Answer:
A embryo's, Whales have small back limbs which disappear before birth.
Explanation:
There are lots of evidence in a whale's body and biology suggesting its ancestors lived on land. They have paddle-shaped flippers that encase hand bones with five 'fingers,' and they breathe air and feed their young with their own milk.
Can someone help with this?
--
I don't understand what to do for this part
Answer:
You would turn the decimals into a percent, then you would subtract that number from 100. Put that into decimal form.
For example, aluminum’s percent error would %10
Explanation:
HELP NEED THIS DONE BEFORE 9:45!!!!!!!!!!!!!!!! WILL GIVE 100 POINTS AND BRAILIEST IF DONE BEFORE 9:45!!!!!!!!!!!!!
Answer:
1.) 742.57 m/s
2.) 132
3.) 4.375 hours
4.) 1080
5.) 81.6 km per hour
6.) 20 min = 1,200 secs1000 / 1200
Explanation:
Your Welcome!
Answer:
1.) 742.57 m/s
2.) 132 m
3.) 4.375 hours
4.) 1080 m
5.) 81.6 km per hour
6.) 20 min = 1,200 secs1000 / 1200
Explanation:
**Brainliest would be appreciated**
What is the working resistance of a bulb that takes a current of 0.25 A when it is connected to 220V mains supply?
Answer:
880 Ω (Ohms)
Explanation:
To calculate Resistance from Potential Difference (Volts) and Current (Amps), you use the equation R = V/I
So,
R = 220/0.25
R= 880
What do you think happens to the oxygenated blood after it enters the left ventricle?
Explanation:
The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
Estimate the length of a baseball bat and mass of a baseball in SI units. How can you check how close your estimates are?
Answer: You need the mass of the bat and the length in some-type of units.
Explanation:
Why does the Earth experience two high and two low tides each day?
The moon orbits the Earth twice as fast as the sun.
The moon orbits the Earth completely once per day.
The moon and the sun create their own high and low tides.
The moon passes over the same location above the Earth's surface twice per day.
What happens to an object if the total of the forces acting on it are greater than zero?
Select one:
Nothing will happen to the object.
The object’s motion will change.
The object will move forward.
The object’s motion will remain the same.
How can speed be described?
Select one:
The mass multiplied by the acceleration of an object.
The force on an object divided by the mass of an object.
The distance an object travels at a certain velocity.
The distance travelled by an object in a certain time.
Answer:
The mass multiplied by the acceleration of an object.
Explanation:
Please give brainliest, It's not much, but it's honest work.
How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.
Answer:
i need more information give me more pictures
Explanation:
lol
Answer:
the data will support my theory if the results are right for my hypothisis
Explanation:
Match the term with its description.
Acid:
Base:
Ions:
pH:
Definition:
A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water
Used to measure the pH of substances by determining their hydrogen ion concentration
A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
A compound that increases hydrogen ions (H+) when it is dissolved in a solution
A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water= pH
A compound that increases hydroxide ions (OH−) when it is dissolved in a solution= Acid
A compound that increases hydrogen ions (H+) when it is dissolved in a solution= ions
Used to measure the pH of substances by determining their hydrogen ion concentration= base
Answer: pH goes with A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water
base goes with A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
ions goes with Used to measure the pH of substances by determining their hydrogen ion concentration
acid goes with A compound that increases hydrogen ions (H+) when it is dissolved in a solution
Explanation: i took the test and got it right
How is a mixture such as a plate of pasta different from a mixture such as air
Answer:
Well there is a lot of differences between the two. Its called homogeneous and Heterogeneous mixtures. Homogeneous mixtures are all the substances are evenly distributed throughout the mixture (salt water, air, blood). Heterogeneous mixtures are the substances that are not evenly distributed (chocolate chip cookies, pizza, rocks). So Pasta with sauce and meatballs is heterogeneous and air is homogeneous
HOPE THIS HELPS HAVE A GREAT DAY!!~
Explanation:
Which shows the classification of a human?
Animalia, Arthropoda, Insecta, Lepidoptera, Nymphalidae, Morpho, Morpho Peleides
Animalia, Chordata, Amphibia, Anura, Hlidae, Hyla, Hyla cinerea
Animalia, Chordata, Mammalia, Primate, Hominidae, Homo, Homo sapiens
Animalia, Chordata, Mammalia, Carnivora, Canidae, Canis, Canis lupis
many points.
ALSO BRAINLIEST IS HERE!
THIS IS SCIENCE If you answer this please make two sides or list which go on each one whether it is Terrestrial or Jovian. I will give brainliest!
Compare terrestrial and Jovian planets below by writing each characteristic in the correct
category.
• less massive
• more massive
• many moons
• smaller volume
• zero to two moons
• farther from the Sun
• some contain ring systems
• larger volume
• closer to the Sun
• composed mostly of gases
• longer revolutionary period
• shorter revolutionary period
• composed of silicate rocks and metals
• geologic features like craters and mountains
Answer:
geologic features like craters and mountains
Explanation:
when i did this my teacher said it was ok
water evaporates and becomes a gas when from the sun
Answer:
water vapour
Explanation:
water vapour condents to water/rain
Which two substances are among the four major types of organic compounds made by living things?
