Taking into account the constitution of an atom, the correct answer is option a. the charge of the nucleus of the atom is positive.
Constitution of an atomThe smallest component of ordinary matter with the characteristics of a chemical element is an atom, which consists of a nucleus where neutrons and protons meet, and energy levels where electrons are located.
In other words, The protons and neutrons that constitute the atomic nucleus are located in the nucleus of the atom, while the orbitals, or peripheral region, is where the electrons are located.
The neutron is an electrically neutral subatomic particle, while the proton has a positive electrical charge. Electrons have a negative charge, and are attracted to protons through electromagnetic force.
Overall charge of nucleus of an atomIn summary, since in the center of the atom there are protons with a positive charge and neutrons with a neutral charge, the charge of the nucleus of the atom is positive.
Learn more about mass of particles of an atom:
https://brainly.com/question/18160178
#SPJ6
A plane can fly 300 miles in the same time as it takes a car to go 150 miles. if the car travels 90 mph slower than the plane, find the speed of the plane.
ANALOGY: Mars bar: planet as Milky Way: __________
Star cluster
Candy bar
Constellation
Galaxy
A 10 - kg object is dropped from rest. after falling a distance of 50 m, it has a speed of 26 m/s. how much work is done by the dissipative (air) resistive force on the object during this descent?
Subtitle is the half-life of an element is 10 years how many half-lives will it take before only about 6% of the original sample remains
Strictly speaking, when an object acquires a positive charge by the transfer of electrons, what happens to its mass? (think small.)
What type of roadway has the highest number of hazards per mile?
The roadway with the highest number of hazards per mile is city roads and street.
The city has a high population of people, this is a combination of both men and women. These categories of people need vehicles to move around the city, they need it go to the office, school, markets and so on.
Due to the high number of individuals in the city there tend to be a high level of traffic, this can lead to accident or other type of road hazards.
Please click on the link below to learn more;
https://brainly.com/question/24324407?referrer=searchResults
Signs of fatigue while driving include __________.
A. sore eyes and muscles
B. lapses in short-term memory
C. sore eyes, sore muscles, and lapses in short-term memory
Answer:
C. Sore eyes, sore muscles, and lapses in short term memory
Explanation:
Fatigue refers to an overall feeling of tiredness or a lack of energy in accomplishing tasks, e.g. driving.
Causes of fatigue while driving include;
a lack of quality sleep driving when you would normally be sleeping (overnight) sleep disorders such as sleep apnoea, a sleeping condition that causes tiredness throughout the day.Symptoms of fatigue while driving
Fatigue is easy to detect, with symptoms including:
yawning sore or heavy eyes slower reaction times due to memory short-term lapsesdaydreaming while driving driving speed creeps up or down impatience impaired driving performance such as poor gear changes stiffness and cramps loss of motivationAll of the following statements describe how rubbing one object on another creates static electricity except:
A. Rubbing converts neutrons to protons, increasing the charge.
B. Charge is transferred from one object to the other.
C. The electrons get ripped off one object and held by the other.
D. Rubbing allows the object that has the greater electron attraction to take them.
Answer:
A. Rubbing converts neutrons to protons, increasing the charge
Explanation:
Rubbing two objects creates static electricity. It is also known as charging by friction. When two objects having different electron affinity are rubbed together, the one with greater electron attraction rips off the electrons from other object. In this way charge is transferred from one to another. The one losing the electrons becomes positively charged and the one gaining the electrons becomes negatively charged. Neutrons do not convert to protons. Thus, this is a wrong statement.
30 POINTS! (Question is located in picture under graph)
A) The variables are plotted along incorrect axes.
B) The unit of the variable on the y-axis is incorrect.
C) The scale for each axis is not appropriate for the data.
D) The data points have not been plotted clearly.
E) The data points have not been plotted accurately.
Answer:
B) The unit of the variable on the y-axis is incorrect.
Explanation:
The question to this exercise is in the picture. It is '' What makes the above graph incorrect? ''
Let's analize each option :
A) The variables are plotted along incorrect axes. This is wrong because actually the graph is well-plotted. In a displacement versus time graph we put the time variable in the x-axis and the displacement variable in the y-axis.
B) The unit of the variable on the y-axis is incorrect. This is true. In the graph we can see that [tex]''Displacement(\frac{m}{s})''[/tex] when the units of displacement are units of lengths such as meters or miles for example. Therefore, the B) is a correct option
C) The scale for each axis is not appropriate for the data. This is wrong. Because of the scale for each axis we are able to see the five data points which are (1,2) ; (2,4) ; (3,6) ; (4,8) and (5,10)
D) The data points have not been plotted clearly. This is wrong. All data points are well-plotted signposted with a point at the intersection of the dashed coordinated lines. For example, the point (1,2) is at the intersection of two lines : one dashed line perpedicular to the x-axis at 1 and one dashed line perpendicular to the y-axis at 2
E) The data points have not been plotted accurately. This is wrong. The data points have been plotted accurately at the intersection of the coordinated dashed lines.
