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3 years ago

Which would not be a reason for using wind power?

Physics

1 answer:

Nookie1986 [14]3 years ago

6 0

C it takes a lot of capital to get the windmills and the fields of windmills set up

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I need the right answer ASAP NO LINKS!!!

Jet001 [13]

Answer:

models are only used by scientists

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3 years ago

According to the law of conservation of matter, the number of ________ is not changed by a chemical reaction.

kondaur [170]

The answer should be atoms.

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3 years ago

Read 2 more answers

Dos coches, uno de 1.000 kg que circula a 100 km/h, y otro de 1.200 kg que circula a 90

Kobotan [32]

The collision of car 2 is more violent (because more impulse is exerted)

Explanation:

The collision which is more violent is the one in which more impulse is exchanged.

The impulse exerted by each car on the wall is equal to the change in momentum of the car:

$I=m\Delta v$

where

m is the mass of the car

$\Delta v$ is the change in velocity

For the car 1,

m = 1000 kg

$\Delta v = -100 km/h \cdot \frac{1000 m/km}{3600 s/h}=-27.8 m/s$ (the sign is negative because the velocity of the car has changed from 100 km/h to 0 km/h)

So the magnitude of the impulse of car 1 is

$I_1 = (1000)(27.8)=27,800 kg m/s$

For the car 2,

m = 1200 kg

$\Delta v = -90 km/h \cdot \frac{1000 m/km}{3600 s/h}=-25 m/s$

So the magnitude of the impulse of car 2 is

$I_2 = (1200)(25)=30,000 kg m/s$

So, car 2 exerts a larger impulse, therefore its impact is more violent.

Learn more about impulse and change in momentum:

brainly.com/question/9484203

#LearnwithBrainly

7 0

3 years ago

A coil is connected in series with a 12.6 kΩ resistor. An ideal 65.2 V battery is applied across the two devices, and the curren

ivolga24 [154]

To solve the problem, start by applying the concepts related to current in an RL circuit. The current is defined exponentially and using Ohm's law we can put the initial current in terms of the voltage and resistance. Consecutively with the calculated time constant we can find the respective inductance. For the second part we will apply the electrical potential energy connectors to find the amount of stored energy.

PART A)

$i = i_0 (1-e^{-t/T})$