What characteristic is responsible for our brain being able to distinguish different colors?
Options:
Each color is a different wavelength of light
Each color of light has a different amplitude
Light changes colors as it goes through the different mediums between the air and our eyes
Each color has a different speed
Answer:
Each color is a different wavelength of light
Explanation:
Our brain mixes information from each receptor which gives contrasting perceptions to each wavelength.
Please help will give the brainliest and 20 points, please don’t steal points you will be reported and NO LINKS please. Please give the right answer. Only 3 question
How did humans decide how long a year should be?
How is life on Earth affected by Earth's revolution around the Sun?
Why does the appearance of the Moon change throughout its cycle?
Answer:
3
Explanation:
3
Ethan moves a 100 kg barrel up a 50 meter ramp. The amount of work Ethan has completed is
Answer: i think he's done 50% of work
Explanation:
Please help with question!
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How did humans decide how long a year should be?
Answer:
The decided by staring at and observing the stars.
Explanation:
What is the formula for displacement?
∆ = xf − xi
v = /
v = ∆/
∆ = v ∙ t
Choose all that apply
Answer:
Explanation:
Displacement is the change in an object's position from the origin. Displacement is a vector quantity, and thus has both magnitude and direction. Displacement = (final position) - (initial position) = change in position. D = Xf -Xi. D = displacement.
Mind being a helping hand? I know ABSOLUTELY nothing about air resistance.. It's still science for me so I guess I'll put it as physics?
Answer:
the first one would
Explanation:
air resistance and the second would be gravity or mass
if you need an explanation ask
HELP PLEASE and NO links please give the right answer
Describe how the kidney and bladder work together to remove waste from the body. (2 points)
Answer:
The kidneys make urine by filtering wastes and extra water from blood. Urine travels from the kidneys through two thin tubes called ureters and fills the bladder. When the bladder is full, a person urinates through the urethra to eliminate the waste.
Explanation:
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Which of the following correctly explains a difference between the Steady State and Big Bang theories?
The Steady State theory says the galaxies are moving; the Big Bang theory says the galaxies are not moving.
The Steady State theory says the universe is getting smaller; the Big Bang theory says the universe is getting bigger.
The Steady State theory is supported by more evidence; the Big Bang theory is supported by less evidence.
The Steady State theory says the universe was always there; the Big Bang theory says the universe
Answer:
The Steady State theory says the universe is getting smaller; the Big Bang theory says the universe is getting bigger.
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The graph shows the constant speed of a train.
What is the speed of the train?
A. 1200 km/h
B. 300 km/h
C. 75 km/h
D. 4 km/h
Answer:
75 km/h
Explanation:
Speed = Distance divided by Time.
The train went a distance of 300 km in 4 hours. Therefore, the speed of the train is: 300 divided by 4 = 75 km/h
The speed of the train is equal to 75 km/h. Therefore, option (C) is correct.
What is speed?The speed of a body can be defined as the distance traveled by an object in a particular time interval. The average speed can be defined as a scalar parameter as it exhibits only the magnitude but not the direction of motion.
The speed of an object can be calculated from the ratio of the distance of the object to the time required to cover that distance.
The equation for the calculation of the speed can be written as follows:
Speed = distance /time taken
From the graph, at t = 2 h, the distance covered by train = 150 km
At time t = 4 h, the distance covered by train = 300 km
[tex]\displaystyle Speed = \frac{300-150}{4-2}[/tex]
Speed = 150/2
Speed of the train = 75 Km/h
Therefore, the speed of the train is 75 km/h.
Learn more about the speed, here:
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Can someone please help me think of an idea for this. My teacher wants me to think of a gadget that uses two simple machines, and it has to be able to help a child or an elderly person with a house hold chore. Please help me come up with an idea.
Pls help me ASAP it is for a final I dont understanddddd
Real help
Answer:
Maggie is trying to find out if the amount of sugar in a liquid affects the amount of time it takes to freeze
A good hypothesis is: The more sugar in the drink the longer it takes to freeze
Conclusion= she concludes that her hypothesis is correct as the unsweetened tea froze the fastest while the root beer took the longest time as it contained the most sugar
Explanation:
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help me with this please
Answer:
Define the term care lables
Explanation:
Is a permanent label or tag,containing regular care information and instructions