooting. Before the shooting, the total momentum is 0 due to system is at rest. Therefore, the total momentum after the shooting must also be 0:

m_sv_s + m_bv_b = 0

where m_s = 2500 kg, m_b = 25 kg are masses of the ship and ball respectively. v_s = 0.25 m/s, v_b are the velocities of the ship and ball respectively, after the shooting.

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3 years ago
ANSWER ASAP
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While traveling along a highway a driver slows from 32 m/s and comes to a stop with an acceleration of -6 m/s2. How long did it
diamong [38]

Answer: 6s

Explanation:

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----------------

Use equation for acceleration :

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gtnhenbr [62]

Answer:

Incomplete question, check attachment for the graph needed to solve problem.

A 8.1nm........

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5 0
3 years ago
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