Answer:
a have a bright tail and a glowing nucleus
A dwarf planet is most likely to have a bright tail and a glowing nucleus. Thus, the correct option is A.
What is a dwarf planet?A dwarf planet is a small planetary-mass object which is in direct orbit that of the Sun, it is smaller than any of the eight classical planets however it is still a world in its own right.
The prototypical dwarf planet is Pluto. The dwarf planets is that the geologically active bodies, which is an expectation that was borne out in 2015 by the Dawn mission to Ceres and the New Horizons mission to Pluto.
Dwarf planets always being in orbit around the Sun. They are not being a satellite of a planet. They having a mostly round shape due to its own gravity. They also have not cleared its neighboring region of debris.
Therefore, the correct option is A.
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The transformation of energy in the picture below is light energy - electrical energy. What object in the house would then complete transformation thermal (heat) energy?
A) toaster
b) blender
c) television
d) remote control car
Answer:
Toaster
Explanation:
A toaster draws electric current (electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast. ... As electricity runs through the filaments in a space heater, the electrical energy is converted into heat (thermal energy).
When a baseball is thrown straight upward, what is its acceleration at its greatest height? Please explain your answer.
9.8 m/s2 downward
9.8 m/s2 upward
9.8 m/s2 horizontally
0 m/s2
Answer: A
Explanation:
The acceleration of gravity is always 9.8 m/s^2 downwards, even if the velocity is 0 m/s.
What could you detect using a magnet and iron filings?
Answer:
A compass can detect a magnetic field and show its direction. Iron filings can show the shape of a magnetic field. A gaussmeter can detect a field and indicate its strength.
Explanation:
PLEASE ANSWER ASAP!
The formula for kinetic energy is KE = 1/2mv2. If you increase the velocity of an object by 1 m/s, describe the responding change in kinetic energy.
Answer:
A
Explanation:
I took the test on progress learning and got it right.
If we increase the velocity of an object by 1 meter per second, as a result the kinetic energy of the object will increase as velocity is directly proportional to the kinetic energy.
What is Kinetic energy?
The kinetic energy of an object is the energy which the object possesses due to its motion. Kinetic energy is defined as the work which is required be done to accelerate an object of a given mass from the state of rest to its stated velocity.
Kinetic energy is the energy possessed by an object due to its motion. Potential energy is the form of energy which is possessed by an object due to the position or state. Kinetic energy is directly proportional to the mass and velocity of the object. Therefore, if we increase the velocity of an object, then kinetic energy of the object will increase.
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Un objeto con una carga de 7μC se coloca en un campo eléctrico uniforme de 200N/C con dirección vertical. ¿Cuál es el valor de la masa del objeto si se queda "flotando" en el campo?
Answer:
m = 1,429 10⁻⁴ kg
Explanation:
For the object to remain floating, the translational equilibrium condition must be met, we set a reference system where the vertical upward direction is positive
F_e -W = 0
F_e = W
q E = m g
we clear
m = [tex]\frac{qE}{g}[/tex]
let's calculate
m = [tex]\frac{7 \ 10^{-6} \ 200}{ 7 }[/tex]
m = 1,429 10⁻⁴ kg
Which has a larger acceleration, a car or a person running?
Answer:
A car
Explanation:
Learning good work ethics will help you develop _____.
the ability to begin tasks
a healthy identity
a sense of industry
neither
Answer:
a sense of industry
Explanation:
I just had this question and got it right
If 20 N force does 400 J
of work to move an
object, how far does the
object move?
Answer:
20
Explanation:
W = F*d
400 = 20*d
d = 20
Why does matter increase in volume when it heats up?
Answer:All three states of matter (solid, liquid and gas) expand when heated. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.
Explanation:well I tried lol she just copied and pasted faster than I could
ILL GIVE BRAINLIEST !!!!!!!!!!! Do some research, and look up the difference between the zinc-carbon battery described on the
previous page, and the alkaline battery (shown at the left), which is another common dry cell that we
use every day. What are the electrodes made of in the alkaline battery? The electrolyte? Does one type
have an advantage over the other?
