Answer:
7 42 x 10^1
Explanation:
Because 10 x 1 =10
A student is doing a genetics experiment on beetles. The student breeds a pure green beetle with a pure brown beetle. The student repeats this experiment ten more times. Every time the student performs this cross, all of the offspring are green. What does that mean? A. The gene for green and brown are equally expressed because half the beetle parents have a green phenotype and half the beetle parents have a brown phenotype. B. The gene for green color is dominant over the gene for brown because all the beetle offspring have a brown phenotype. C. The gene for brown color is dominant over the gene for green color because all of the beetle offspring have a brown genotype. D. The gene for green color is dominant over the gene for brown color because all the beetle offspring have a green phenotype.
Answer:
b
Explanation:
bbhbh
The genes for green color are dominant over the genes for brown color because all the beetle offspring have a green phenotype. Therefore, option (D) is correct.
What is phenotype?In biology, a phenotype can be described as the observable characteristics of an organism which is the result of the interaction of environmental factors and genes. These traits involve physical appearances and any traits that we can observe.
The phenotype includes its physiological, biochemical, as well as behavioral properties. Genotype is inherited from the parents while the phenotype can be affected by lifestyle and environmental factors. Environmental factors such as nutrition, temperature, humidity, and mental health of the organism.
For example, flamingoes are white in color but turn pink because of the pigments they need from their diet. Therefore, flamingoes portray how they are affected by environmental factors. The phenotype of an organism changes, accordingly to environmental factors.
Learn more about phenotype, here:
https://brainly.com/question/2887149
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I notice the wheels on my bicycle spin in a circular motion as I am pedaling. I know that the
wheels have a radius of 0.31m and they are going at a speed of 15 m/s. What is the centripetal
acceleration of my bike wheel?
Guess method
Answer:
Acceleration, a = 750m/s²
Explanation:
Given the following data;
Radius, r = 0.31m
Velocity, v = 15m/s
To find the centripetal acceleration;
[tex] Acceleration, a = \frac {v^{2}}{r}[/tex]
Substituting into the equation, we have;
[tex] Acceleration, a = \frac {15^{2}}{0.31}[/tex]
[tex] Acceleration, a = \frac {225}{0.31}[/tex]
Acceleration, a = 750m/s²
Therefore, the centripetal acceleration of the bike wheel is 750m/s².
1-Find the gravitational force
between two objects the first
one is 25 kg and the seconed
one is 0.55 kg and the distance
between it is 35 m.
[tex]g = \frac{GMm}{r^2}[/tex]
where [tex]G[/tex] is the gravitational constant and is about [tex]6.67 * 10^{-11}[/tex]
[tex]g = \frac{6.67 * 10^{-11} * 25 * 0.55}{35^2}[/tex]
[tex]g = \frac{6.67 * 10^{-11} * 25 * 0.55}{1225} = 0.000000000000749 N[/tex] :D
Materials that resist the charges flowing through are ??
Answer:
obstacles
Explanation:
obstacles are the answer to 1. Contract
2. Quartering
3. Profit
4. Tax stamp
5. Declaration of Independence
6. Search
7. House if Burgesses
8. England
I did my best but I could see some of the words :(
Hope this helps!!!
A 4,350 kg truck traveling east has a momentum of 26,100kg m/s what's the trucks velocity
Answer:
6 m/s East
Explanation:
Momentum = Mass . Velocity
26100 = 4350. Velocity
Velocity = 6m/s East
A person walks 8 m/s towards the north. Is this an example of speed or velocity? Explain your answer.
Answer:
I think it is velocity.
because velocity shows the direction and magnitude .
Answer:
Velocity
Explanation:
This is a case of velocity, since velocity apart from having magnitude also has direction. the person walks at 8 [m/s] to the North.
When we talk about speed, we only talk about the magnitude without taking into account the direction.
The ratio between the force of sliding friction and the normal force of an object is called
rolling friction
the drag
the coefficient of friction
the starting friction
(ILL GIVE BRAINLEST)
Convert 7.5 g/cm3 to kg/m3
Answer:
7500
Explanation:
multiply the mass / volume value by 1000
Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for anther. What experiment did he perform to test this idea?
