Answer:
Hypothesis: IF the weight is lowered, THEN the pendulum will move faster
Independent variable: Weight on the end of pendulum
Dependent variable: Speed of the pendulum
Constant: Same pendulum, same stopwatch
Control group: when the weight is moved to its lowest position.
Explanation:
- Hypothesis is a testable explanation given to proffer solution to an observed problem or answer a scientific question. In this investigation, Donna thinks that the pendulum will move faster when the weight is lowered. Hence, Donna's hypothesis is IF the weight is lowered, THEN the pendulum will move faster.
- Independent variable is the variable that is changed or manipulated in an experiment. In this experiment, WEIGHT on the end of pendulum is the independent variable.
- Dependent variable is the variable that is measured or recorded in an experiment. In this case, the dependent variable is the SPEED of the pendulum.
- Constant is the variable that is kept unchanged for all groups throughout the experiment. In this experiment, the constants are Same pendulum used, same stopwatch
- Control group is the group that doesn't receive the experimental treatment in an experiment. In this case, the control is when the weight is moved to its lowest position.
if your fathers dominant gene was blond hair, but your mother's dominant gene was brown hair, what would the Childs hair color be?
Answer:
Brown Or a Hazel color because a lot of kids come out with brown/hazel hair so I'm pretty sure Brown Or Hazel color
Explanation:
Ok
Observe: Click Reset. Move the Initial cell volume slider back and forth. How does the initial cell volume affect the solute concentrations inside and outside the cell?
Clouds form when air is ? A) swirled by wind. B) heated by the sun. turned into ozone. D) transpired by plants.
Answer: transpired
Explanation: PLEASE GIVE BRAINLIEST IT HELPS ALOT
Answer: heated by the sun
Explanation:
When the Sun warms the Earth, warm air rises into the atmosphere. As it rises, it expands and cools. Water vapor condenses out of the cool air to form a cloud.
PLEASE ANSWER THESE QUESTIONS COMPLETELY!!! WILL MARK BRAINLIEST!!!
DOC 1 Questions:
A. Is the suspected father actually the father of this child?
B. How do you know?
Answer:
He is not the father
Explanation:
As it says, the DNA matches up half of the time. The mother and child have 2/4 markers lined up, while the suspected father has no similar geonomes.
During meiosis, chromosome pairs randomly line up along each side of the cell equator. This arrangement mixes up the chromosomal combinations, which _______.
helps ensure reproductive success.
helps maintain all the previous generation's characteristics.
helps create and maintain genetic diversity.
helps ensure an equal number of males and females in the next generation.
Answer: C is the answer
do some research about the topic
Which statement describes a histogram?
A.It shows a line of best fit
B.It shows how an independent variable affects a dependent variable.
c.It shows a frequency distribution
D.It shows data as a proportion of a whole
Answer:
c
Explanation:
All of the following contain only glucose EXCEPT
what are the answer choices
The park is able to support maximum population of 4,500 bison. The bison began to migrate when the population eschew 4,000 because ofcompetition for food . If the current population size of bison is 3,652 and the maximum growth rate of the population is 0.28 calculate the population size after one year
Answer
Nt= 698.65
Explanation:
Due to technical problems, the complete explanation for the answer is as an attached file.
(7th grade question abt rocks...again)
A rock's texture gives a geologist clues about how a rock is formed. What can be inferred about the processes by which this rock formed?
A-The rock formed through the slow cooling of magma below ground.
B-The rock formed through the rapid cooling of lava above ground.
C-The rock formed through the processes of compaction and cementation.
D-The rock formed through the processes of pressure and heating
Do offspring receive Chromosomes from their parent? explain
Answer:
Yes
Explanation:
Your “genes”, or genetics, are what make you who you are. Chromosomes determine what gender a person is and what they’re like (birth defects).
What will happen to plants that are kept in the dark?
Answer:
they die
Explanation:
PLEAE HELP ME ASAP!! I need help
Answer:
3
i think
Explanation:
When you pour liquid in a test tube, the edges of the water curve upward. This is an example of
Answer:
Explanation:
When water is poured in a test tube, all the water goes to the bottom, because of gravity. When it all goes to the bottom, some of the molecules get pushed out of the way, especially in a thin, long container ( like a test tube)
The chemical formula for sodium sulfate is Na2SO4. How many sulfur atoms are in the formula for sodium sulfate?
(Please put in the comments cuz it wont let me see answers)
If distance=rate x time, which of the following must also be true?
A- rate= distance x time
B- time= distance/rate
C- distance= rate/time
D- time= rate/distance
If distance = rate x time
then,
Time = Distance/Rate
Hence, Option B is correct.
Time is directly proportional to distance.
