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ddd [48]
3 years ago
9

A plane that is moving 200 m/s drops a package. The package takes 15 seconds to reach the ground.

Physics
1 answer:
algol133 years ago
7 0

Answer:

Explanation:

We can calculate the height covered by the package

Given

Velocity u = 200m/s

Time t = 15s

Using the equation of motion

S = ut+1/2gt²

S = 200(15)+1/2(9.8)(15)²

S = 3000+225(4.9)

S = 3000+1102.5

S = 4102.5m

Hence the package falls a height 4102.5m

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Answer:

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8 0
3 years ago
A 20.0-µF capacitor is charged by a 150.0-V power supply, then disconnected from the power and connected in series with a 0.280
natali 33 [55]

Answer

given,

Capacitance of capacitor = 20.0-µF

Voltage =  150.0-V

inductance = 0.280 m H

a) the oscillation frequency of circuit

f = \dfrac{1}{2\pi}\ sqrt{\dfrac{1}{LC}}

f = \dfrac{1}{2\pi}\ sqrt{\dfrac{1}{0.280 \times 10^{-3}\times 20 \times 10^{-6}}}

f = 2126.9 Hz

b) U = \dfrac{1}{2}CV^2

   U = \dfrac{1}{2}(20\times 10^{-6})(150)^2

         U = 0.225 J

c)Current in the inductor

    V = L \dfrac{dI}{dt}

    150 = 0.28 \times 10^{-3} \dfrac{dI}{dt}

    \dfrac{dI}{dt} = 535714

instantaneous rate of change of current is equal to 535714 A/s

 

7 0
3 years ago
What was the trail of tears?
Deffense [45]
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40 POINTSS. Now explore friction force. Set the piece of plastic or wood on the table and push it steadily across the tabletop u
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2 years ago
A motor lifts a weight of 5N up to the height of 2m in 4 seconds. What will be the power of motor?​
PolarNik [594]

2.5 watt

Explanation:

we know

power = work done /time

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therefore ,

Power = 10/4 = 2.5 watt

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3 years ago
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