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son4ous [18]
3 years ago
9

Wile E. Coyote is chasing the roadrunner and falls off a cliff. It takes Wile E Coyote 7 long seconds to hit the ground. How hig

h is the cliff (m)?​
Physics
1 answer:
mart [117]3 years ago
3 0

Answer:

240.1m  

Explanation:

Given parameters:

Time taken to hit the ground  = 7s

Unknown:

Height of the cliff = ?

Solution:

To solve this problem, we use the right motion equation expressed below:

             S = ut + \frac{1}{2} gt²

S is the height of the cliff

u is the initial velocity  = 0m/s

g is the acceleration due to gravity  = 9.8m/s²

t is the time taken

Now, insert the parameters and solve the problem;

      S = (0 x 7) + ( \frac{1}{2}  x 9.8 x 7²)

     S = 240.1m  

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The elastic potential energy stored in the stretched spring is 1 J.

<h3>What is Hooke's law?</h3>

Hooke's law states that; provided the elastic limit is not exceeded, the extension of the spring is directly proportional to the force on the spring.

Given that;

Force on the spring = 350 Newton

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k = F/e = 350 Newton/0.07 m = 5000 N/m

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= 0.5 × 5000 × (2 × 10^-2)^2 =1 J

Learn more about elastic potential energy: brainly.com/question/156316

4 0
2 years ago
Carmen simplifies the expression (4y+8x+6)+25+(4x+6y+7). The coefficient of the variable y in her simplified answer is
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The answer of the problem is 12x+10y+38
8 0
3 years ago
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How will a current change if the voltage in a circuit is held constant while the resistance doubles? 1. it's impossible to predi
laila [671]
According to Ohm's Law: 

I =  \frac{V}{R}

Where: V = Voltage
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As you can see here, you can say that Current is directly proportional to Voltage and indirectly proportional to Resistance. This means that as the voltage increases, current increases and as the resistance increases, current decreases. 

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4 0
3 years ago
A flat, circular loop has 18 turns. The radius of the loop is 15.0 cm and the current through the wire is 0.51 A. Determine the
Ostrovityanka [42]

Answer:

The magnitude of the magnetic field at the center of the loop is 3.846 x 10⁻⁵ T.

Explanation:

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number of turns of the flat circular loop, N = 18 turns

radius of the loop, R = 15.0 cm = 0.15 m

current through the wire, I = 0.51 A

The magnetic field through the center of the loop is given by;

B = \frac{N\mu_o I}{2R}

Where;

μ₀ is permeability of free space = 4π x 10⁻⁷ m/A

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6 0
4 years ago
An object is projected with initial speed v0 from the edge of the roof of a building that has height H. The initial velocity of
Vsevolod [243]

Answer:

Explanation:

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Displacement s = H . It is downwards so it will be positive

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Using the formula

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v = √ ( V₀² + 2 g H )

6 0
4 years ago
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