Create a few paragraph essay describing your findings to your teacher.
Answer:
The alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide instead of the acidic ammonium chloride or zinc chloride electrolyte of the zinc-carbon batteries. An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved electrolyte separates into cations and anions, which disperse uniformly through the solvent. Electrically, such a solution is neutral.Advantages. One of the advantages of alkaline batteries over other primary batteries and rechargeable batteries is that it has higher energy density. It has longer shelf life than batteries with chloride-type electrolyte. It could last to up to seven years unused, losing about five percent of its energy every year.
Explanation:
A force of 3kN acts on a car to make it accelerate by 1.5m/s/s. What is the mass of the car?
Answer:
2
Explanation:
To find force it's force = mass times acceleration so to find mass you would divide force by acceleration
HELPP!! what is not true about mitosis??
A. The chromosomes in the daughter cells half the number from the parent cell.
B. The chromosomes in the daughter cells are the same number as the parents cell.
C. Each nuclei is identical to the parent nucleus.
D. The four main stages are prophase,metaphase,anaphase, and telophase.
Answer:
I think its A
Explanation:
Which is not an Ultimate Frisbee rule?
Which of the following is a valid unit of power?
Kg.m2/s
Kg.m2/ s3
J
Kg2.m2/ s3
Answer:
kg•m^2/s^3
Explanation:
Here, we want to get the valid unit for power
Mathematically, power is time rate of doing work
Work is the product of force and distance
Unit for force is;
kg•ms^-2
work is;
Kg•ms^-2 • s
= kg•m^2•s^-2
Divide through by the s for time;
we have ;
kg•m^2•s^-2/s
kg•m^2•s^-3
And that is;
kg•m^2/s^3
___________________ is the opposition to the flow of electric charge. (Resistance or Electric power)
Answer:
The answer is Resistance
Answer:
Resistance
Explanation:
it opposes the flow of energy
Properties of helium
Answer:
Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can explioit these properties. Helium was the first gas used for filling balloons and dirigibles
Which of the following has the most kinetic energy?
A. stretching a rubber band
B. a jet flying through the air
C. throwing a paper airplane
D. pitching a baseball
Which of the following areas of the sun is where energy is transferred very slowly, sometimes taking up to 100,000 years, by electromagnetic radiation?
A. the radiation zone
B. the core
C. the convection zone
D. the solar flares
4. A car is accelerating at 40 m/s2, if the car is 400 kg how much force
must be supplied from the engine?*
The moon has a smaller mass than the Earth. If
you were to travel to the moon your weight would
A. Increase
B. Decrease
C. Stay the same
D. Vary with day and night
A force acting toward the center of a curved
or circular path is called
A. Balanced forces
B. Net force
C. Centripetal force
D. Gravity
If dropped from the same height, how would
each ball hit the ground?
Wood Plastic Metal
A. Metal first, then plastic, then wood
B. Wood first, then plastic, then metal
C. Plastic first, then metal, then wood
D. They will all hit at the same time
Answer:
Decrease
Explanation:
If you were on the Moon, which has significantly less mass than the Earth, your weight would: decrease
The point that seemed to be giving me a complicated time was being able to distinguish the difference and meaning of weight and mass and being able to apply that to a problem. I kept mixing up the definitions. For example in homework 3.1, one question asked:
If you were on the moon, which has significantly less mass than the earth, your mass would:
a. increase
b. decrease
c. stay the same
d. become zero
The definition of mass is the amount of matter in an object. The definition of weight is the amount or unit of force. For me, I just had to remember that when it asked about weight, it wasn’t referring how heavy an object is. After I was able to recognize that when it came to weight, questions became easier.
The final and correct answer was decreasing. The answer is because the Moon’s mass is less. This means the gravitational force is less on your body, therefore, your mass is going to be lighter
If you are in a car that is being pulled down a 56 m path with a force of 12.5
N, what is the work being done?
