3. Atoms with the same number of protons and electrons are neutral, and their charges add up to
a) zero
b) one
c) ten
Answers
Answer:
a) zero.
Explanation:
If the charge of an atom is neutral, then that means it has neither a negative charge nor a positive charge. So, it would have a charge of 0.
Hope this helps!
The atom has an equal number of protons and electrons meaning it’s neither positive nor negative.
Related Questions
Substance A has twice the specific heat capacity as substance B. If 1000 J of heat are added to 1.0 kg of each substance, compare the change in temperature of each substance.
Answers
Q=mc x delta T
Q= heat energy in Joules
m= mass of substance heated or cooled
c= specific heat
ΔT is change in temp.
Solve for change in temp=. Q/mc
Specific heat and mass are not inversely proportional to heat energy input.
Putting into real world scenario of using water to heat a building.
Specific heat of water is 1.
It takes 1 btu to raise one pound of water 1 degF. at a base of 60 degF
Acetone specific heat is .51
So it takes half the amount of heat input to get a 100 degree ΔT, as compared to water.
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Online Content: Site 1 Online Content: Site 2 How is coal formed and why is it considered a nonrenewable resource? (Site 1)
Answers
Answer:
Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation:
Coal is formed from the fossil fuel that lie deep beneath the earth crust . These fossil fuels are dead remains of living organism that burried beneath the earth crust million of years ago.
Coal is non renewable because if once it gets depleted it will take a very very long time to replenish.
Answer: Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation: just did it
Imagine you live next-door to your best friend. Your bedroom windows face each other, and you want to set up a way to communicate privately using waves. You have these supplies:
a long string
a spring toy long enough to stretch between your windows
metal cans
a Morse code alphabet decoder (Morse code is a system that represents letters of the alphabet with dots and dashes) imagine you live next-door to your best friend
Answers
Answer:
A morse code alphabet decoder maybe?? I am confused
Explanation:
Answer:
J3rk it in the window ;-)
Explanation:
What is the number used as the Gravitational Constant?
Answers
Answer:
G is called the constant of gravitation and is equal to 6.67 × 10−11 newton-metre2-kilogram−2.
Explanation:
A toy rocket has a mass of 2.0 kg. The rocket has a force of 8.0 N acting on it. What is the acceleration of the rocket?
6.0 m/s^2
0.25 m/s^2
16.0 m/s^2
4.0 m/s^2
Answers
Answer:
force=mass × acceleration
8=2 × acceleration
acceleration= 8/2= 4 m/s²
Answer:4 m/s²
Explanation:
A ball rolls 14.4 m in 12 12 sec. what is the speed
Answers
Answer:
1.2 mph
Explanation:
14.4 ÷ 12 = 1.2
You skip north for 12 minutes to your best friend's house that is 1.5 kilometers away. What is your average velocity?
Answers
Answer:
The average velocity is 7.5 km/h
Explanation:
Were Gonna convert minutes to hours
12 minutes = 12/60 hours = 0.2 hours
Now we estimate the average velocity of the distance traveled over this time
1.5 / 0.2 km/h = 7.5 km/h
TRUE or FALSE: An object's weight changes depending on which planet it is located.
A. TRUE
B. FALSE
Answers
Answer:
B False
Explanation:
plz correct if im wrong i am 100% sure thx
The answer should be true I hope this helped:)
why are north and south poles important to magnets
Answers
Answer:
All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.
Hey there ..
if u found it helpful please mark me as brainliest
About how long does it take for the moon to go from new moon to full moon?
Answers
Uhdjdjbsjnshd
Answer:
1 month
Explanation:
It takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to full Moon).
Calculate the speed of a dolphin that is observed swimming 75 meters in 5.0 seconds.
Answers
Answer:
15 meters/second
Explanation:
what is the gain in gpe when a brick of 2.00 kg is lifted up by 11.5 m
Answers
Explanation:
the question is not clear
A coil of wire can become a temporary magnet if connected to a battery
O True
O False
Answers
Answer:
true
Explanation:
An Electromagnet is called as a temporary magnet, because electromagnet is made up of insulated copper wire wrapped around soft iron, which allows current to flow in it and at that moment iron gains it magnetic properties and when the current is switched off, then there will be no flow of current and hence iron loses its magnetic properties.
Hence it works temporarily as long as electric current flows in a conductor and hence known as temporary magnet. .
you push a freezer with a force of 250 N. if you move it a distance of 15 m, how much work was done?
Answers
Answer:
375J
Explanation:
W=F x d
=250 x 15
=375J
The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea. If the force is applied at an angle to the displacement, the work is W = fd cos.
What force is related to work done?Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, For a constant force that is oriented in the same direction as the motion, it is easiest expressed as the product of the force's magnitude and the distance travelled.
A desk is being subjected to applied force if someone is pushing it across the room. The person's force applied to the desk is known as the applied force.
Mass and weight are not the same.The normal force is the supporting force exerted on an object when it collides with another stable object.
Therefore, W=F × d =250 × 15 =375J
Learn more about work done here:
https://brainly.com/question/13662169
#SPJ2
John attached a ball to a spring
Answers
Answer:
C down
Explanation:
The ball is pulling the spring down so this must be the direction of the force
where did the scientific revoluton began
Answers
Answer: The scientific revolution began in Europe toward the end of the Renaissance period, and continued through the late 18th century, influencing the intellectual social movement known as the Enlightenment
Explanation:
Determine the acceleration of a car of mass 900 kg, when a net force of 2700 N acts on it.
Answers
Sally pulls a sledge
Answers
How can circular motion be accelerated when speed is constant?
A. Because of the accelerator pedal in the vehicle
B. Because Newton said
C. Because direction changes
D. Because the vehicle has circular wheels
Answers
Answer:
Correct answer is C: Because direction changes.
Explanation:
Hope you have a wonderful weekend.
What is a set in Gym?
Answers
Answer:
repetitions of a certain exercise
Explanation:
explain Newtons Laws
Answers
1) Newton first law of motion: state“If a body is at rest it reamain at rest and if it is in a motion it continu its motion unless a net external force acting on it”
This law also called law of inertia
2) Newton second law of motion: states that ‟acceleration to the force acting on the body and inversky proportional to the mass of the body”
3) Newton's third law of motion: It is not possible to exert a force abody with out the body exerting a forces in the opposite direction.
These forces are called action and reaction forces
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
Akito pushes a wheelbarrow with 800 W of power. How much work is required to get the wheelbarrow across the yard in 12 s? Round your answer to the nearest whole number.
It takes
J of work to get the wheelbarrow across the yard.
Answers
Answer:
9600
Explanation:
Answer:
Hey... your answer is 9,600
Explanation:
Hope this helps :)
Here is prove just in case...
Best of luck <3
EXPLAIN CONSERVATION OF MOMEMTUM WITH THE HELP OF COLLISION OF TWO OBJECT.
Answers
i hate this question.
Conservation of momentum - is when the total momentum before and after collision is equal.
Here is the formula darling,
p = p
mv = mv
See the pic for example. HmpH
Atomic energy is produced from changes within the_____ of an atom.
electrons
neutrons
protons
or
necleus
Answers
Answer:
Atomic energy is produced from changes within the nucleus of an atom.
Answer:
nucleus
Explanation:
Which explanation BEST supports Newtons second law of motion
Answers
Answer:
c
Explanation:
because newton's second law states that F= MA
which suggests that if M increases, F also increases which is the force,
let me give you a tip, during exam, just type any random numbers into the formula, like at first you type 5 into the M, then increase M, by putting 10 into the M , keep the acceleration the same for this, okay?
you will see that the force will increase,
by this I mean that option says largest mass, so the force will also be very big because in reality do you use more force on heavier box or a lighter one to push it across the room?
so larger mass, larger force, greater acceleration
but the question is not being clear, whether to the force remains constant for every object, if it does then A is false . and B is false because if the forces is constant, and it is light, it would require a small amount of force ,
but the other options, gave us a clue about the force so you can choose either c or d but see the explanation above,
the only corrext option will be c.
if not, please report this, someone will have a go at it
:) byeee
which best explains why offspring created through sexual reproduction have greater variation than those created through asexual reproduction
Answers
Answer:
its fun
Explanation:
I like fun OWo
What were the organic compounds Professor Wadhwa found and why are they important?
Answers
Answer:
Organic compounds are important because all living organisms contain carbon. They are the basic components of many of the cycles that drive the earth. For example, the carbon cycle that includes the exchange of carbon between plants and animals in photosynthesis and cellular respiration.
1. In the following circuit,which bulb lights first?
A) Bulb A
B) Bulb B
C) Bulb C
D) They all light at the same time
E) A and C light first, B lights after them.
Answers
Answer:
Bulb B is the answer
an objest with the mass of 2 kg is accelerated at 4 m/s2. the net force acting on the object is
a) 2N
b) 20N
c) 5N
d) 10N
Answers
F=ma
= 2*4
=8N
8N should be the answer
if you already have the time which is 4s and the initial velocity which is 9.8m/s and the acceleration which is -9.8m/s/s. what would the dispacement be?
Answers
Answer:10
Explanation:
2+2=10
Answer:
10
Explanation:
2+8=10
6+4=10
5+5=10
7+3=10
9+1=10
3+2+4+1=10