A. Phosphates
B. Nitrates
C. Proteins
D. Lipids
Answer:
Lupids
Explanation:
D:)
Explain the water cycle in your own words. make sure u tell the steps in order
Answer:
Collection - Evaporation - Condensation - Precipitation
Explanation:
The Water cycle is a series of continuous events that cause rain
i need help w this..
A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.
Which statement best describes the relationship between the sun and moon during a spring tide?
The sun and the moon are aligned.
The sun and the moon are revolving around the Earth at the same speed.
The sun and the moon are at 45° angles to each other.
The sun and the moon are at 90° angles to each other.
Answer:
i think c
Explanation:
can someone help me w this? A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.
Water cycle stages: Evaporation, Transpiration, Condensation, Precipitation
Edward took Charlie's pencil
Oxygenated blood leaves the lungs and enters which heart chamber?
left atrium
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Which of these shows the common stages of growth for a flowering plant?
leaves, seed, shoot, root system, stem or trunk, flowers
stem or trunk, root system, seed, shoot, leaves, flowers
seed, shoot, root system, stem or trunk, leaves, flowers
flower, seed, shoot, stem or trunk, root system, leaves
Answer:
everything because every part are equally responsible for the growth of plant
what are some consequences of water pollution?
Answer:
At the bottom
Explanation:
-Destruction of aquatic flora and fauna
-Economic downturns
-serious health problems
And more!! We need to beware of our actions
The brain, spinal cord, and nerves are all major organs of the ___ system.
Answer:
nervous system
Explanation:
nervous system
nervous systemsystemsystem
A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
nervous system > musculoskeletal system > circulatory system > nervous system
musculoskeletal system > nervous system > circulatory system > musculoskeletal system
musculoskeletal system > circulatory system > musculoskeletal system > nervous system
nervous system > musculoskeletal system > nervous system > musculoskeletal system
Answer:
nervous system>musculoskletal system>circulatory system>nervous system
Explanation:
A foil boat measures 4.0cm by 5.0cm and has a mass of 100.0g. If you put the boat in water, how far will it sink? (Recall the density of water is 1.0 g/mL) (answer with a number; units are cm)
Answer:
Let the volume of the block of wood be
V
c
m
3
and its density be
d
w
g
c
m
−
3
So the weight of the block
=
V
d
w
g
dyne, where g is the acceleration due to gravity
=
980
c
m
s
−
2
The block floats in liquid of density
0.8
g
c
m
−
3
with
1
4
t
h
of its volume submerged.So the upward buoyant force acting on the block is the weight of displaced liquid
=
1
4
V
×
0.8
×
g
dyne.
Hence by cindition of floatation
V
×
d
w
×
g
=
1
4
×
V
×
0.8
×
g
⇒
d
w
=
0.2
g
c
m
-3
,
Now let the density of oil be
d
o
g
c
m
-3
The block floats in oil with 60% of its volume submerged.So the buoyant force balancing the weight of the block is the weight of displaced oil =
60
%
×
V
×
d
o
×
g
dyne
Now applying the condition of floatation we get
60
%
×
V
×
d
o
×
g
=
V
×
d
w
×
g
⇒
60
100
×
V
×
d
o
×
g
=
V
×
0.2
×
g
⇒
d
o
=
0.2
×
10
6
=
1
3
=
0.33
g
c
m
−
3
Explanation:
when salt dissolves into water does it change its state
Answer:
no it doesn't change back
fine here When you dissolve salt in water, the sodium chloride dissociates in Na + ions and Cl - ions, which may be written as a chemical equation : NaCl (s) → Na + (aq) + Cl - (aq) Therefore, dissolving salt in water is a chemical change. The reactant (sodium chloride, or NaCl) is different from the products (sodium cation and chlorine anion).
Please help!!
What do scientists do when they want to name a new organism?
all of the above
They see how the organism is similar to other organisms.
They see if the organism has the characteristics of an animal or plant.
They look at what makes the organism unique.
Answer:
All of the above
Explanation:
I believe all three are true. They see how the organism is similar to other organisms. They see if the organism has the characteristics of an animal or plant. They look at what makes the organism unique.
What happens to an object if the total of the forces acting on it are greater than zero?
Select one:
Nothing will happen to the object.
The object’s motion will change.
The object will move forward.
The object’s motion will remain the same.
Which two substances are among the four major types of organic compounds made by living things?
A. Phosphates
B. Nitrates
C. Proteins
D. Lipids
Answer:
Lipids
Explanation:
D:)
Answer:
Lipids and Proteins
Explanation:
Hope this helps <3
the figure shows the great ocean conveyor belt. which best describes what this model represents?
A. The model shows how ocean currents change the salinity of water.
B. the model shows how ocean currents move heat energy around earth
C. the model shows how salinity of water affects its density
D. the model shows how the density of water differs between the north Atlantic and other parts of the ocean.
Answer:
d
Explanation:
The ocean conveyor belt shows the movement of the oceanic water and the salinity. The model represents the density of the water in different regions of the world. Thus, option d is correct.
What are ocean conveyor belts?Ocean conveyor belts are the oceanic current movement in their oceans across others and how the water moves across the water bodies across the globe.
The model shows that high salinity water gets heavy and sinks in the ocean of North Atlantic but the water of the Indian and the pacific oceans are less saline and remains at the surface.
Therefore, option D. the water differs in oceans based on density.
Learn more about ocean conveyor belts here:
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