What is meant by Rate?The ratio of two related numbers expressed in several units is known as a rate in mathematics. If one of these numbers is used as the ratio's denominator and it is assumed that this quantity may be modified in a predictable way (i.e., is an independent variable), then the numerator of the ratio represents the rate of change in the other (dependent) variable.Speed, heart rate, and flux are examples of common rates that are expressed as "per unit of time." Exchange rates, literacy rates, and electric field are a few ratios that don't need time as the denominator (in volts per meter).A rate that is defined using two numbers of the same units will provide a dimensionless quantity that can be stated as a percentage, fraction, or multiple. Examples of these rates include tax rates and literacy rates.To learn more about Rate, refer to:
https://brainly.com/question/1090517
#SPJ2
what things humans do in the flower garden to alter the abiotic elements of the ecosystem?
What is the function of the excretory system?
remove waste
break down food
respiration
transport nutrients
Answer:
The excretory system removes waste
Which two scientists incorrectly named the compound?
A. Adele and Halley
B. Ethel and Kate
C. Kate and Audrey
✓ D. Audrey and Ethel
Answer: D
Explanation:
The series of steps in which a large fish eats a smaller fish that has eaten algae is a
Answer: It is a food chain
Explanation: A series of steps including species consuming another in a direct chain is defined as a food chain
What is the main function of vacuoles?
______ Process of taking material into the cell by means of infoldings, or pockets of the cell membrane. This occuers when taking in ______ molecules, clumps of food or whole cells.
Answer: Endocytosis, more
May not be right but ik the first one may be
Explanation:
I really need help with this one ASAP!!!
Explain why volcanoes form at both convergent plate boundaries and divergent plate boundaries.
Answer:
Volcanoes often form along tectonic plate boundaries where oceanic plates sink beneath other plates. As a plate sinks deep into a subduction zone, it will start to heat and melt, forming something called magma. Volcanoes can also be created near tectonic boundaries where plates pull apart. This allows magma to rise up from the mantle.
Explanation:
^
Plants need carbon dioxide in order to survive plant get this gas from blank which is something all organisms need
Answer:
All organisms need air. There are organisms called anaerobic organisms that don’t need oxygen, but all organisms need air.
Explanation:
Answer:
air
Explanation:
Why are plants in the alpine biome typically low growing?
a
Answer:
They have limited access to nutrients
Explanation:
I guess you forgot to but the answer choices, but that's okay!!!
Answer: Because The soil in the alpine biome is rocky and nutrient poor. Plants that live in the alpine biome must be suited to the nutrient poor soil.
Explanation: They take longer to grow because of there environment
advantages to using a punnet square
Answer:
One advantage of Punnett squares as a model of inheritance is that a Punnett square summarizes how the processes of meiosis and fertilization contribute to inheritance of different alleles of a gene.
Helpppp for forensic science I need to know what a cup would be classified as evidence wise. options biological, physical, impression or trace evidence.
Answer:
Options biological
Explanation:
There are traces in a cup where human dna can be found
True or false earth is a single interconnected system :)
Answer:
True.
Explanation:
The earth system is itself an integrated system, but it can be subdivided into four main components, sub-systems or spheres: the geosphere, atmosphere, hydrosphere and biosphere. These components are also systems in their own right and they are tightly interconnected.
Describe the term "semi-permeable" (or "selectively-permeable) membrane. Why is it important? (giving brainliest to the first person lol)
Answer:
Cells need a selectively permeable barrier sometimes called a semi-permeable membrane because some items need to be allowed to come in while others need to be let out of the cell.
Explanation:
Semi-permeable membranes allow the cell to keep a isotonic state. The amount of water is the same inside as outside the cell.
Which best describes why active transport requires atp to move molecules across the cell membrane?
A. Molecules are moved with the concentration gradient
B. Molecules are moved against the concentration gradient
C. No net movement of molecules needs to occur
Answer:
B. Molecules are moved against the concentration gradient.
Explanation:
Due to the higher concentration of the molecules of one of the sides than the other,in order to move molecules from the side with higher concentration of molecules to the side of lower concentration of molecules which is against the movement of molecules across the membrane, energy must be applied i.e atp.
The reason active transport requires ATP to move molecules across the cell membrane is because molecules are moved against the concentration gradient.
ACTIVE TRANSPORT:
Active transport is a type of cellular transport that requires the input of energy in form of ATP. Examples of active transport are pumping of Na+/K+ ions, exocytosis etc. Active transport requires ATP because molecules are being moved against concentration gradient. This means that molecules are moved from regions of low concentration to that of high concentration. Passive transport, which does not require energy, moves molecules down a concentration gradient. Therefore, the reason active transport requires ATP to move molecules across the cell membrane is because molecules are moved against the concentration gradient.Learn more at: https://brainly.com/question/12133248?referrer=searchResults
What is the process called when Mitochondria/Chloroplasts multiply?
A. Conjugation
B. Mitosis
C. Binary Fission
D. Meiosis
Answer:
I believe that is mitosis, but please correct me if I'm wrong.
