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Sergio [31]
2 years ago
13

It takes a photon 8 minutes and 25 seconds ro reach earth. What is the distance (labeled 1 au) in meter between the sun and eart

h? The speed od light un a vacuum is 3e8 m/s
Physics
1 answer:
tangare [24]2 years ago
3 0

Answer:

x=0.017 AU  

Explanation:

We can use the equation of speed in terms of distance. We know that the speed of light is constant value so we will have:

v=\frac{x}{t}

x=v*t

x=3*10^{8}*8.417  

x=2.53*10^{9}m  

Now we know that 1 AU = 1.496*10^{11}m

x=0.017 AU  

I hope it helps you!

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A proton, an alpha particle (a bare helium nucleus), and a singly ionized helium atom are accelerated through a potential differ
ra1l [238]

Answer:

The correct question is:

"Find the energy each gains"

The energy gained by a charged particle accelerated through a potential difference is given by

\Delta U = q\Delta V

where

q is the charge of the particle

\Delta V is the potential difference

For a proton,

q=+e=1.6\cdot 10^{-19}C

And since \Delta V=100 V

The energy gained by the proton is

\Delta U=(1.6\cdot 10^{-19})(100)=1.6\cdot 10^{-17}J

For an alpha particle,

q=+2e=3.2\cdot 10^{-19}C

Therefore, the energy gained is

\Delta U=(3.2\cdot 10^{-19})(100)=3.2\cdot 10^{-17}J

Finally, for a singly ionized helium nucleus (a helium nucleus that has lost one electron)

q=+e=1.6\cdot 10^{-19}C

So the energy gained is the same as the proton:

\Delta U=(1.6\cdot 10^{-19})(100)=1.6\cdot 10^{-17}J

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3 years ago
Waves can transfer energy through
lina2011 [118]

Answer:

electromagnetic waves

Explanation:

"wave" is a common term for a number different ways in which energy is transferred

3 0
3 years ago
How far did a frog jump if he travels at a rate of 2.1 m/s for 10 seconds?
Anestetic [448]

Answer:

21 m

Explanation:

The motion of the frog is a uniform motion (constant speed), therefore we can find the distance travelled by using

d=vt

where

d is the distance covered

v is the speed

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The frog in this problem has a speed of

v = 2.1 m/s

and therefore, after t = 10 s, the distance it covered is

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3 0
3 years ago
Otherwise, Newton's First Law of Motion says that an object will continue to stay at rest or at a _____ until a force is applied
andrezito [222]
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5 0
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Sunny_sXe [5.5K]

Answer:

The minimum speed = \sqrt{\frac{2GM}{R} }

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The minimum speed can be determined by;

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If the appropriate values of the variables are substituted into the expression, the value of the minimum speed required can be determined.

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