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3 years ago

14

a pelican hunt fish in the water as the pelican flies above the water surface why must aim for fish and a slightly different pla

ce and where the fish appears to be located

1 answer:

Alecsey [184]3 years ago

6 0

Answer:

Explanation:

So he can get most momentum when he takes that fish.

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A particle in uniform circular motion requires a net force acting in what direction?

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The net force will point towards the acceleration of the object, as supported by Newton's second law.

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Find the velocity of a turtle who swims 100 meters toward the shore in 25 seconds

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Explanation:

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How many turns should a 10-cm long ideal solenoid have if it is to generate a 1.5-mT magnetic field when 1.0 A of current runs t

Ira Lisetskai [31]

Answer:

N=119.34 turns

Explanation:

The magnetic field of a solenoid is calculated using the formula:

B= µo* $\frac{I*N}{L}$ Equation 1

Where:

B: magnetic field in Teslas (T)

µo: free space permeability in T*m/A

I= Intensity of the current flowing through the conductor in ampere (A)

N= number of turns

L= solenoid length in meters (m)

Data of the problem:

L=10cm= $10*10^{-2}$ , B= 1.5mT= $1.5*10^{-3} T$ ,I=1A

µo= $4\pi *10^{-7} \frac{T*m}{A}$

We cleared N of the equation (1):

N=B*L/ µo*I

N= $(1.5*10^{-3} *10*10^{-2} )/(4\pi *10^{-7} *1$

$N=0.1193*10^{3}$

Answer

N=119.34 turns

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4 years ago