Asking your friends what kind of candy they like and recording the responses.
recording answers are a valid experiment. but at the same time adding minutes to different types of soda and recording is another great idea.
Statement A is correct. Adding Minutes to different types of soda and recording/comparing the reaction height is an example of a valid experiment.
What is an experiment?An experiment is a technique used to prove or disprove a theory, or to test the efficacy or probability of something that has never been done before.
Experiments reveal cause-and-effect relationships by illustrating what happens when a specific component is changed. Experiments have a wide range of goals and scales,
but they always rely on a repeatable technique and rational interpretation of the outcomes. Natural experimental research is also available.
Adding Minutes to different types of soda and recording/comparing the reaction height is an example of a valid experiment.
Hence statement A is correct.
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During an experiment, a scientist places a heat lamp above a bowl of water and uses the lamp to heat up the water. How does heat transfer from the lamp to the water?
Conduction
Convection
Radiation
None of the above
sorry i dont know what subject to put
Answer:
radiation
Explanation:
Calculate: The net force on a rock with a mass of 2.0kg is 19.6N. What is the acceleration of the rock?
Answer:
the acceleration is 9.8
Explanation: F = mA, 19.6 =2A, A = 9.8 m/s^2
what are two roles of bacteria in a nitrogen cycle
Answer:Nitrogen-fixing bacteria convert free nitrogen gas into nitrogen compounds. ... Bacterias that are decomposers recycle nitrogen compounds in the soil by breaking down animal wastes and dead plants and animals. 3. Other bacteria break down nitrogen compounds and release free nitrogen back into the air.
Explanation:
"The nitrogen fixing and bacteria of decay" is the two major role of bacteria in nitrogen cycle."
What is nitrogen fixing?Nitrogen fixing can be define as the process in which It is possible to see nitrogen converting to nitrate.
What is bacteria of decay?Bacteria of decay can be define as the process in which it is possible to see nitrogen waste converting to ammonia.
What is nitrogen?Nitrogen can be referred as element which is kept in boron family in the periodic table.
Therefore, the two role of bacteria in a nitrogen cycle is bacteria of decay and nitrogen fixing.
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which is the stronger acid?
A pH 1
B pH 4
C pH 8
D pH 13
1. body composition the amount of calories the body uses when it's at rest
2. isometric exercises the amount of fat compared to non-fat tissue in the body
3. isotonic exercises resistance training that does not involve movement
4. resting metabolic rate a harmful increase in blood pressure when a person holds his breath during resistance training
5. Valsalva Maneuver resistance training that involves movement
Answer:
1. body composition 1
2. isometric exercises 3
3. isotonic exercises 4
4. resting metabolic rate 2
5. Valsalva Maneuver 5
Explanation:
Look at the vocab definitions
Answer:
1. body composition 3 resistance training that involves movement
2. isometric exercises 5 a harmful increase in blood pressure when a person holds his breath during resistance training
3. isotonic exercises 2 resistance training that does not involve movement
4. resting metabolic rate 1 the amount of fat compared to non-fat tissue in the body
5. Valsalva Maneuver 4 the amount of calories the body uses when it's at rest
Explanation:
vocabs match with the term next to it
Determine the displacement and distance covered by a man if he walks 10 m north, turns east and walks 20m, and then turns left and walks 10 m.
What is a way to make magnets?
Heating
Pressure
Freezing
Answer:
Heating is the answer
Explanation:
I took the quiz and i know its a late response
Freezing is a way to make magnets from ferromagnetic substance.
What is Curie temperature?Curie point, also known as Curie Temperature, is the temperature at which the magnetic characteristics of some magnetic materials abruptly change. Remnant magnetism manifests in rocks and minerals below the Curie point, which for magnetite, a common magnetic mineral, is approximately 570 °C (1,060 °F).
In some magnetic materials, atoms that act as small magnets spontaneously align themselves below the Curie point, which for iron is 770 °C (1,418 °F). Because the atomic magnets in each microscopic region (domain) of ferromagnetic materials, such as pure iron, are aligned in the same direction, their magnetic fields reinforce one another.
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I need help with question ii) Calculate the speed of these radio waves.
I don't know if I started it right.... I need help plss!!!
Answer:
Speed = Wavelength x Wave Frequency. In this equation, wavelength is measured in meters and frequency is measured in hertz (Hz), or number of waves per second. Therefore, wave speed is given in meters per second, which is the SI unit for speed.
A glass rod is rubbed briefly with silk and the rod becomes able to attract and lift a number of small pieces of paper. If the rod is rubbed with silk for a longer period of time, explain what will happen and why.
QUICKLY PLEASE!
Answer:
it will have a stronger attraction force
Explanation:
If the rod is rubbed with silk for a longer period of time, then it attract large number of small pieces of paper.
When A glass rod is rubbed briefly with silk, then glass rod is heated because of rod become positively charged. That positively charged glass rod attracts the uncharged pieces of paper because some of the electrons present in the paper accumulate at the end near the rod.Learn more:
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An auto company technician is trying to relate a car’s damage in a crash test to the kinetic energy of the car on impact. In addition to the mass of the car, what ratio will the technician need in order to determine to complete his study? The ratio of time to speed, weight to mass, distance to time, or acceleration to speed. Explain why.
Answer:
????????????????
Explanation:
????????
Can you help me? Thanks! 10+ points!
Explanation:
velocity: average velocity equals Displacement /change in time.
Kinetic energy: K=1/2mv^2 (m = Mass) ( v = Velocity).
speed using the kinetic energy is also KE =1/2mv^2
(M in Kg) (V in m/s)
If two waves interact in destructive interference, which of the following will be true regarding the new wave formed?
A. The new wave will produce a lower-pitched sound than the two original waves.
B. The new wave will produce a quieter sound than the two original waves.
C. The new wave will produce a higher-pitched sound than the two original waves.
D. The new wave will produce a louder sound than the two original waves.
Help plz
Answer:
b
Explanation:
Scientists have sent an unmanned space vehicle to Mars to investigate the properties of the planet. Mars' gravitational field is 38% the strength of Earth's gravitational field. How will the weight and mass of the vehicle change on Mars?
A) The mass will increase, the weight will increase
B) The mass will decrease, the weight will decrease
C) The mass will remain the same, the weight will decrease
D) The mass will increase, the weight will remain the same
