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AlekseyPX
3 years ago
9

2. Because it can take one year to form just a few centimeters of new soil, 3 points

Physics
1 answer:
Grace [21]3 years ago
6 0

Answer:

False.

Explanation:

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What type of telescope did Galileo use to observe Jupiter?
mihalych1998 [28]

Answer:

a refractor telescope

Explanation:

3 0
3 years ago
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Draw the position vs. time graph for a person walking at a constant speed of 1m/s for 10 seconds. On the same axes, draw graph f
Leto [7]
In both scenarios, the position - time graph will be a linear graph, since the speed is constant, so your position is moving at a consistent pace.
7 0
3 years ago
If the ac peak voltage across a 100-ohm resistor is 120 V, then the average power dissipated by the resistor is ________
Kazeer [188]

Answer:

The average power dissipated is 72 W.

Explanation:

Given;

peak voltage of the AC circuit, V₀ = 120 V

resistance of the resistor, R = 100 -ohm

The average power dissipated by the resistor is given by;

P_{avg} = \frac{1}{2} I_oV_o= I_{rms}V_{rms} = \frac{V_{rms}^2}{R}

where;

V_{rms} is the root-mean-square-voltage

V_{rms} = \frac{V_o}{\sqrt{2}} \\\\V_{rms} = \frac{120}{\sqrt{2}}\\\\V_{rms} = 84.853 \ V

The average power dissipated by the resistor is calculated as;

P_{avg} = \frac{V_{rms}^2}{R}\\\\P_{avg} = \frac{84.853^2}{100}\\\\P_{avg} = 72 \ W

Therefore, the average power dissipated is 72 W.

5 0
3 years ago
A small rock with mass 0.20 kg is released from rest at point A, which is at the top edge of a large, hemispherical bowl with ra
abruzzese [7]

Answer:

0(zero)

Explanation:

Given that m=0.20kg, radius of the bowl,R=050m and that the mass slides from point A to B.

-Since the normal force is perpendicular to the displacement at every point of the motion,then work  done by the normal force is zero.

3 0
3 years ago
a toaster has a heating element of 15 ohms and is connected to 120 volt outlet. show that the current drawn by the toaster is 8
algol13

Answer:

Explanation:

Ohm's law:

V = IR

Given V = 120 V and R = 15 Ω:

120 V = I (15 Ω)

I = 8 A

4 0
3 years ago
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