Finally, the only correct option is B)
What do astronomers mean when they say that the universe is isotropic?
Noise caused by not understanding somebody's accent is considered:
A) semantic
B) temporal
C) internal
D)external
Answer:
semantic.
Explanation:
100% correct
Which of the following describes groundwater?
Groundwater is a renewable resource.
Groundwater flows quickly.
Groundwater exists only in regions that get a lot of rain.
Groundwater does not exist during dry periods.
Answer: Groundwater exists only in regions that get a lot of rain.
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth crust through tiny pores and fractures in the rocks. The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
According to the above description, Groundwater exists only in regions that get a lot of rain can be considered as correct option.
Temperature refers to the _____. A. amount of heat energy in an object B. arrangement of the atoms in matter C. average kinetic energy of the particles in a substance D. pressure exerted by atoms on anything that touches them
Which statement best compares the accelerations of two objects in free fall?
Hello. This question is incomplete. The full question is:
"Which statement best compares the accelerations of two objects in free fall? 1.The heavier object has a greater acceleration. 2.The object that has the greater surface area has the lower acceleration 3. The object that has the smaller mass has the greater acceleration 4.The objects have the same acceleration "
Answer:
The objects have the same acceleration.
Explanation:
The free fall movement was studied by the Italian physicist Galileo Galilei. According to his studies, Galileo showed that bodies in free fall, even those of different masses, would reach the ground at the same time, as they would be subject to the same acceleration. The free fall is, therefore, a movement described by the bodies, abandoned at a certain height, which happens exclusively by the effect of local gravity. In this type of movement, we disregard the effect of drag or friction forces.
Cells often store materials like water, salts, proteins and carbohydrates in sac-like structures called
a.chloroplasts.
b.lysosomes.
c.mitochondria.
d.vacuoles.
Answer: Vacuoles
Explanation: Vacuoles are large bubble found in the cells. They are found both in plants and animals.
The vacuoles found in the animal cells are comparatively smaller as compared to plants.
They store food or any other variety of nutrients that the cell might need in order to survive. Those substances can be carbohydrates, protein, salts and proteins.
They can also store the waste materials of the cell.
What are the short eruptions of intense high-energy radiation from the sun's surface called? Corona Prominences Solar flares Sunspots
The answer is Solor flare, this is because this is a sudden eruption of energy that is magnetic on or even near the surface of the star, the sun.
Hope this helps!
The surface features of ________ are known only through satellite radar mapping. jupiter mercury venus mars
What is the momentum of an object that is moving in a straight line at a speed of 10 m/s and has a mass of 10 kilograms?
A. 10 m/s
B. 100 kg-m/s
C. 100 m/s2
Determine whether the zero state is a stable equilibrium of the dynamical system
If the motor exerts a force of F = (600 + 2s2) N on the cable, determine the speed of the 100-kg crate when it rises to s = 15 m. The crate is initially at rest on the ground.
Answer:
Speed of the 100 kg crate, v = 136 m/s
Explanation:
It is given that,
Force exerted by a motor, F = (600+2 s²) N
mass of the crate, m = 100 kg
We have to find the speed of the crate. Force is given by the product of mass and acceleration.
F = m a
g is acceleration due to gravity
[tex]F=m\dfrac{d^2s}{dt^2}[/tex]
[tex]\dfrac{d^2s}{dt^2}=\dfrac{600+2s^2}{100}[/tex]
[tex]\dfrac{d^2s}{dt^2}=6+0.02s^2[/tex]
[tex]\dfrac{d^2s}{dt^2}-6-0.02s^2=0[/tex]
or
s"- 6 - 0.02 s² = 0
On solving the above differential equation using calculator with when initially the crate is at rest s(0) = 0 and s'(0) = 15 m
[tex]s(t)=150\ e^{-\sqrt{2}t}+150\ e^{\sqrt{2}t}-300[/tex]
Differentiating above equation w.r.t t to get velocity of the crate.
So, v = 136 m/s
Hence, this is the required solution.
In terms of speed, frequency, or wavelength, explain why when watching a baseball game you often see the batter swing before you hear the sound of the bat making contact with the ball.
Which scientist proposed the idea of a sun-centered solar system instead of an earth-centered solar system?
Final answer:
Nicolaus Copernicus is credited with challenging the geocentric model and proposing a sun-centered solar system, which was later supported by other astronomers like Tycho Brahe, Johannes Kepler, and Galileo Galilei.
