Answer:
When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.
I HOPE ITS RIGHT
The process of scientific methods involves making inferences, deriving predictions from hypotheses as logical consequences, and conducting experiments or empirical observations based on those predictions.
Which method do scientists use for research?When conducting research, scientists use scientific methods to experiment with hypotheses (often in the form of if-then statements) aimed at supporting or disproving the scientific theory. Collect empirical evidence.
The six steps of the scientific method are
1) asking about what you are observing,
2) doing background research to learn what is already known about the subject,
3) making hypotheses, and
4). Experiment with a hypothesis, 5) analyze data
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What is one characteristic of the organization of the Periodic Table?
Atoms of elements with the same electron configuration are organized in columns.
Elements are organized in alphabetical order.
Atoms of elements with the same atomic number are organized in diagonals.
Atoms of elements with the same volume are organized in columns.
Answer:
Atoms of elements with the same electons in the outer most shell they are put in the same group on the periodic table
What is biomass energy?
a. Energy harvested from plant material
b. Energy harvested from recycled petroleum O c. Energy harvested from synthetic oil
d. Energy harvested from wind
Answer:
A.
Explanation:
Biomass energy can be harvested from plants, wood, waste, and living or once living organisms.
~ LadyBrain
Processing Questions:
Directions: Answer the questions below on a clean sheet of paper.
1. How was the result of your physical fitness test in Flexibility and muscular
strength compared to your previous assessments?
2. Did you notice some improvements? If no, what do you need to do to improve
it?
Answer:
How was the result of your physical fitness test in Flexibility and muscular
strength compared to your previous assessments?
Explanation:
A scientist wants to learn about Earth's oceans. Which of the following
spheres should she most directly study? (2 points)
Oa
Atmosphere
Ob
Cryosphere
Oc
Geosphere
Od
Hydrosphere
If the mass of an object is 5 kg, the gravitational field strength is 2 and the change in height is 5 m, what is the change in gravitational potential energy stored?
Answer:
50joules
Explanation:
See the explanation from the image I have provided above.
Answer:
50j
Explanation:
Plz someone help me Asap
Answer:
all I know is C
are there more questions? anyone?
-KARL IS STOOPID
Explanation:
Which are examples of a medium?
Answer:
One example of a medium is air.
Explanation:
Answer:
An example? I mean if we're going for an example, I'd say middle, Or balanced.
A vector has an x-component
of 19.5 m and a y-component
of 28.4 m.
Find the magnitude of the
vector.
Answer:
34.45m
Explanation:
Magnitude of a vector is equal to the square root of sum of squares of x & y vectors.
Magnitude = [tex]\sqrt({x^2} + {y^2})[/tex]
= [tex]\sqrt({19.5^2} + {28.4^2})[/tex]
=34.45m
Which of the following are steps for balancing chemical equations?
A. Add all the elements together.
B. Count the atoms in each substance in the reactants and products.
C. Subtract the total amount of elements from the products.
D. Write the chemical equation using formulas and symbols.
Discuss advantages and disadvantages of tissue culture.
Answer:
Explanation:
ADVANTAGES OF TISSUE CULTURE
There are several advantages to using the tissue culture process. We already mentioned its effectiveness in helping developing countries to increase food production, but what are some other advantages that may be relevant to you?
The new plantlets can be grown in a short amount of time.
Only a small amount of initial plant tissue is required.
The new plantlets and plants are more likely to be free of viruses and diseases.
The process is not dependant on the seasons and can be done throughout the year.
You need only a relatively small space to perform the process (ten times the plants in one-tenth of the space).
On a larger scale, the tissue culture process helps to supply the consumer market with new subspecies and variety.
People looking to cultivate challenging plants such as specific breeds of orchid find more success with the tissue culture process than traditional soil.
DISADVANTAGES OF TISSUE CULTURE
Tissue Culture can require more labor and cost more money.
There is a chance that the propagated plants will be less resilient to diseases due to the type of environment they are grown in.
