Answer:
![x = 3.84\times 10^{5}\,km](https://tex.z-dn.net/?f=x%20%3D%203.84%5Ctimes%2010%5E%7B5%7D%5C%2Ckm)
This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.
Explanation:
The laser pulse has an ondulatory nature as electromagnetic wave, which can travel in the void. Speed of light is constant and distance between Earth and the Moon is:
![x = 0.5\cdot c\cdot \Delta t](https://tex.z-dn.net/?f=x%20%3D%200.5%5Ccdot%20c%5Ccdot%20%5CDelta%20t)
![x = 0.5\cdot (3\times 10^{5}\,\frac{km}{s})\cdot (2.56\,s)](https://tex.z-dn.net/?f=x%20%3D%200.5%5Ccdot%20%283%5Ctimes%2010%5E%7B5%7D%5C%2C%5Cfrac%7Bkm%7D%7Bs%7D%29%5Ccdot%20%282.56%5C%2Cs%29)
![x = 3.84\times 10^{5}\,km](https://tex.z-dn.net/?f=x%20%3D%203.84%5Ctimes%2010%5E%7B5%7D%5C%2Ckm)
This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.
C. endothermic
An endothermic process takes heat from the surroundings while an exothermic process gives out heat to the surroundings.
Answer:
The terrestrial planets are closer to the sun.
Explanation:
Answer:
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Explanation:
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Answer:
False statement = There must be a non-zero net force acting on the object.
Explanation:
An object is moving at a constant speed along a straight line. If the speed is constant then its velocity must be constant. We know that the rate of change of velocity is called acceleration of the object i.e.
![a=\dfrac{dv}{dt}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7Bdv%7D%7Bdt%7D)
a = 0
⇒ The acceleration of the object is zero.
The product of force and acceleration gives the magnitude of force acting on the object i.e.
F = m a = 0
⇒ The net force acting on the object must be zero.
So, the option (a) is not true. This is because the force acting on the object is zero. First option contradicts the fact.