plsssssssss help me easy 6th grade science its about roller coasters

Plsssssssss Help Me Easy 6th Grade Science Its About Roller Coasters

Answers

Answer 1
Answer:
D
explanation:
i learned this four years ago.

Related Questions

why can't i tell my crush how i feel

Answers

You can, just tell them
Well to be honest there is no actually way to do it it’s just going for it with confidence and getting ready for the down side or good side you just never know

The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system?
A
respiratory

B
integumentary

C
excretory

D
immune
bonus question fredo bang or nba young boy

Answers

C. it’s the only one that makes sense .-.
Answer:
C
Explanation:
That’s the only one that actually connects to the question, every other answer is talking about a different function of the body.

DESPERATE WILL GIVE BRAINLIST AND THANKS
Which statement below best describes Gregor Mendel’s conclusions about genetics based on his pea plant experiments?

A. DNA is the biomolecule of life. Its structure is a double-helix and it is the blue print for the structure and function of an organism.

B. Each parent plant transmits certain factors to its offspring. These factors combine and determine the plant’s traits.

C. When two organisms reproduce, the offspring will generally result in a blending of the parent’s traits.

D. Mendel’s experiments ended up being inconclusive. Although he saw some patterns of inheritance, he was unable to determine the “how” behind it.

Answers

Answer:

B is the best answer.

Explanation:

A is off-topic considering the pea plant experiments, C is close, but too general and can be proven wrong, and D is just flat out wrong. The process of elimination leaves B to be the best answer.

Please help ASAP please

Answers

Answer:

Explanat WRITE A ONE PAGE ESSAY TO EXPLAIN THE AUTHOR'S PURPOSE IN WRITING HOM SMART ARE ANIMAL

I need help as fast as possible please
Will mark BRAINLIST and will give thanks only to correct answers
Thank you so much!

Answers

Answer:

A. enlarged or larger than the object

B. Erect image or not-inverted

C. Virtual

Explanation:

In the given situation, the object is placed between pole and focus of a concave mirror.

So, the image will be formed on the right side of the mirror having size larger than the object; the image will be erect image which means image will appear right side up; and the image will be virtual because image is formed behind the mirror due to divergence of light rays.

Hence, the correct answers are:

"A. enlarged or larger than the object

B. Erect image or not-inverted

C. Virtual"

What is the definition of the half-life of a radioactive isotope?
A. The time it takes for half the parent nuclei in a sample to become
daughter nuclei
B. The time it takes for all the parent nuclei in a sample to become
daughter nuclei
C. The time it takes for all the daughter nuclei in a sarnple to become
parent nuclei
D. The time it takes for half the daughter nuclei in a sample to
become parent nuclei

Answers

Answer:

A

Explanation:

The amount of time necessary for half of anything to go through a process, such the amount of time needed for half of a radioactive substance's atoms to decay. Thus, option A is correct.

What half-life of a radioactive isotope?

The period of time it takes for one-half of a radioactive isotope to decay is known as the half-life. An individual radioactive isotope's half-life is unaffected by environmental factors and is independent of the isotope's starting concentration.

Radiation emission stops after an atom achieves energy stability through radiation. A radionuclide's concentration falls over time, and its radioactivity declines. A (physical) half-life is the length of time required for radioactivity to degrade and diminish to half.

Therefore, The time it takes for half the parent nuclei in a sample to become daughter nuclei.

Learn more about isotope here:

https://brainly.com/question/28039996

#SPJ5

3. Is the relationship between the gravitational force and the mass directly proportional or
inversely proportional?

Answers

Answer:

Directly Proportional

Explanation:

Gravitational force can be calculated with the equation F = g(m1 * m2)/ r^2

So if we increase mass, force will also increase because mass is in the numerator.

the law of conservation of momentum states that, if left alone what happens to the total momentum of two interacting objects that make up a system

Answers

Answer:

It remains the same

Explanation:

At any point in time the total momentum of two objects interacting remains the same

This follows the laws of space(space is uniform)

Answer:

(Question) Which of these quantities is a vector?

(Answer) momentum

(Question) What is the representation of the momentum vector?

(Answer) an arrow

(Question) What is the formula for the momentum p?

(Answer) p=m⋅v

(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?

(Answer) The total momentum is conserved.

(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?

(Answer) 6.0

Explanation:

just did the quick check UwU

If an object is at rest on an inclined plane, which of the following forces is greatest?

Answers

Answer:

which of the following what, you didn't include the options

pls answer fast and correct i will give brainlest who ever gets it correct



The boy’s skateboard trips on the stairs and comes to a stop. This shows inertia because:

Answers

The boys body will continue to move in a forward motion, the stairs an an will make the skateboard come to a complete stop because the force of the stairs is much greater, this makes in an unbalanced force. This is and example of inertia of motion.

Alex rides on a bike that starts from rest and accelerates to a speed of 20 m/s in 8 seconds. What is Alex’s acceleration?

Answers

Answer:

20m/s

Explanation:

Alex's acceleration is also Alex speed

You and your friend see a ball rolling across the floor to the right. Your friend says
that because it is moving to the right, it must have a net force on it pushing it to
the right. Do you agree with her? Why or why not?
Your answer

Answers

Answer:

unforturnitly

Explanation:

step unstepable

If a force of 0.05 N acts on a body of mass 100 grams. Determine the acceleration at which that body moves.​

Answers

Newton’s second law is a=F/m this is what we will be using to solve this
However first you need to convert g to kg
100g= 0.1kg

0.05/0.1=0.5 m/s^2

Answer:

a=f/m=0.05/0.1kg

Explanation:

calculate it

hope I helped

pls help me 6th grade science second two pics are the possible answers

Answers

Answer:

C

Explanation:

Plotting the data points would get the graph closest to C

Please write in complete sentences.

