Longitudinal waves compress the medium they travel though. One example of a longitudinal wave is a
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Answer: Waves in compressed string
Explanation:
Longitudinal waves are waves in which the vibration of the medium is going parallel to the direction of the waves produced by the medium.
Longitudinal wave can occur in compressed string. A compressed string displaced horizontally will transmit wave in the same horizontal direction. That's why they are longitudinal waves.
Answer:
It is sound waves
(I did USAtestprep)
Explanation:
Related Questions
What is the total magnification of a microscope with two lenses when one lenses has a magnification of 15 and the other lens has magnification of 30- 15 - 30 - 45 - 450
Most of the circuits in your home area. parallel circuits. b. switch circuits. c. series circuits. d. reversible circuits.
A stone is dropped from a cliff. What will be its speed when it was fallen 100 m?
Define density and give its SI unit
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During the respiration, glucose molecules are converted to other molecules in a series of steps. They finally end up as as carbon-dioxide and water.
The overall reaction is
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + 2805 kJ
The reaction is exothermic reaction because C=O and O-H bonds in the products are so much more stable than the bonds in the reactants.
Bond energy is the average needed to break a bond.
Some bond energies are:
C-C = 347 kJ/mol
C-H = 413kJ/mol;
C-O = 358 kJ/mol;
O-H = 467 kJ/mol;
O=O = 495 kJ/mol;
C=O = 799 kJ/mol
Final answer:
Respiration is an exothermic reaction because it releases more energy than it absorbs in the form of heat to its surroundings. All such reactions require an initial energy input, known as 'activation energy', to start the reaction. In an exothermic reaction, the heat content 'q' is negative, showing the transfer of thermal energy from the system to its surroundings.
Explanation:
Respiration is an "exothermic reaction", which means it is a chemical reaction that releases energy in the form of heat to its surroundings. This is achieved through the catabolism of foods in your energy bar, which is an example of an exergonic reaction. This reaction absorbs some of the chemical energy stored in the food, turns it into molecules your body can use, and releases the excess energy into the surroundings. However, all chemical reactions, including exothermic and endothermic reactions, require a small amount of energy to activate them.
During an exothermic reaction, there is a net release of energy despite this initial energy input. The energy given off is more than the energy absorbed. This process represents the concept of 'activation energy', an energy barrier that needs to be overcome for the reaction to proceed. Therefore, the heat content, often represented as 'q', is negative in an exothermic reaction, indicating that the system gives off thermal energy to the surroundings, making the surrounding environment warmer.
Learn more about Exothermic Reactions here:
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Answer:
45,000 J
Explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
GPE = 60 × 10 × 75
We have the final answer as
45,000 J
Hope this helps you
Answers
Answer:
Explanation:
speed of bat = 6 m/s
sound wave frequency emitted by bat = 30.0 kHz
as we know,
speed of sound (c)= 343 m/s
now frequency received by bat is equal to
hence the frequency hear by bat will be 29.98 Hz
Final answer:
The Doppler effect represents the change in frequency of a wave due to the motion of the source or the observer. In this case, the bat hears a higher frequency because of its motion towards the wall and the reflection of the sound wave back towards it.
Explanation:
The question is asking for the frequency the bat hears when it emits a sound and the sound is reflected back after hitting a wall. This is an example of the Doppler effect, where the frequency of a wave changes for an observer moving relative to the source of the wave.
Let's denote the emitted frequency as f (30.0 kHz), the speed of the bat as v (6.0 m/s), and the speed of sound in air as v_s (approximately 343 m/s).
First, when the bat emits the ultrasonic wave, the frequency of the wave will increase because of the motion of the bat towards the wall. The formula for observed frequency (f') when source and observer are getting closer is given by f' = f * (v_s + v) / v_s.
Next, the wall will reflect this wave back towards the bat. Since the wave is moving towards the bat, the frequency will increase again by the same factor, resulting in a final observed frequency of f'' = f' * (v_s + v) / v_s. When you substitute f' into this equation, you'll get: f'' = f * (v_s + v)^2 / v_s^2
Learn more about Doppler effect here:
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B. potential energy.
C. thermal energy.
D. work.
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Friction converts kinetic energy into heat, and so it represents a net loss of mechanical energy. When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into heat. As demonstrated by the use of friction created by rubbing pieces of wood together to start a fire, kinetic energy is converted to heat whenever motion with friction occurs. The friction produced by brake pads in a car must generate a quantity of heat equal to the kinetic energy of the car and as a result, the brakes get quite hot.
good day
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Answer:
What is butter
Explanation:
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∴ the answer is 200/49