A student wants to know if the weight of a cart affects its speed at the bottom of a ramp. He can change the weight of the cart by adding different numbers of balls, and he can change the height of the ramp by using different numbers of blocks. Which three tests would be invalid? (Select all three)
Answers
Answer: D
Explanation:
Answer: its the first one
Explanation:
Related Questions
The theories of "Survival of the Fittest" and "Evolution" were proposed by which scientist?
a
Isaac Newton
b
George Washington
c
Albert Einstein
d
Charles Darwin
Answers
Darwin was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution.
Dichotomous Keys are arranged in set of couplets.
True
False
Answers
Answer:
True
Explanation:
Conventional dichotomous keys consist of a series of paired choices called couplets. Each couplet presents the user with two alternative and exclusive sets of characters that distinguish one group of organisms from the other.
hope this heps!
WILL GIVE BRAINLY IF CORRECT AND EXPLAIN!!!
If world populations miraculously started to drop and less people were on the planet, would our fossil fuels last longer? PLS EXPLAIN!
Answers
Answer:
Yes
Explanation:
As you may know, if there are fewer people on the planet and they don't use fossil fuels much, then there will be more fossil fuel that would be saved. So, it would last longer if fewer people are using fossil fuel resources.
5. What are THREE (3) functions of the skeletal system?
Answers
A student wants to find out if a particular kind of plant grows better with or without potting soil. She has two identical plants. She places one plant in potting soil and sets the plant in the sunlight.
Which of the following conditions should she use for the second plant to determine the effect of soil?
Last 2 images are answer choices
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1.Explain energy flow from producer to consumer.
2.Explain energy flow from consumer to consumer.
((Your explanation should include the role of decomposers.))
Answers
Answer:
My Therapist Told Me "Time Heals All Wounds", So I Stabbed Him. Now We Wait...
Explanation: Trust Me This Is Always The Answer!!
Hope this helps
Heredity is described as the passage of genetic instructions from one generation to
the next generation. Which of the following is the best example of a result of heredity?
A. A young girl enjoys eating apples like her mother.
B. A man becomes a lawyer like his uncle.
C. A child's brown eyes matches his father's eyes.
D. The children of the same family each like dogs.
Answers
Answer:
Answer: The Blue eye trait skipped a generation and so the girl got the trait with the two alleles (bb: for example)
Explanation:
Which of the following concepts best explains why an island can support many beetles but few hawks?
A. the energy pyramid
B. the carbon cycle
C. the nitrogen cycle
D. the food web
Answers
Complete the following sentence.
During the ______________ process, music editors work closely with technical engineers and mixers to develop a soundtrack.
Answers
Is it likely that scientists will unearth something that will show the theory of evolution to be false?
Answers
Answer: Yes
Explanation: As time passes Scientists discover new things every day. The chance of them finding something to prove the theory of evolution is highly possible. Hope this helps.
The science club at Tracy's school is researching how temperature affects fish reproduction. They conducted a study to find out if raising the water temperature would decrease the number of bass eggs that hatched.
They gathered bass eggs from a local lake. Half of the aquariums were kept at room temerpature, and the other half were placed in a sunny window.
What is the independent (test) variable from this experiment?
The size of the lake.
The number of bass eggs that hatch.
The temperature of the water.
The number of aquariums.
Answers
Answer:
The temperature of the water.
Explanation:
The independent variable is the thing you are changing in order to observe an outcome. The dependent variable is the outcome (the number of bass eggs that hatch).
A theory will eventually become a law if there is enough evidence to support it
True or False
Answers
Answer:
True.
Explanation:
Since the words hypothesis and law have such diverse implications within the dialect of science, it is often a troublesome address to reply, so instep, I'll begin by giving you some similar questions to answer. How flawlessly do you have got to construct a house so that it'll become a single brick? How well do you have got to type in a whole dictionary to alter it into a single word? What would you have got to do to alter a whole ensemble into a single note? If you're considering that those questions do not make much sense, at that point you're feeling exceptionally much like a researcher who has been inquired "How much proof does it take for a hypothesis to graduate to being a law?" A house is made up of numerous bricks, sheets, nails, windows, entryways, concrete, etc. A lexicon is made up of thousands of distinctive words, and a orchestra can effortlessly have thousands of notes that all fit together in fair the proper way to deliver satisfying music. Within the same way, hypotheses are based on a assortment of logical laws, actualities, testing, and other evidence, all fit together in a way that offers an explanation of how some part of the universe works.
Answer:
YES
Explanation:
Its right answer
At night, when conditions are right, many creatures from the deep sea travel to the ocean surface in search of food. True or false?
Answers
Fill in the blank with the correct response.
When heart patients listen to music during recovery, it often results in a(n)
in blood pressure levels.