It is imperative that, before being cultured, the material is screened; failure to pick up any abnormalities could lead to the new plants being infected.
While the success rate is high if the correct procedures are followed, success with the tissue culture is not a guarantee. There is still a chance that the process triggers a secondary metabolic chemical reaction, and the new explants or cells' growth gets stunted, or even die off.
An electron in a hydrogen atom drops from the n= 3
energy level to the n=2 energy level. The energy of
the emitted photon is
A) 1.89 eV
C) 1.51 eV
B) 3.40 eV
D) 4.91 eV
Answer: D) 4.91 eV
Explanation:
Which of the following is true concerning hurricanes?
a. They tend to deposit more sediment than they remove.
b. Their storm surges cause widespread flooding.
c. They have fast, but generally weak wind gusts.
d. They do not alter landscapes significantly.
Answer:
B.
Explanation:
B. is correct because every time usually when a hurricane hits it causes flooding causing multiple homes to be ruined. It is a known fact that usually hurricanes start close or in along with tornadoes, the water, meaning once they hit land they have some water to flood that land with.
C. is absolutely false hurricanes have VERY strong wind gusts.
D. is absolutely wrong they do alter landscapes by ripping trees and plants and houses out of the ground making the landscapes look different.
A. is wrong they tend to deposit and remove sediment evenly.
~ LadyBrain
Answer:
B
Explanation:
A mountain climber increases their height from 200 meters to 400 meters. What affect will this have on their potential energy?
Answer:
At 400 m the potential energy of the mountain climber doubled the initial value.
Explanation:
Given;
initial height of the mountain climber = 200 m
final height of the mountain climber, = 400 m
The potential energy of the mountain climber is calculated as;
Potential energy, P.E = mgh
At 200 m, P.E₁ = mg x 200 = 200mg
At 400 m, P.E₂ = mg x 400 = 400mg
Then, at 400 m, P.E₂ = 2 x 200mg = 2 x P.E₁
Therefore, at 400 m the potential energy of the mountain climber doubled the initial value.
The dice in a backgammon set are cubes with each side measuring 10 mm. What is the volume of these dice
Answer: 1*10^3 mm^3
That’s it
Alisa, a skateboarder, is riding down a hill. If Alisa and the skateboard are considered a single object, what forces are acting on her? Check all that apply.
Answer: gravity
normal force
friction
Explanation:
A force is refered to as the interaction which when unopposed, will lead to a change in an objects motion. The velocity of an object will be changed when force is applied.
Since Alisa s riding down a hill and she and the skateboard are considered to be a single object, then the forces that are acting on her include gravity, normal force and friction.
what is the length of the X component of the vector plotted below
Answer:
5
Explanation:
If you straighten out the line, it touches the 5, which makes the length 5
Can someone help me find the which direction is north and which is south on this solenoid?
Explanation:
Now, looking down the solenoid tube determine what direction is the winding. If clockwise in relation to the positive wire then is the south pole, if anti-clockwise then is the north pole. So, to summarize the magnetic south pole is always clockwise in relation to the positive wire.
Please help I’ll give brainliest
Answer:
Magnetic Field
Explanation:
3. What is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m?
Explanation:
everything can be found in the picture
The displacement ‘s' of a point moving in a straight line is given by: s = 6t^2 + 5t – 5, ‘s' being in cm and ‘t' in s. The initial velocity of the particle is:
Answer:
the initial velocity of the particle is 5 cm/s
Explanation:
Given initial displacement as, s = 6t² + 5t - 5
s is measured in "cm"
t is measured in "seconds"
Velocity is the rate of change of displacement with time. Expressed as follows;
[tex]v = \frac{ds}{dt} = 12t + 5[/tex]
for initial velocity, time (t) = 0
v = 12(0) + 5
v = 5 cm/s
Therefore, the initial velocity of the particle is 5 cm/s
Which is the only element in group 1 on the periodic table that forms covalent bonds?
hydrogen
lithium
potassium
sodium
Answer:
HYDROGENExplanation:
Please help!!
What happens to the apparent wavelength in the doppler effect example as the wave source moves forward, towards you?
Answer:
The waves travel at the same speed, but the observed frequency depends on any relative motion between the observer and source. When the observed frequency changes, so does the wavelength. If the observer and source are moving toward each other, then the frequency increases and the wavelength decreases
Explanation:
Hope it helps.
Three balls with different masses are shown below.
(picture of beach ball) - 85g
(picture of football) 425g
(picture of baseball) - 149g
If the same amount of kicking force is applied to each ball, which will travel the farthest?
F - They will all travel the same distance because the applied force is the same
G - the baseball because it's the smallest
H - The football because it has the highest mass and was designed for kicking
J - the beach ball because it has the lowest mass
(btw it's a football, not soccer ball)
Answer:
$10 a g
Explanation:
Answer:
As The mass of the beach ball is having lowest magnitude when compared with the other balls given so when apply the same magnitude of force to all the balls then the beach ball due to its lighternessand also its inertia of rest would not resist the force so much so when you apply the force to this ball it would starts to roll and covers the maximum diatance whwn compared with the other ball only in the condition when same magnitude of force applied.Thats this ball would do more work than the other ball.The mass also influences the velocity carried by the body and also the kinetic energy possessed by the body. More the force applied more the distance it would cover
Hope it helps
Matthew was bowling. He bowled with a 12 pound ball at first then used a 10 pound ball. If matthew uses the same amount of force to roll the bowling balls, which one would roll faster?
F- the 12 pound ball
G - they would roll the exact same speed
H - the 10 pound ball
J - none of the above
Answer:
Rotational inertia depends both on an object's mass and how the mass is distributed relative to the axis of rotation. ... We can't just consider the mass to be concentrated at its center of mass. When a mass moves further from the axis of rotation it becomes more difficult to change the rotational velocity of the system.So the ball with 10 pounds of the ball can have more probability to do an absolute pure rotation along rolling translation.And also the specific material from which it is made up of. As If the body is rigid have the points dont move from their position when a magnitude of force applied then the body woukd perform a well rotation than a resistantant body.
Hope it helps
At what point does the roller coaster have the most potential energy?
Answer:
Gravitational POTENTIAL ENERGY is greatest at the highest point of a roller coaster.
Explanation:
hope this helps
have a great day/night :)
What type of glass absorbs light and does not allow light to pass through it?
reflective
transparent
opaque
refractive
opaque glass does not allow light to pass through it.
If the current in the circuit is 10.5 A,
what is the potential difference across the
source?
(AI 0.750 V
(B) 9.19 V
(C) 12.0 V
(D) 49.0 V
(E) 147 V
Answer:
E) 147 V
Explanation:
Ra+Rb+Rc = 14.0
V = IR
V = (10.5)(14.0)
V = 147 V
The potential difference across the source will be c)12V
What is Ohm's law ?Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points .
since , R(A) , R(B) AND R(C) are in parallel combination , hence equivalent
resistance of the circuit will be
1/R = 1/R(A) + 1/ R(B) + 1/ R(C)
1/R= 1/2 + 1/4 +1/8
1/R = 7/8
R = 8/7 ohm
from ohm's law
Voltage = current * resistance
V( source ) = current (in circuit ) * R (equivalent resistance)
V = 10.5 * (8/7)
V = 12 V
The potential difference across the source will be c) 12V
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What is the time it takes a tow truck to pull a car if it has 1,850,000J of work and 370,000 Watts of power ?
P = W / t
370,000 = 1,850,000 / t
t = 1,850,000 / 370,000
t = 185 / 37
t = 5 seconds
explain why temperature first increases, then begins to decrease throughout the day
Answer:
As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases.
13. Which cart has the greatest inertia?
1. a 1-kg cart traveling at 4 m/s
2. a 2-kg cart traveling at 3 m/s
3. a 3-kg cart traveling at 2 m/s
4. a 4-kg cart traveling at 1 m/s
