Answer:
damage
Explanation:
radiation will defenately damage body cells
Which hand is negatively charged?
Answer:
Right because there are plus inside the hand
Which statement correctly describes the relationship between wavelength, frequency, and energy?
A) Waves with a short wavelength have a high frequency and low energy.
B) Waves with a short wavelength have a high frequency and high energy.
C) Waves with a short wavelength have a low frequency and low energy.
D) Waves with a short wavelength have a low frequency and high energy.
Answer:
A.
Explanation:
maybe because the frequency of a wave increases due high wave and low energy. Hope this helps :3
Match the type of electromagnetic wave to the description on the right.
Low energy, ow frequency, long wavelength waves on the electromagnetic spectrum.
Small part of the electromagnetic spectrum that humans perceive with their eyes.
High energy, high frequency, short wavelength waves on the electromagnetic spectrum.
Choises:
Visible light waves
Gamma radiation
radio waves
this question is hard and i don't really understand it. can i have help. thank you
Answer:
Alpha particles carry a positive charge, beta particles carry a negative charge, and gamma rays are neutral. An alpha particle is made up of two protons and two neutrons bound together. Beta particles are high energy electrons. Gamma rays are waves of electromagnetic energy, or photons
Don't take your heart rate with your thumb because the thumb has it's own pulse.
Question 6 options:
True
False
Answer:
True
Explanation:
Do not use your thumb, because it has a pulse that you may feel.
which types of EM radiation from the sun are most likely to reach Earth's surface, waves with short wavelengths or those with long wavelengths? Explain.
Which types of EM waves can reach Earth's surface?
Most electromagnetic radiation from space is unable to reach the surface of the Earth. Radio frequencies, visible light and some ultraviolet light makes it to sea level. Astronomers can observe some infrared wavelengths by putting telescopes on mountain tops.
What will happen to the amount of force of an object if the mass of an object increases?
Answer: If you were too push a heavy item down a ramp, it would go faster than a lighter object because the heavier the object, the stronger the gravitational force.
Explanation:
UUUURGENT I NEED HELP I WILL GIVE BRAINLEST
Answer:
Due to force of gravity and the overlying weight of the skater
Explanation:
Give me brainliest and a like.Good luck
What do fossils provide evidence for?
A. the genetic similarities between living and extinct organisms
B. the history of life in the geologic past
C. why species became extinct in the past
D. developmental patterns of living organisms
Answer: B. the history of life in the geologic past
Explanation:
B. the history of life in the geologic past because fossils help us by telling what type of animals were alive back then ex ) a dinosaur fossil shows us what type of dinosaur it was
PLEASE MARK BRANILIEST
Which type of surface is best for absorbing sound waves?
A) glass
B) foam
C) plastic
D) rock
What happens to the density of a material if you have a larger piece of it?(1 point)
The density will be smaller because the mass remains the same as the volume increases.
The density will be smaller because the mass remains the same as the volume increases.
The density will be greater because the mass increases but the volume remains the same.
The density will be greater because the mass increases but the volume remains the same.
The density will remain the same because mass and volume will both increase in the same way.
The density will remain the same because mass and volume will both increase in the same way.
The density will remain the same because mass and volume will remain the same.
The density will remain the same because mass and volume will remain the same.
Answer:
The density is more?
Explanation:
hopefully its right
can someone help me with this graphic organizer
-BRAINILIEST WILL BE GIEVN!!!!
Answer:
There are many ways to explore careers firsthand but here are a few examples:
Explanation:
You could...
Job shadowGet an internshipFind a mentorVisit workplaces Take classes within your job target VolunteerHope this helps!
Answerooo
Explanation:
You could do it...
Job shadowing
Obtain an internship
Look for a mentor.
Pay visits to workplaces
Take lessons that will help you acquire a job.
Volunteer
PLEASE HELP ITS DUE TODAY ILL POST THE OTHER HALF
Please help
Please help
Please help
Answer:
wait for a miracle
Explanation:
ANSWER MAY VARY:)
In one to two sentences, identify the purpose of the roots in a plant and how a disease that harms the roots of a flowering plant would affect the plant’s ability to survive.
HELP ASAP 50 POINTS AND MARKING BRAINLIEST!!!!!!!!!!!!!!!!!!!!!
The purpose of the roots in the plants is to absorb nutrients.
.
, .
.
Which option is an example of reflection?
A) an echo of sound in a canyon
B) the sound of a siren changing
C) a rock making ripples in water
D) light shining through a window
Answer:
A
Explanation:
sound waves hit the canyon walls, then bounce back towards you. That's why you hear an echo
How does a low pressure system determine the weather in an area?
It causes the cool air to rise and warm up.
It decreases the chance of precipitation in the area.
It decreases the moisture in the air.
It forms clouds as the warm air rises and cools down.
Answer:
In a low-pressure zone, wind is circulated inwards and upwards rapidly. As a result, air rises and cools; clouds and precipitate are formed. Low air pressure produces unstable weather conditions like rain or storms.
Explanation:
Answer:
D)
Explanation:
The fossil record show that fossils occur in a particular order. What does this order tell us about life on Earth?
A.Life forms have become less diverse over time.
B.Life forms have changed over time.
C.Life forms represented by fossils are extinct.
D.No answer text provided.
E.Life forms have become simpler over time.
Answer:
B
Explanation:
Life forms change over time fossils show the evolution of animals for hundreds of millions of years, over time life has become more complicated.
what is visible light?
[MA]:
Wavelengths in the electromagnetic spectrum too short or too long to be detected by the human eye; e.g., ultraviolet and infrared light.
Writer's note: I just noticed there are answers below the question, sorry!
[xArtsy]
Which carries more energy-------Ultraviolet waves or infrared waves? Explain.
Answer:
Ultraviolet Waves
Explanation:
UV waves can carry energy at a more rapid rate than infrared waves.
Answer: Ultraviolet has more energy. Ultraviolet radiation has shorter waves than blue or violet light, and thus oscillates more rapidly and carries more energy per photon than visible light does.
Hope this helps!
What evidence suggests that the ancestors of whales once walked on land?
A.Whales breathe through lungs.
B.Scientists have found fossils of whale-like creature that had legs.
C. Whales have similar DNA to elephants.
D.Whales perform walking motions as they swim.
which statement is true about light?
A. Light bends around the corners of a medium.
b. light travels in a straight line but distorts in mediums.
C. light never travels in a straight line
Answer:
b. light travels in a straight line but distorts in mediums.
Horseshoe crabs, or Limulus polyphemus, are very common along the east coast of the US. Fossils of horseshoe crabs have revealed that they have changed very little in the past 300 million years. Which statement best explains why this is the case?
A.Horseshoe crabs have a low reproductive rate.
B.Horseshoe crabs need to change only if humans are present in their environment.
C.The horseshoe crab is well adapted to its environment. and its environment has not changed much in the last 300 million years.
D.Horseshoe crabs have a high mutation rate.
Which characteristic can be inherited?
freckles on the skin
the ability to play piano
the length of hair in a human
the appetite of a puppy
The fishing pole shown here is an example of a lever. Which statement describes the fishing pole's mechanical advantage?
Answer:
Explanation:
The person will exert a much larger force to take a fish out of the water than the fish itself weighs. The advantage of the fishing pole, however, is that it moves the fish a large distance, from the water to the boat or the shore.
Urgent i need help with these questions
Answer:
1. 25%
2. You can move the skater higher up to increase the potential energy.
3. The kinetic energy increases because there is more motion.
Explanation:
1. If the total kinetic and potential energy is 100%, and we know that the kinetic energy is 75%, then we can find the potential by finding the missing value of this equation. Potential energy + kinetic energy =total energy.
? + 75%=100%
2. The higher an object is, the more potential energy it has because of the increase of its gravitational energy.
3. When an object is higher, there is more potential energy. As the skater goes down, the potential energy decreases which in turn increases the kinetic energy.
WILL PICK BRAINLIEST!!!!!!!!!!!!!!
calculate-
On this model 40 AU = 1 meter.
A light year, the distance light travels in 1 year, is 63,240 AU
The nearest star is *Proxima Centauri is 4.2 light years.
i think im supposed to find the distance per meter or something
[tex]1 \times 12 = 63240 \sqrt{4.2} [/tex]
1x4<3=12
I am so so sorry again for how many questions there are!!
Calculate the Mechanical Advantage for the Inclined Plane (The second screenshot is for this question)
A 5-meter ramp lifts objects to a height of 0.75 meters. What is the Mechanical advantage of the ramp?
A mover uses a ramp to pull a 1000 N cart up to the floor of his truck, which is 0.8 meters high. If it takes a force of 200N to pull the cart, what is the length of the ramp?
Answer:
Weight of object = Wv = Mg
Weight along ramp = Wr = Wv sin θ
Mechanical advantage = Wv / Wr = 1 / sin θ = 1/.15 = 6.7
Sin θ = H / L = .75 / 5 = .15 θ = 8.6 deg
Note: M.A. = 5 / .75 = 6.7 because one has to move a weight 5 meters to raise it by .75 m
MHR (Maximum Heart Rate) is calculated by: 220 minus your age
Question 5 options:
True
False
How would you explain the differences between graphing x > 4 and x ≥ 4 to a peer who missed this lesson?
Answer in complete sentences.
Explanation:
x>4 that is x is GREATER THAN 4 but not equal to but it's its the other one than it mean that x can be 4 or more nothing less
Answer:
x > 4 means that the value of { x } is greater than 4 while x ≥ 4 means that the value of { x } is greater or equal to 4.
Explanation:
