Answer:
we have to make another question we maxed it out again lol
Explanation:
Answer:
A. Repeat the experiment ten times. Label the y-axis “Time” and the x-axis “Trial.” Plot the average time for all ten rats for each trial of the experiment.
Explanation:
help pls !!!!! which statement is true for chemical reactions but not for nuclear reactions?
Answer:
Explanation:
anyways
B) The nuclei of the atoms involved stay the same .
What are nuclear reactions ?
Nuclear Reactions are processes in which one or more nuclides are produced from a collision between two nuclei or one nucleus and a subatomic particle.
In a nuclear reactions the elements can change from one to another. Nuclei can break apart to form smaller elements. Nuclei can fuse together to make heavier elements. Neutrons can turn into protons and protons into neutrons. But this does not happen in a chemical reaction only composition of elements changes and rearrangement of the molecular or ionic structure of a substance take place in a chemical reaction
hence , correct answer is B) The nuclei of the atoms involved stay the same .
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1. A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can
cause the rug's color to fade over time. Can light from the sun cause the rug's color to fade?
a
No. Light is not a physical thing, so it cannot change physical things like rugs.
b
No. Light can only change things by warming them up, so it cannot cause the rug's color to
fade.
Yes. The rug can take in energy from the light, causing the rug's color to fade.
d
Yes. Light from the sun can pull energy out of the rug, causing the rug's color to fade.
Answer:
yes
Explanation:
the rug can take energy from the light causing the rug's color to fade
Yes, Kiara is right because the rug can take in energy from the Sun's light, thereby causing the rug's color to fade: C. Yes. The rug can take in energy from the light, causing the rug's color to fade.
The Sun is typically characterized by nuclear reactions that usually takes place or occur at its center, which eventually result in the release of radiant (heat) energy and electromagnetic radiation into planet Earth.
Although, these radiant (heat) energy and electromagnetic radiation from the Sun are essential and very important to life on planet Earth.
However, a disadvantage of radiant (heat) energy is that when taken in by conducting materials such as rugs, it causes their color to fade (change) over time.
In conclusion, Kiara is absolutely right in her thinking because light energy (sunlight) from the Sun can cause the rug's color to become faded over time.
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Randy used to have poor health. Recently, he has lost a lot of weight and has started feeling much better, but he doesn't know which of his life changes contributed to the improvement. Which change most likely helped Randy get better health?
Answer:
Losing weight?
Explanation:
That would make sense because thats the only thing mentioned
Answer:
He started getting a full night of restful sleep.
Explanation:
hope 04.01 quizlet
Describe two possibilities of what will happen to the universe in the future.
Answer:
technology will take over
Explanation:
technology was have a huge impact on our world , we will be active and we would have new technology that will help and will become a help in everyday lifestyle
I’ll give brainliest if you can answer the question in the picture and the question below
After the tuning fork a is vibrated, the tuning fork b is vibrated. The tuning fork b is vibrating because...
A. Resonance
B. Interference
C. Doppler effect
D. Phase
Answer:
the answer would be D if you agree
Explain what was ultimately responsible for London’s “killer fog” in 1952.
Answer:
possible answer from edge
Explanation:
After World War II the only coal available to burn residentially, either for cooking or warmth, was of poor quality and contained large amounts of contaminants that made its fumes toxic. So when millions of homes in London burned this low quality coal and the local atmosphere over and around London stagnated, there was nowhere for the fumes to go. This stagnation allowed the toxic coal fumes to build up until they became physically harmful to humans and animals.
Burning of low quality coal was ultimately responsible for London’s “killer fog” in 1952.
What is Coal?This is a type of sedimentary rock which is combustible and contain high amounts of carbon and hydrocarbon.
The low quality coal contained a lot of contaminants which was released into the atmosphere thereby creating the “killer fog” which adversely affected residents.
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pls help me with a and b ill mark u brainlist
Answer:
a) i) In the first image we can see that almost the whole island is covered with forest. While in the second one, we can see that near the edges of the island the amount of forest cover has ben decreased. This may be because is easier to cut the trees near the shore of the island.
ii) There are different motives to cut the trees, one may be to build constructions. People need to remove the trees in an area in order to be able to build in there. Also, the trees can be used in a lot of different ways as raw materials.
b) i) Less forest cover also means that there is a smaller habitable area for the local life (animals, insects, etc...). Then the animals need to be more "cramped", and this can affect greatly the life of them.
ii) There will be less food and fewer natural resources for the locals.
Can someone please help me?
Answer:
I think the sun is the answer
A rock is dropped from a height of 2.7m. How fast is it going when it hits the ground?
PLEASE HELP ME!!!
A box is pushed horizontally with 30N for 3m. How much work was done?
which of the following is a subsurface event takes place during the rock cycle
deposition
erosion
weathering
plate tectonics
Answer:
The answer is A. Cementing...
Explanation:
hope this helps
Answer:
plate tectonics
Explanation:
brainliest also 100% flvs
A box is 2 cm long, 3 cm wide, and 4 cm high. How many cubic centimeters of water can it hold?
(In other words, what is the volume? Don’t forget UNITS!)
Answer:
Explanation:
How many atoms does each element have in 2CaClO3?
1 calcium atom, 1 carbon atom, and three oxygen atoms, so 5 in total.
Question: A=2.70 and B=9.3, then A+B=
a) 12
b) 12.00
c) 12.0
d) None of these
Answer:
a) 12
Explanation:
The given variables are:
A = 2.70
B = 9.3
For addition, the rule states that you cannot be more precise than the least precise measurement given.
The least precise measurement is B = 9.3 and it has 2 significant numbers.
A + B = 2.70 + 9.3 = 12
which part of the picture shows evidence of matter scattering light waves on many diffrent directions
Answer:
A- The image of the moon on the waters surface is distorted.
Explanation:
A series of waves with decreasing wavelength labeled radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays from left to right as wavelength decreases. At visible light is at a place with colored bands crossing the waves with dotted lines down to a colored spectrum from red to blue labeled in nanometers from 700 to 400. Above the waves are a label Frequency with an arrow pointing left labeled decreased and an arrow pointing right labeled increasing. Topmost is a label Wavelength (meters) with an arrow pointing left labeled longer and an arrow pointing right labeled shorter. Use the image to rank the colors from the color that will refract the least to the color that will refract the most. Least Most
Answer:
Label A: red
Label B: yellow
Label C: green
Label D: blue
Label E: violet/purple
I think this should be correct. I'm sorry if I'm incorrect
Based on the degree of refraction from least to most refracted, the colors are as follows: Red, Orange, Yellow, Green, Blue, Indigo, Violet.
What is refraction of light?Refraction of light is the bending of light rays as they cross the boundary between two media of different densities.
White light consists of seven colors of light; Red, Orange, Yellow, Green, Blue, Indigo, Violet.
The red color has the shortest wavelength and is the least refracted while violet color has the longest wavelength and is most refracted.
Therefore, based on the degree of refraction from least to most refracted, the colors are as follows: Red, Orange, Yellow, Green, Blue, Indigo, Violet.
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Stan walks 10km west to the grocery store. He shops then walks back 10 km east back to his house What distance did he cover? What was his displacement?
Answer:
His displaceent is 0 km because he ends his walk where he started. The total distance of his walk is 20 km because he walks 10 km to the store + 10km back home.Question 15 (1 point
[01.03)
Which statement is true going
Oo
Ос
Gravity is the force of attraction between two dojeas with mask and is tecedent on the distance been these objes
Granty is the force that resesto dojects that have opposite charges. It is dependent upon the charges of the objec
Greity is a force that keeps dojects moving in space. The less the objects wegs, the former out in space gauty will pull the
Object
Gravity is the force of resistance to a change in position. The greater the distance been objects, the greater tis force will
Oo
Explanation:
The true statement about gravity is that it is the force of attraction between two objects with masses and also, based on the distance between these objects.
Gravity is a force of attraction.
The best scientific overview of the force of gravity is given by the Newton's law of universal gravitation which states that "the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them",
So, gravitational force of attraction is dependent on mass and the distance between two bodies.
The force that pulls falling objects toward Earth is called *
gravity
free fall
acceleration
air resistance
Answer:
Gravity
Explanation:
That's easy because gravity is the only thing that can pull us down that hard at that fast without anything helping it.
An object is 45.0 kg here on Earth. What is its mass on Jupiter if the acceleration
due to gravity on Jupiter is 24.79 m/s 2?