Answer is given below :
Explanation:
He tested the seed color and shape. At the same time Gregor Mendel focused his search on seed size, flower color, seed coat color, pod size, immature pod color, flower position and pea plant height. To describe the results he drew, he coined the terms 'recessive' and 'dominant'.Answer:
The answer is that he tested seed color and shape that same time
Explanation:
why are unit of length mass and time independent with each other?
Under what circumstances will the distance traveled by an object be the same as the magnitude of the displacement of an object?
helppppppppppppppppp
Answer:
Burning of paper
Explanation:
Because new substance is formed
Dose the atoms in a solid move freely or remain in a fixed position ?
During a race, a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25s. What is the sprinter’s average acceleration during this period?
Answer:
[tex]\boxed {\boxed {\sf 2 \ m/s^2}}[/tex]
Explanation:
Acceleration can be found by dividing the change in velocity by the time.
[tex]a=\frac{\Delta v}{t}[/tex]
The time is 1.25 seconds. The change in velocity is the difference between the initial velocity and the final velocity.
[tex]\Delta v=v_f-v_i[/tex] The final velocity is 7.5 m/s and the initial velocity is 5.0 m/s[tex]\Delta v =7.5 \ m/s-5.0 \ m/s=2.5 \ m/s[/tex][tex]\Delta v= 2.5 \ m/s\\t=1.25 \ s[/tex]
Substitute the values into the formula.
[tex]a=\frac{2.5 \ m/s}{1.25 \ s}[/tex]
Divide.
[tex]a=2 \ m/s^2[/tex]
The sprinter's average acceleration is 2 meters per second squared.
Answer: 2 m/s^2
Explanation: Hope this helps :)
An instrument used to detect the current in a
circuit is called
Answer:
Ammeter
Explanation:
An ammeter is used to measure current.
Think of a scenario where an authoritarian leadership style would be beneficial. Explain. What are the reasons it would work well? What are the risks?
Answer:
Explanation:
A scenario in which an authoritarian leadership would be beneficial is in law enforcement in emergency cases (that has to do with public safety or national security) without the bureaucratic bottlenecks of the legislature and judiciary. For example, the recent coronavirus pandemic, authoritarian leaderships would find it easier to enforce the laws on wearing of masks and also prevent producers of personal protective equipment (PPE) from unreasonably inflating prices of there PPEs.
As explained above, it would work well because there will be no legislative bottleneck that will start a hearing at the expense of public safety neither will there be a court that will stall the process at the same expense.
The risks here is that businesses (in this case that of producing PPEs) may find it difficult to survive since the "tone" of the pricing of PPEs will now be determined by government. It may even hinder healthy business competition. It may also lead to production of substandard PPEs in order to generate enough profit (since the main aim of any business is to generate profit).
which of the following best represents force?
1-a push or a pull acting on a object.
2-a push or a pull always causing acceleration.
3-a push or a pull action without an object.
4-a push or a pull always causing motion
Answer:
1 -a push or a pull acting on a object.
Explanation:
force is a push or pull acting upon an object as a result of its interaction with another object.
A 2.1W iPod is used for 30 minutes. How much energy does it use?
ITS TIMED PLEASE HELP !!!!!
Based on the experimental evidence above, what specific term below can be used to describe the relationship
between the net force acting on an object and its acceleration? Include specific trials that support your claim.
Types of Relationships
Direct-linear
Direct-squared
Inverse-linear
Inverse-squared
Answer: direct linear
Explanation:
Someone answer these questions please???
Answer:
a. same
b. less
c. less
Explanation:
you can use the position, time, acceleration equation
xf=xi + vi*t+(at^2)/2
you can say the final distance will greater for X than Y
using acceleration for gravity a=9.81m/s^2
a. both X and Y will have the same acceleration due to gravity
b. to solve for final speed vf=vi+gt
since the initial velocity is 0 and X will take longer to fall, Y will hit the ground with less speed
c. as mentioned before, X will take longer to fall; therefore Y will have less time of descent.
A jar of quarters sits on a table with zero velocity. There are two forces acting on the jar. What is this situation called?