Answers
When heart patients listen to music during recovery, it often results in raise in blood pressure levels.
What causes high blood pressure?Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries.
Eat too much salt and do not eat enough fruit and vegetables. do not do enough exercise. drink too much alcohol or coffee (or other caffeine-based drinks) smoke.
High blood pressure can happen without feeling any abnormal symptoms. Moderate or severe headaches, anxiety, shortness of breath, nosebleeds, palpitations, or feeling of pulsations in the neck are some signs of high blood pressure.
Learn more about blood pressure:
https://brainly.com/question/12497098
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In the Pacific Northwest in the United States, a small earthquake happens off the coast. This is caused by:
a - weathering
b - plate tectonics
c - volcanism
Answers
Answer:
B. Plate tectonics
Hope this helps
Answer:
it's b
Explanation:
HELP ITS DUE TODAY put the number by which one you answer!!!!
Answers
Products (H = 2, O = 0)
2- Reactants (P = 4, O = 2)
Products (P = 2, O = 3)
So basically if it was H20, then there is 2 Hydrogen because the two is in front of the H and there isn’t a 2 in front of Oxygen.
However if it was H2O2, then there is two hydrogen and two oxygen because there is a two on both of the symbols which indicates how much reactants/products there is.
Hope this helps!
What conditions are required for salt crystals to form?
organisms trapping salt particles in their bodies
very high temperatures
when salty oceans and seas evaporate
extreme pressures
Answers
The conditions that are needed for salt crystals to form are:
when a solution becomes over saturated, meaning too much salt in the water, the extra salt in a solution makes the crystals form overtime.
This can either be by letting it cool down, or evaporation
Answer: down
Explanation:
No the water is essentially distilled by evaporation. Leaving all the dissolved salts and suspend matter behind.
What would most likely reduce the strength of Tropical Storm Laura after she becomes a hurricane?
Answers
Answer:
I have no idea but I need points
Can you please help me
Answers
lol sorry I came here for the free point thank you!!
what are convections of the atmosphere and the oceans due to?
Answers
Answer:
The convention has resolved several important issues related to ocean usage
What is the source of energy for a strong storm?
Answers
Answer:
The heat from the surface water is the is the energy
for a storm and if the wind is right then it can cause a hurricane.
Answer:
When the surface water is warm, the storm sucks up heat energy from the water. This creates moisture in the air, and if wind conditions are just right, the storm will become a hurricane. This heat energy is the fuel for the storm.
(Which is the independent or dependent variable) You are walking directly away from your house. You are 555 kilometers away from your house when you start walking, so you can determine your distance from your house by adding 555 to the number have walked.
Answers
Answer: 666
Explanation:
A balanced chemical equation indicates both the number of particles of reactants and products and the number of
a.
orbits.
c.
nuclei.
b.
electrons.
d.
moles.
Answers
Discuss the difference between the following terms: control group, independent variable, and dependent variable.
Please don’t search up the answer.
Answers
independent variable: thing being tested
dependent variable: outcome of study
Wakefield’s latitude is 42 degrees North. The sun on the summer solstice is directly overhead at 23.5 degrees North latitude (the Tropic of Cancer). What will the sun’s altitude above the horizon be to an observer in Wakefield on that date?
Answers
Answer: Wakefield's latitude is 42 degrees North. The sun on the summer solstice is directly overhead at 23.5 degrees North latitude (the Tropic of Cancer).
Explanation:
When you combine two or more atoms of different elements, you make a(n) ______.
A. electron cloud
B. molecular formula
C. valence electron
D. compound
Answers
Answer:
D [Compound]
Explanation:
D is the correct answer for this question
Answer:
When you combine two or more atoms of different elements, you make a(n) D. compound.
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Hope this helps!
Have a great day and God bless! :)
help me please best answer get brainliest
Answers
Answer:
its D
Explanation:
In my perspective its like an pattern.
Once the solid gains enough thermal energy, it can change to a _____ state.
A. liquid
B. gas
C. solid
D. frozen
PLEASE HELP
Answers
Answer:
A
Explanation:
Liquid
PLEEASEEE HELPPPPP) Which of the following is the overall goal of all territorial behavior?
A. to maintain access to a particular type of environment
B. to impress mates in order to reproduce
c. to gain resources to increase success
d. to defend food sources for personal use
Answers
Answer: A or D, mostly D
Explanation: I say this because if they have something that's theirs, they are gonna mark their territory. just like a dog. They want other dogs ( other animals) to know that that's their domain. If it wrong please say so.
Which layer of Earth is broken up into giant moving plates?
Group of answer choices
Crust
Mantle
Outer Core
Inner Core
HELP
Answers
Answer:
Crust
Explanation: