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goldfiish [28.3K]
3 years ago
6

An artillery shell is fired at an angle of 83.3 ◦ above the horizontal ground with an initial speed of 1600 m/s. the acceleratio

n of gravity is 9.8 m/s 2 . find the total time of flight of the shell, neglecting air resistance. answer in units of min. 002 (part 2 of 2) 10.0 points find its horizontal range, neglecting air resistance. answer in units of km.
Physics
1 answer:
timurjin [86]3 years ago
5 0
T = 2*V₀*sin (α) / g .

t = 2*1600*sin (83.3°) / 9.8 ≈ 2*1600*0.993 / 9.8 ≈ 324 sec   or  5.3 min


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Correct question:

A solenoid of length 0.35 m and diameter 0.040 m carries a current of 5.0 A through its windings. If the magnetic field in the center of the solenoid is 2.8 x 10⁻² T, what is the number of turns per meter for this solenoid?

Answer:

the number of turns per meter for the solenoid is 4.5 x 10³ turns/m.

Explanation:

Given;

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magnetic field in the center of the solenoid, 2.8 x 10⁻² T

The number of turns per meter for the solenoid is calculated as follows;

B =\mu_o  I(\frac{N}{L} )\\\\B =  \mu_o  I(n)\\\\n = \frac{B}{\mu_o I} \\\\n = \frac{2.8 \times 10^{-2}}{4 \pi \times 10^{-7} \times 5.0} \\\\n = 4.5 \times 10^3 \ turns/m

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The dimensions of a cylinder are changing, but the height is always equal to the diameter of the base of the cylinder. If the he
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Answer:

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Alexxandr [17]

Answer:

<em>The average speed of the train is 45 km/h</em>

Explanation:

<u>Speed</u>

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\displaystyle t_1=\frac{d_1}{v_1}

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