A.) 1.82 kg
B.) 45.0 kg
C.) 1120 kg
D.) 441 kg
Answer:
B. 45.0 kg
Explanation:
On earth the object has ;
Mass = 45 kg
acceleration = 9.81 m/s²
On Jupiter, acceleration is 24.79 m/s²
The mass of this object on Jupiter will be 45 kg. It will not change. Mass of an object will only change when you remove part of the object from it or add to it another part. The mass is the same on Earth and on Jupiter. However, due to increased acceleration on Jupiter , the weight will change/ increase because;
Weight = mass * acceleration
On Earth
Weight of the object will be : 45 * 9.81 = 441.45 kg
On Jupiter
Weight of the object will be : 45*24.79 =1115.55 kg
What is the formula for momentum? *
p = m/v
f = m x a
f = m/s
p = m x v
Answer:
momentum in a body can be calculated using
Momentum=Mass×Velosity
ie(p=m×v)
Back in their laboratory, the team of scientists carefully measure the changes in density of a freshwater sample as they decrease its temperature from 20°C to 0°C. Based on the data in the table, what effect does decreasing the temperature from 20°C to 4°C have on the sample’s density?
Answer: As the temperature of the water decreases from 20 degrees celsius to 4 degrees celsius, the density increases.
Explanation:
The correct answer to this question would be.
As the temperature of the water decreases from 20°C to 4°C, the density increases.
Where is the Long Head located?
Outside of the Arm
Inside of the Arm
On the Shoulder
Answer:
The biceps muscle is located at the front of your upper arm. The muscle has two tendons that attach it to the bones of the scapula bone of the shoulder and one tendon that attaches to the radius bone at the elbow. The tendons are tough strips of tissue that connect muscles to bones and allow us to move our limbs.
Explanation:
Glad i could help pls give brainliest and or thanks
A billiard ball collides with a second identical ball in an elastic head-on collision. What is the kinetic energy of the system after the collision compared with the kinetic energy before the collision
Answer:
Explanation:
From the question, we were made to understand that the collision between the two billiard balls was an elastic collision. Hence, an elastic collision is one in which the kinetic energy is conserved. Meaning the kinetic energy before the collision is still retained after the collision.
Kinetic energy before collision = kinetic energy after collision
1/2mv^2 = 1/2mv^2
There was no gain nor loss in energy
Answer:
unchanged
Explanation:
Explain how the Law of Conservation of Energy applies to the energy
transformations that occur from the outlet charger to the ringing phone.
Answer:
The mobile electric energy gets converted into chemical energy while charging.
Explanation:
According to the law of conservation of energy, no energy is destroyed when one form of energy is transformed to another in the process as energy cannot be created or destroyed. As a result, total amount of energy remains same before and after any kind of transformation.
Generally, lithium ion batteries are used in mobile phones. In such batteries, the electricity is stored in the ionic structure by the chemical changes.
The mobile electric energy gets converted into chemical energy while charging.
Choose the incorrect statement.
Report an
question 1
O Heat is a measure of how hot or how cold an
object is
O Heat flows from a substance of higher
temperature to a substance with a cooler
temperature.
O Heat is measured in units of calories or joules.
O Heat is the energy flow from two substances at
different temperatures.
Answer:
first one,heat is a measure of.........
A student lifts a 1.4-kg box of magazines vertically from rest with an upward force of 52.7 N. The distance of the lift is 1.6 meters. Find the
total work done on the box
-64.41
Answer:
The work done on the box is 21.952 Joules
Explanation:
The given parameters are;
The mass of the box of magazines, m = 1.4 kg
The upward force with which the student lifts the magazine = 52.7 N
The distance (height) of the lift, h = 1.6 meters
The work done on the box = The potential energy gained by the box of magazine, P. E.
Potential energy gained by elevation, P. E. = Mass, m × The acceleration due to gravity, g × Height, h
Where;
The acceleration due to gravity, g = 9.8 m/s²
∴ P. E. = m × g × h = 1.4 kg × 9.8 m/s^2 × 1.6 m = 21.952 Joules
The work done on the box = The potential energy gained by the box of magazine, P. E. = 21.952 Joules
The total work done on the box is 21.952 Joules
The workdone on the box is equal to the potential energy possessed by the body. Mathematically;
[tex]W=P.E=mgh[/tex]
m is the mass of the bodyg is the acceleration due to gravityh is the heightGiven the following parameters
m = 1.4kg
g = 9.8m/s²
h = 1.6m
Substitute the given parameters into the formula:
[tex]W = 1.4 \times 9.8 \timees 1.6\\W=21.952Joules[/tex]
Hence the total work done on the box is 21.952 Joules
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Light waves can be easily blocked but ______ waves pass through all substances? ( fill in the blank)
Three rocks with masses of 1 kg, 5 kg, and 10 kg fall from the same height.
Which of the following describes the inertia of these rocks?
i need the letters after the questions
Answer:
b d c a
Explanation:
