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Vladimir79 [104]
3 years ago
7

Who would have the most potential energy?

Physics
2 answers:
maksim [4K]3 years ago
5 0
The answer is A. A 80 kg student sitting in the bottom row of the bleachers
snow_lady [41]3 years ago
4 0

Answer:

I'm pretty sure it's A.

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Many adventures like to go rafting on the Colorado River through Grand Canyon National Park. There are many locations where the
GalinKa [24]

Answer:

6.4 m/s

Explanation:

Given that :

The average width of the Colorado river = 100 m

Average depth of the river is = 8 m

Therefore, area = $A_1= 100 \ m \times 8 \ m$

Speed of the river, $v_1 = 3 \ m/s$

After the lava falls on the river,

Width of the river becomes = 25 m

Depth of the river became = 15 m

Therefore, area = $A_2= 25 \ m \times 15 \ m$

Now, since the volume flow rate of the Colorado river is same, then from the Continuity equation,

$Q_1=Q_2$

$A_1v_1=A_2v_2$

∴ $100 \times 8 \times3 = 25 \times 15 \times v_2$

$v_2=\frac{100 \times 8 \times 3}{25 \times 15}$

    = 6.4 m/s

Therefore, the speed of the river in this location is 6.4 m/s

6 0
4 years ago
Use the drop-down menu to answer the question. In the equation I = v over r , what does I stand for? please help
ExtremeBDS [4]

Answer:

Current

Explanation:

The equation you mentioned is also known as Ohm's law, which can be applied for any circuit containing a battery and one (or more) resistors:

V=IR

where

V is the voltage

I is the current

R is the resistance

We can re-arrange the equation and rewrite it explicitely for I, the current, to match the equation mentioned in the text of the question, and we have:

I=\frac{V}{R}

6 0
3 years ago
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In a game of tug of war, a rope is pulled by a force of 182 N to the right and by a force of 108 N to the left. Calculate the ma
Mrac [35]

Answer:

74 N to the right

Explanation:

the forces are going in opposite horizontal directions, meaning that they are directly opposing each other. this means that you can subtract the force applied in the direction that is greater from the direction that is less to get the net force for the greater direction

this means 182 N - 108 N = 74 N to the right

6 0
3 years ago
100 POINTS!!!!!!!!!!!!!! Hello people! So I really need help on this essay. It's due tomorrow but I have two more due tomorrow.
Whitepunk [10]

Answer:

Solar energy; It benefits life because it does not produce greenhouse chemicals that are dangerous to the evironment, it uses the hot light of the plasma from the sun to pass through the solar panels, form there it can be stored and used in batteries already built in, it also provides lots of money savings troughout the seasons, and it can save 155 dollars a year.

Explanation:

6 0
4 years ago
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The driver of a car hears the siren of an ambulance that is moving away from her. If the actual frequency of the siren is 2000 h
MatroZZZ [7]
The answer is A.) 1,900 Hz
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3 years ago
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