The photos of an electromagnetic wave us 1. 5 × 10^-24 j of energy , what kind of electromagnetic waves are they ?
Answers
The electromagnetic waves with an energy of are likely X-rays.
The energy of an electromagnetic wave is related to its frequency and wavelength by the equation:
E = hf = hc/λ
where:
E = energy of the electromagnetic wave
h = Planck's constant ()
f = frequency of the electromagnetic wave
c = speed of light ()
λ = wavelength of the electromagnetic wave
Solving for λ:
λ = hc/E =
λ ≈
This corresponds to a wavelength of about 44 nanometers, which falls in the range of X-rays. Therefore, the electromagnetic waves with an energy of are likely X-rays.
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Related Questions
A circuit component with a high resistance will have a low electric current. a. Trueb. False
1. Two charged objects repel each other whentheir charges are of different signs they have the same number of protonstheir charges are of the same signs they have the same number of electrons2. Batteries typically have two positive terminalstwo negative terminals one positive and one negative terminal no terminals
What is a wavelength?a. the highest part of the wave b. the distance between two wave troughs c. the speed of energy of the wave d. the lowest part of the wave
Choose the best answer for each situation. a scientist with the epa examining water for contamination writes down that there was an iridescent sheen on the surface of the water. what type of data did the scientist record? a scientist needs to know the temperature of the water every 5 m along 3 km of the river. what tool would the scientist use?
Answers
Answer:
Image distance of apple=-6.7 cm
Magnification of apple=0.33
Explanation:
We are given that an apple is placed 20.cm in front of a diverging lens.
Object distance=u=-20 cm
Focal length=f=-10 cm
Because focal length of diverging lens is negative.
We have to find the image distance and magnification of the apple.
Lens formula
Substitute the values then we get
Image distance of apple=-6.7 cm
Magnification=m=
Magnification of apple=
Hence, the magnification of apple=0.33
Answers
the image on the retina is upside-down, and that worries you.
The answer is: It's all easily handled by that glob of gray stuff inside our head.
The brain takes the inverted image, and responds to it as if it were right-side-up.
That sounds complicated and difficult, because we have no idea how terrific
our brain really is. So let me tell you this story, and it'll blow your mind:
When psychologists realized that the brain was turning everything we see
right-side-up, they did an experiment. They had some special glasses made,
that would turn everything upside-down before it went into the eyes, so that
the image on the retina would be right-side-up, and the person would see
everything upside-down. Then they had some people try to go through their
normal activities with these glasses on. Want to know what happened ?
The test subjects were pretty awkward at first, tripping over things and
bumping into walls. But after a few days, their brain made the adjustment,
and they didn't notice anything strange any more. They could read books,
wash the dishes, play ball, and most of them were even able to ride bicycles
around their neighborhood in the normal way ! Then, when the experiment
was over, they took the glasses off, and they were awkward again for a few
days, and then their brains flipped everything over again and they got
re-adjusted to normal.
THAT's how clever our brain is !
Answers
Answers
Given that the charge of the balloon is -2 × 10^(-9) C and the distance from the balloon is 1 m, we can substitute these values into the equation:
E = (9 × 10^9 N · m²/C²) * (-2 × 10^(-9) C) / (1 m)^2
Note that the negative sign indicates the direction of the electric field, which in this case is due north.
E ≈ -18 N/C
Therefore, the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon is approximately 18 N/C.
Answers
Answer:
The apparent weight is the weight of the body minus the weight of the liquid displaced. The body will float only when both the weights are same. In this case, the given body of weight W is floating and hence the apparent weight is zero.
Answer:
Zero
Explanation:
The apparent weight is the weight of the body minus the weight of the liquid displaced. The body will float only when both the weights are same. In this case, the given body of weight W is floating and hence the apparent weight is zero.
b. unbalanced force.
c. gravitational force.
d. centripetal force.
Answers
b). unbalanced force
There's no such thing as either of these. A group of two or more forces can be balanced or unbalanced. A single force can't be.
c). gravitational force ... doesn't cause an object to move in a circle;
Drop a stone from the roof of a tall building and watch it fall.
It goes straight down, not in a circle.
d). centripetal force ... force directed toward the center of a circle,
causes an object to move in a circle.
an unbalanced force moving everyone in Daniel and Maria's direction