How does density affect refraction?

Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from the air through a diamond.
answer both questions

Answers

(1.) The Phenomena of Refraction Occurs when a Ray (Here Light) enters a Relatively Denser or Rarer Medium and Due to the Change in Density, the Speed of the Incident Ray Decreases or Increases Respectively.

(2.) If a light ray projected through a diamond, the light would refract drastically.

FastFood Nation author?

Who is the author of FastFood Nation

Answers

Answer:

 Eric Schlosser

Explanation:

I am 100% sure this is the right answer hope it helped:)

A mouse ran 25.45 meters in 11 seconds, stopped for 5 seconds to eat a piece of cheese, ran 2.5 meters in 1.2 seconds to hide behind a shelf, and finally ran another 9 seconds a distance of 15 meters to its home. Calculate the average speed of the mouse in m/s.

Answers

Okie so I can see it on tomorrow morning lol lol

7 points
Lynn is walking up a hill with a horizontal distance of 20m and a vertical
distance of 12m. What is her displacement at the top?*
16.9m
23.3m
26.4m
34.5m
Other:

Answers

Answer:

displacement = 23.32m___________________FOLLOW ME

What word
When an object is vibrating, we say that it has energy in its kinetic energy___
completes the sentence?

Answers

Answer:

that is which produces Sound

Answer:

The right answer is "stores"

Explanation:

All objects that are moving will have some energy in their kinetic energy store.

How long does it take for Earth to make one rotation on its axis?
OA.
1 year
ОВ.
1 day
OC.
1 hour
OD
1 month

Answers

Explanation:

ob 1 day

1day is the answer

The answer is one day

Preview this picture of a roller coaster. Does it make you feel safe? How does the picture reinforce the idea of roller coasters being safe as stated in the article?

Answers

Answer: The coaster tracks serve to channel this force — they control the way the coaster cars fall. ... If the tracks slope down, gravity pulls the front of the car toward the ground, so it accelerates. If the tracks tilt-up, gravity applies a downward force on the back of the coaster, so it decelerates.

Explanation: They may be safe though!

How many complete wavelengths are shown in this image? Do not count any partial wavelengths.
7
4
1
3

Answers

Answer:3

Explanation: I just took the quiz

The distance between two successive troughs or crests is known as the wavelength There are 3 complete wavelengths are shown in this image.

What is wavelength?

The distance between two successive troughs or crests is known as the wavelength.  The peak of the wave is the highest point, while the trough is the lowest.

The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.

The length of a wave is measured in its propagation direction. The wavelength is measured in meters, centimeters, nanometres, and other units since it is a distance measurement.

Hence Option D is correct. There are 3 complete wavelengths are shown in this image.

To learn more about the wavelength refer to the link;

brainly.com/question/7143261

help = brainlist pls

Answers

Answer:

A) the liquid particals move slower

Explanation:

vapor has a higher temp and have more energy than liquid so it's not c or d. and liquid has a lower boiling point than vapor

What is the Eg, Ek, and Ediss of a skier starting at an elevation of 40m and ending at 0m elevation

Answers

Answer:

 E_g = m 392 J,      Ek = m 392

Explanation:

Mechanical energy is a very important concept since if the system does not have friction it remains constant

the potential energy of a system is

          E_g = U = m g (y2 - i)

          E_g = m 9.8 (40 -0)

          E_g = m 392 J

The kinetic energy for this system assuming it started from rest

          E_k = K = ½ m v2

how mechanical energy is conserved

         E_g = E_k

         Ek = m 392

Which term describes the radiation produced by alpha decay?
A. A beta particle
B. An electromagnetic wave
C. A helium nucleus
D. An electron

Answers

Answer:

C. Helium nucleus

Explanation:

During alpha decay, a radioactive atom releases an alpha particle that is equivalent to the nucleus of a helium atom.

Answer:

Person above me is correct C. Helium Necleus

Explanation:

A wire in a circuit carries a current of 0.9 A.

Calculate the quantity of charge that flows through the wire in 50 s.

Give the correct unit with your answer.

Use the equation: charge = current x time

Answers

Answer:

45coulombs

Explanation:

Using your equation current=0.9 & time=50secs multiply and your answer is 45. Hope the answer is good enough for u

Doctors use radioactive sources as tracers for medical imaging. The table below shows the properties
of some radioactive sources. Which source would be the best to use for a tracer that must be injected
into the body?
Enter your answer as a number
Radioactive source
Type(s) of
radiation emitted
Half-life
1
gamma
7 weeks
2
beta
3 days
12 minutes
3
alpha and gamma
4
gamma
23 minutes
5
alpha
4 hours

Answers

Answer:

Technetium.

Explanation:

Tc is a very versatile radioisotope, and is the most commonly used radioisotope tracer in medicine. It is easy to produce in a technetium-99m generator, by decay of 99Mo. ... Tc decays by gamma emission, with a half-life: 6.01 hours.

Answer:

its the fourth one

You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?

pls show equation

Answers

Answer:

1/2 seconds per meter

Explanation:

The number of seconds is going to be x

45 ÷ 90 = x

x = 1/2

I mean there are more complicated ways to do it, but this is the easy one :)

Answer:

1/2 per meter

Explanation:

you've been tired and lethargy what are two possible reasons?

Answers

Explanation:

physical exertion.

lack of physical activity.

lack of sleep.

being overweight or obese.

periods of emotional stress.

boredom.

grief.

taking certain medications, such as antidepressants or sedatives.

Which of these is not a natural source of radiation?
A) Food and drink
B) medical x-rays
C) Cosmic rays

Answers

Answer:

Food and drink

Explanation:

theoretically, you can heat object to a point in which they'll radiate rays, but not food and drinks

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