Which statement is true?
A. sound waves and light waves travel at the same speed
B. sound waves and light waves do not travel
C. sound waves travel faster than light waves
D. sound waves travel slower than light waves
Answer:
I think the answer is no C
3. Myth: Tigers and goldfish are not related.
o Fact:
o Evidence:
PLS HELP ME JUST DO IT
Answer: They are not related
Explanation: All living things have the same way of transferring genetic information, trough the DNA molecule.
what is the body*s thrid line of defense
Answer:
Immune response
Explanation:
Any DBZ fans??????????????????????//
??????????????
Answer:
ummmmmmmmmm what's that???
Answer:
Yessir My Guy
Explanation:
Big Fan of DBZ
Which of the following is true about ecological succession?
Succession leads to equilibrium in an ecosystem
Succession prevents ecosystems from reaching equilibrium
There is no relationship
Succession and equilibrium are the same thing
what is the correct answer free brainly
help asap please help no links
Answer:
Food or Sun
Explanation:
I'm not sure if it's food or sun, but try both
Jamal has a sample of a substance and was asked to determine the density of this substance. He measured the mass to be 20g and volume to be 5cm3. What is the density of the sample?
A. 4 g/cm3
B. 0.25 g/cm3
C. 10 g/cm3
D. 100 g/cm3
Answer:
A
Explanation:
m=20g
V=5cm³
p=m/V=20/5=4
Give the scientific names and describe three polymers used in engineering.
Answer:
Synthetic polymers are human-made polymers, often derived from petroleum oil. From the utility point of view they can be classified into three main categories: thermoplastics, elastomers and synthetic fibers. They are commonly found in a variety of products worldwide.
Explanation:
Cell mutations within a DNA sequence are...
Answer:
a natural processes that produce genetic diversity.
Explanation:
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEE
Help me, no links, no i don't knows. reading science sheet
Answer:
Heat is a form of energy that moves from hot things to cold things. In other words, heat is energy that flows from objects with a high temperature. Temperature is the average kinetic energy of the particles in an object and is measured using a thermometer.
Heat can move from object to object in three ways. One way that heat flows is called conduction, which occurs when two objects are touching.
In conduction, the particles in the high temperature object are vibrating quickly compared to the low temperature object. When the particles in the high temperature object bump into the particles in the low temperature object, the low temperature object's particles begin to vibrate more quickly. Another form of heat transfer is convection, which occurs in liquids and gases. In convection, the part of the liquid or gas with high temperature is less dense than the part with low temperature so the high temperature parts rise and the low temperature parts sink.
In both conduction and convection, heat is transferred through a material. However, heat energy can also travel through empty space in a third way called radiation, which is how heat travels from the sun to the Earth.
You are planning an investigation that explores properties of matter.
Which of the following will help you discover a physical property?
Experiment: place a powder into a beaker that contains a liquid
Result: the beaker gets hotter
Experiment: place a powder into a beaker that contains a liquid
Result: the solid dissolves into the liquid
Experiment: place a powder into a beaker that contains a liquid
Result: the mixture begins to fizz and bubble
Experiment: place a powder into a beaker that contains a liquid
Result: the mixture catches fire and burns down the lab
Answer:
Placing a powder into a beaker that contains liquid, resulting the beaker to get hotter.
Explanation:
Physical property is something that you can observe that does not affect the mixture/solution/substance, and that includes temperature
Which of the following is true about metallic bonding?
A. They dissolve in water
B. Found in metals; holds metal atoms together very strongly
C. Formed between nonmetallic elements
Answer:
I think the answer is option B
Which form of heat transfer is letter C in the image below pointing to?
Answer:
Radiation
Explanation:
Radiation is when heat comes off of the item that is buring.
A. amplitude
B. frequency
C. pitch
D. speed
PLEASE HELP! THIS IS DUE VERY SOON! Whats a few examples of comparing and contrasting solutions with different concentrations of a solute? It's for my science class. I really need help.
How much carbon (C) is in 1.46 × 1022 atoms
of carbon?
Answer:
1492.12
Explanation:
What do you know about the sun's motion based on the nebular hypothesis model?
a
There is not relationship between planetary movement and the sun.
b
The faster the sun moves, the faster the planets travel in their orbits.
c
The sun and planets both move in the same orbits
d
The sun rotates in the same direction as the planets move around the sun
Earth’s atmosphere contains the element oxygen in two different forms. The chemical formula for oxygen gas is O2. The chemical formula for ozone gas is O3. How does the structure of oxygen gas differ from that of ozone?
I need an explanation and i need it today, thanks!
Answer:
Ozone is a molecule with three oxygen molecules.It is in the upper atmosphere and it protects living organisms by keeping UV rays from reaching the earth's surface. Ozone (O3) is a triatomic, molecule, consisting of three oxygen atoms. ... O3 is the formula for ozone. It has three oxygen atoms.
Explanation:
My brain
In the structure of oxygen molecule, the two oxygen atoms are held by a double bond while in ozone, three oxygen atoms are held by two equivalent bonds of intermediate bond lengths to a central oxygen atom,
In the molecule O2, we have two oxygen atoms connected to each other by a double bond. The bond order in the this molecule is 2 as shown in the image attached to this answer. The bond lengths in this bond correspond exactly to that of an O=O double bond.
In the molecule O3, we can see that there are three oxygen atoms. The central oxygen atom has two other oxygen atoms attached to it. The bond lengths observed in ozone are intermediate between those of a pure double or pure single bond.
The reason behind this is resonance involving the oxygen atoms.
Learn more: https://brainly.com/question/1121418
Can someone plz help me
Why do we see evidence of impact craters on terrestrial objects, but not on outer planets?
a
Terrestrial objects have solid surfaces while outer planets do not
b
Outer planets have solid surfaces while terrestrial objects do not
c
Terrestrial objects have a stronger gravitational pull
d
Outer planets have a stronger gravitational pull
(Please help ASAP I will mark brainliest!! (: )Which of the following describes what happens when a cell uses energy to transport something across the cell membrane?
1.osmosis
2.diffusion
3.passive transport
4.active transport
Answer: 4. Active Transport
4. is the answer, or not dont take my word for it.
Would you recommend your friend build a digester for their farm? Why or why not?
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A N S W E R
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Yes :
If my friend would like to conserve heat or conduct electricity for houses, then yes!
Hope this helped, love! ☆☆ ☆
Which form of heat transfer is letter A in the image below pointing to?
Answer:
convection
Explanation:
hot less dense water rises, water cools and become more dense and sinks creating a convection current.
If 46 grams of Na and 71 grams of CI2 react completely, what is the total mass of NaCI produced?
How many atoms of each element are in 2C(NO_2)_2?
1. What is different about the way molecules move in liquids?
2. What is different about the way molecules move in gases?
identify 3 energy resources and indicate if each one is renewable or non renewable
this is for a very important exam that I have, I hope you can answer :)
1. write a sentence that describes how the food changes in the stomach.
2. write a sentence that describes how the food changes in the small intestine.
3. explain what happens to digested food in the small intestine
4. write a sentence that describes what happens to digested food in the cell.
Explanation:
This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.
The density of the material a light ray travels through effects the speed of the light waves.
True
False