How are the frequency and wavelength of electromagnetic waves related?
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The frequency of electromagnetic wave is inversely proportional to the wavelength of the wave.
The speed of a wave is directly proportional to the wavelength of the wave.
v = fλ
where;
- v is the speed of the wave
- f is the frequency of the wave
- λ is the wavelength
The frequency and wavelength of electromagnetic waves is related by the following equation as shown below;
Thus, we can conclude that the frequency of electromagnetic wave is inversely proportional to the wavelength of the wave.
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Magali exerts a force of 4.5N to slide her blackberry across the table.If she does 2.7J of work in the process,how far has the blackberry moved?
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Pi is commonly used in its more simpler from, and its most commonly known form of 3.141
I hope this answers your question.
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The transfer of thermal energy as heat requires a difference in temperature between the two points of transfer. Heat may be transferred by means of conduction, convection, or radiation. Conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object.
Final answer:
Heat transfer between two objects ends when they reach the same temperature or thermal equilibrium. This process is guided by the second law of thermodynamics and can be observed via changes in temperature. Once no net heat transfer occurs over time, a state of thermal equilibrium is reached.
Explanation:
The transfer of heat, or thermal energy, between two objects ends when those objects reach the same temperature, a state known as thermal equilibrium. This process is guided by the second law of thermodynamics, which indicates that heat will naturally transfer from a hotter object to a cooler one. For instance, if you put ice into a hot drink, heat transfers from the warmer drink to the colder ice until they both reach the same temperature. Furthermore, the internal energy of a system, which includes its thermal energy, is directly proportional to its temperature. Hence, observing the temperature change can provide an indication of when heat transfer has ceased.
However, it's important to note that the absence of a temperature difference doesn't mean energy isn't there; it just isn't available for work because no more heat transfer can occur without a temperature difference. This provides a fundamental characterization of a thermodynamic system and exemplifies that observation of no net heat transfer over time indicates a state of thermal equilibrium.
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alternating current
direct current
potential current
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Answer:
directcurrenthopethishelped:)
B. molecules move more rapidly
C. there is no change in molecular motion
D. temperature remains unchanged
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There would be a change in the kinetic motion of the objects.
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We have: m = 45 g = 0.045 Kg
U = 2.06 J, g = 9.8 m/s², h = ?
Substitute the values in the formula:
2.06 = 0.045 × 9.8 × h
2.06 = 0.441 × h
h = 2.06 / 0.441
h = 4.67 m
In short, your final answer would be 4.67 meters
Hope this helps!
2.06 J = 2.06 kg·m²/s² = (0.045 kg)·(9.8 m/s²)·h
where h is the height the ball has reached
Solve for h:
h = 2.06/(0.045·9.8) = 4.67 to the nearest hundredth
h = 4.67 m