Answer:
Solar prominences
Explanation:
The maximum kinetic energy of the skateboarders at the bottom of the ramp is 3234 J.
Kinetic energy is the energy of a body due to motion.
To calculate the maximum kinetic energy of the skateboarders at the bottom of the ramp, we use the formula below.
Formula:
Where:
From the question,
Given:
Substitute these values into equation 2
Hence, the maximum kinetic energy of the skateboarders at the bottom of the ramp is 3234 J.
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Answer:
To prevent from getting injured.
it can prevent us from various accident a
B. increasing the string's thickness.
C. loosening the string.
D. lengthening the string.
In a stringed musical instrument, the sound frequency of a particular string can be increased by tightening the string (option A).
The frequency of a vibrating string determines the pitch of the sound it produces. Higher frequencies result in higher-pitched sounds, while lower frequencies produce lower-pitched sounds.
By tightening the string, the tension in the string increases. This increased tension leads to an increase in the frequency of vibration of the string when plucked, bowed, or struck. As a result, the pitch of the sound produced by the string becomes higher. Option A is therefore correct.
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