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Maksim231197 [3]
3 years ago
9

Kelly Clarkson is running between the Patronas towers in Kuala Lumpur on a tightrope at a speed of 15 m/s. Kelly currently weigh

s 79 kg. What is her KE?
Physics
2 answers:
Tomtit [17]3 years ago
8 0

KE = 8887.5 J

<h3>Further explanation</h3>

Given

speed = 15 m/s

weight = 79 kg

Required

KE-Kinetic energy

Solution

Energy is the ability to do work  

Energy because its motion is expressed as Kinetic energy (KE) which can be formulated as:  

\large {\boxed {\bold {KE = \frac {1} {2} mv ^ 2}}}

Input the value :

KE = 1/2 x 79 kg x 15² m/s²

KE = 8887.5 J

Margaret [11]3 years ago
7 0

Answer:

KE = 8887.5 J

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.012 J is going to be your answer

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A thunderclap sends a sound wave through the air and the ocean below. The
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Answer:

C. 14.93 m

Explanation:

The given frequency of the wave, f = 100 Hz

The given equation for the wave speed, <em>v</em>, is presented as follows;

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The wavelength, λ = v/f

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8 0
3 years ago
In a discussion person A is talking 1.2 dB louder than person B, and person C is talking 3.2 dB louder than person A. What is th
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Answer: 3.84dB

Explanation:

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Similarly, person C is talking 3.2 dB louder than person A, we have

C = 3.2A... (2)

From equation 1, B = A/1.2... (3)

To get the ratio of the sound intensity of person C to the sound intensity of person B, we will divide equation 2 by 3 to give

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3 0
3 years ago
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. The yello
klemol [59]

Answer:

3.62m/s and 2.83m/s

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Vof(sin38) - Vgf(sin52) = 0

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For horizontal component

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Divide through by m

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Recall that

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3 0
3 years ago
Explain how objects in motion have kinetic energy, use examples
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Kinetic energy is energy that a body possesses by virtue of being in motion, there for if an object is moving, it has kinetic energy.
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