A. Dynamic equilibrium
B. Inertia equilibrium
C. Force equilibrium
D. Static equilibrium
Answer: static
Explanation:
What is the time interval in which the average velocity is Positive?
Answer:
between 0s and 0.5s
Explanation:
the objects position is moving away from the origin and the position-versus-time curve has a positive slope
The kinetic energy of a golf ball is measured to be 140.5 J. If the golf ball has a mass of about 40g, what is its speed
Answer:
V= in square root 2KE/M=2(143.3J)/0.047kg=6097.8723 in square root around 78.1 approxmete
Explanation:
What is intensity?
A.
The fastest your heart can beat
B.
How hard your body is working
C.
A place on your body where you can feel your heart beating
D.
None of the above
Answer:
D
Explanation:
None of the above because the intensity is amount of a property, force, brightness, and magnetic field.
Answer:
D. None of the above
Explanation:
D. None of the above, because the quality or condition of being intense. great energy, strength, concentration, vehemence, etc., as of activity, thought, or feeling: He went at the job with great intensity. a high or extreme degree, as of cold or heat. the degree or extent to which something is intense.
<>Hope this helps! : )
What is the net force required to accelerate a 1.1 kg box at a rate of 2.8
m/s??
Answer:
Fnet = 13.86N
Explanation:
Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.
Mathematically, net force is given by the formula;
[tex] Fnet = Fapp + Fg[/tex]
Where;
Fnet is the net force Fapp is the applied forceFg is the force due to gravitationGiven the following data;
Mass = 1.1kg
Acceleration = 2.8m/s²
To find the applied force;
[tex] Fapp = ma[/tex]
Substituting into the equation, we have;
[tex] Fapp = 1.1 * 2.8[/tex]
Fapp = 3.08N
To find the gravitational force;
We know that acceleration due to gravity, g = 9.8m/s²
[tex] Fg = mg[/tex]
Substituting into the equation;
[tex] Fg = 1.1 * 9.8[/tex]
Fg = 10.78N
To find the net force;
[tex] Fnet = Fapp + Fg[/tex]
Substituting into the equation, we have;
[tex] Fnet = 3.08 + 10.78[/tex]
Fnet = 13.86N
Therefore, the net force required is 13.86N
where is the centripetal force directed on a banked curve?
Answer:
The net force on a car traveling around a curve is the centripetal force, Fc = m v2 / r, directed toward the center of the curve.
Explanation:LET ME KNOW IF ITS WRONG. HAVE A NICE DAY!!!!!!!!!!
Answer: The net force on a car traveling around a curve is the centripetal force, Fc = m v2 / r, directed toward the center of the curve. The centripetal force is directed at right angles to the motion and also along the radius towards the centre of the circular path. In order for a car to move around a circular track, something must provide a centipetal force. One source of the centripetal force is friction between the tires and the road. This means that the tires do not need to supply any friction at all to keep the car from slipping sideways. ...
Hope this helps... stay safe and have a great day!!! :D
Local winds are caused by what?
A. The unequal heating of the Earths surface
B. Weather systems
C. The rotation of the Earths surface
If you throw a ball up with a velocity of 7 m/s, how long will it take for the ball to reach
the top of its path?
Answer:
42secs
Explanation:
v=u-gt
0=7-10t
10t=7
t=7/10
t=7/10*60
t=42
How does Health & Physical Education relate to any other subject you now study in
school?
Answer:
Health relates to science because
in science you study, research, and knowledge in this case, health science, which helps you under stand more about how humans and animals function. And Physical education relates to science because , you study the way of human movement, think of push-ups as a example.
I hope I helped U ´꓃ ` U
Todd expends 400J while pushing a lawn mower across 20m. What force did he use to mow
the lawn? Show your work.
Answer:
F = 20 N
Explanation:
The work is said to be done when an object is acted upon by an external force. And as a result of this force the object is displaced by some distance. Hence, the formula for the work done is given as:
W = F*d
where,
W = Work Done = 400 J
F = Force Applied = ?
d = Distance Covered = 20 m
Therefore, using these values in equation, we get:
400 J = F(20 m)
F = 400 J/20 m
F = 20 N