Answer:
answer is 700 joules
Explanation:
work is equal to force into displacement
W=12.5*56
700 joules
what is a example of the doppler effect
Answer:
The change in pitch of a siren on an ambulance
Answer:
Explanation:
The drop in pitch of ambulance sirens as they pass by and the shift in red light are common examples of the Doppler Effect.
What is the effect of temperature on the solubility of a solid in a liquid? Check all correct elements that you included in your question. format: "What is the effect of X on Y?" materials: solid dissolved in a liquid independent variable: temperature dependent variable: solubility
Answer:
materials: solid dissolved in a liquid
independent variable: temperature
Explanation:
I got it right
Describe how computer climate models help scientists understand possible future climate changes. How reliable are these computer models in making predictions about global warming? Discuss any limitations in these models.
Answer:
To predict future climate, scientists use computer programs called climate models to understand how our planet is becoming different. Climate models work like a laboratory in a computer. They allow scientists to study how the unlike factors interact to influence a region's climate.
Now a new evaluation of global climate models used to project Earth's future global average surface temperatures over the past half-century answers that question: most of the models have been reasonably accurate.
Explanation:
I got a 100% on this assignment copy it and put it on your notes then go sentence by sentence copy but dont highlight any "." you will not be able to paste it into the box add the "." after you paste it, it one sentence.
ONE SENTENCE AT A TIME NO ". ' - or :" AT ALL
Please HELP ME If the motion of an object changes, what must be true about the forces acting on that object?
Answer:
If there is a net force acting on an object, the object will have an acceleration and the object's velocity will change. ... Newton's second law states that for a particular force, the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.
Explanation:
If the motion of an object changes, the net force on the object is greater than zero or the forces acting on the object is unbalanced.
According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object. The object will move in the direction of the applied force.
When the net force on an object is zero, the object will be remain at rest.
However, when the net force on object is greater than zero, the object will move in the direction of the greater force.
Thus, we can conclude that if the motion of an object changes, the net force on the object is greater than zero or the forces acting on the object is unbalanced.
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What is angle between the vectors 2i -3j +K
and 3i +2j
?
a. 90°
C. 60°
b. 0°
d. 120°
Answer:
the answer is B
Explanation:
edg 2020
Determine Average Speed.
Total distance = 800 mi
Total time = 10 hr
Explanation:
Average Speed.=Total distance/Total time=800/10=80m/hour
The position of an object in simple harmonic motion is described by the following equation: y=(0.50 m)cos(pi/2)t. What is the amplitude of vibration?
A. 0.75 m
B. 0.25 m
C. 0.50 m
D. 1.0 m
Answer:
C. 0.50 m
Explanation:
mark me as brainliest
The amplitude of the vibration with the given equation, y = (0.50) cos (π/2 ×t) is 0.50 m. Thus, option C is correct.
What is Simple Harmonic Motion?Simple Harmonic motion is defined as the periodic motion of the body resulting from the dynamic equilibrium. It is defined as the motion in which the restoring force is directly proportional to the displacement of the body.
Simple Harmonic Motion is defined as the repetitive back-and-forth motion of the central displacement. The maximum displacement of one side is equal to the maximum displacement of the other side.
The simple harmonic motion. F ∝ -x or a ∝ -x, where F is force and a is the acceleration of the body, and x is the displacement. The maximum displacement of the body is called the amplitude of the motion.
The energy is purely kinetic at its mean positions whereas the energy is purely potential at its extreme ends. The harmonic motion is also called oscillatory motion.
From the given, SHM equation, y = A sin(ωt) where A is the amplitude of the wave and ω is the angular frequency of the wave. In the cosine function, y = A cos(ωt + Ф) where Ф is the phase change.
Thus, the amplitude of the vibration is 0.50 m. Hence, the correct option is C.
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20 points+ Brainliest
A sturdy metal cylinder used for scuba diving is filled with air. The air in the cylinder is heated but the gas is not able to expand. Which type of process has occurred?
A. Isobaric
B. Isothermal
C. Isochoric
D. Adiabatic
Answer:
The answer is B. hope this helps
Explanation:
Can someone pls help me. WILL MARK U BRAINLIEST!!!