Explanation:
The scientist who is credited with proposing the idea of a sun-centered solar system is Nicolaus Copernicus. Before the 16th century, the prevailing model of the cosmos was geocentric, developed by Aristotle and Ptolemy, with the Earth at the center. However, Copernicus challenged this view in his treatise "On the Revolutions of the Celestial Spheres", initiating a paradigm shift towards a heliocentric model. This change was further supported by the observations and analyses of Tycho Brahe, Johannes Kepler, and Galileo Galilei, as well as the theoretical framework provided by Isaac Newton's laws of motion and universal gravitation.
A ray of light traveling in air strikes the surface of a liquid. if the angle of incidence is 29.7◦ and the angle of refraction is 16.3◦ , find the critical angle for light traveling from the liquid back into the air. answer in units of ◦
HELP ASAP
A roller coaster is 1/2 way down, what form of energy does this roller coaster have at this point?
KINETIC, POTENTIAL, OR BOTH KINETIC AND POTENTIAL ENERGY?
At a particular instant, a stationary observer on the ground sees a package falling with speed v1 at an angle to the vertical. to a pilot flying horizontally at constant speed relative to the ground, the package appears to be falling vertically with a speed v2 at that instant. what is the speed of the pilot relative to the ground?
When two velocities combine, to a ground observer, a package dropped from a plane falls at an angle, but to a pilot moving with the package, it appears to fall vertically. Using Pythagorean theorem, we calculate the speed of the pilot as √(v1^2 - v2^2).
Explanation:This is a Physics problem that deals with relative velocities. We need to evaluate what is observed by two different observers stationed at different places. The first observer is stationary and they view the package at an angle with the speed v1. The second is a pilot who perceives the same package dropping vertically with the speed v2.
In this scenario, the package has two independent velocities, a horizontal one (which is the speed of the airplane), and a vertical one (which is the speed of the package falling down). To the observer on the ground (which is stationary), both these speeds combine, resulting in the package falling at an angle. But to the pilot, who moves with the package horizontally, only sees the vertical fall. Therefore, they perceive the package falling downwards with the speed v2.
Using the Pythagorean theorem for velocity addition for perpendicular components, we know that v1^2 = (speed of the pilot)^2 + v2^2. Therefore, using algebra, we find the speed of the pilot to be √(v1^2 - v2^2).
Learn more about Relative Velocity here:https://brainly.com/question/34025828
#SPJ3
1. Describe the formation of the four types of fronts and the weather associated with each
2. How does the burning fossil fuels influence global temperature. How might the change in temperature affect other parts of Earth, such as the hydrosphere and biosphere
Warm front
Stationary front
Occluded front
A student wants you to demonstrate that an electric current will produce a magnetic field. Which set of objects could be used to demonstrate this? A) A battery, a coil of wire and a compass. B) A compass, some paper clips and a battery. C) A battery, an iron nail and a long copper wire. D) An iron nail, a permanent magnet and a battery.
Answer:
A
Explanation:
A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.
Answer:
a battery, a coil of wire and a compass
Explanation:
A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.
When you use a graduated cylinder in the lab, you can use it only to find the volume of liquids.
True or False?
False, you can't only use it to find the volume of liquids
The given statement is false.
VolumeAt its most fundamental level, volume exists absolutely as a measure of space. When calculating the volume of a liquid, sometimes directed to as capacity, the units liters (L) and milliliters (mL) exist used. Devices used for this measurement include graduated cylinders, beakers, and Erlenmeyer flasks.
Graduated cylinders arrive in a range of sizes, or volume capacities, and much like a measuring cup, volume stands measured by adding liquid to the cylinder and corresponding the liquid level to the graduated scale. The measured volume compares to the volume of liquid contained in the cylinder.
The given statement is false. you can't only use it to find the volume of liquids.
To learn more about Volume refer to:
https://brainly.com/question/898827
#SPJ2
Which statement is true about tomato juice? A) It is an acid. B) It has a pH of 7.0. Eliminate C) It is strongly basic in nature. D) It is a weak hydrophobic substance.
What is an outward curving lens
An outward curving lens, or convex lens, converges light rays and is an essential element in optical devices like microscopes and cameras. It has a positive radius of curvature by convention. Convex lenses help correct farsightedness by focusing light rays onto a specific point.
An outward curving lens, also known as a convex lens or a converging lens, is a lens that is curved outward on both sides, resembling the intersection of two spheres. This type of lens causes parallel light rays to converge or come to a point after passing through it. The radius of curvature for a convex surface is positive by convention, which helps in the lens-maker's equation for calculating the focal length of the lens.
Convex lenses are widely used in various optical devices such as microscopes, telescopes, cameras, and eyeglasses to correct farsightedness by focusing light rays onto a specific point, resulting in a clear image.