In a nuclear reaction, which of the following must be conserved?
A. the number of neutrons
B. the count of nucleons
C. charge
D. the number of electrons

Answers

Answer 1

Answer:

c

Explanation:

Answer 2

Answer:

c

Explanation:


Related Questions

why is it dangerous to connect a battery to itself. what is the term used to describe that

Answers

In the circuit outside of the battery the electrons have to expend all of their energy on the internal resistance of the battery which causes heating

pls what is a friendly relationship

Answers

Answer:

A relationship where both members are freindly and supportive towards each other.

Explanation:

Brainliest?

Answer:

i do not know is your are talking about boyfriend and girlfriend relationship of you are talking about friendship i am just going to say both so for a friendship they do not have to like the same thing but if they do that is cool they have to be nice to each other and understand what one of them wants to do and they have to get along if they want to have a goof friendship so for boyfriend and girlfriend it is okay for them to fight and not understand each other they have to be friends so they can no what they like to do with each other then they can go on dates together

Explanation:

hope i help sorry very long

F.
Using this formula m = =, If a car is pushed with a net force
of 5000N, resulting in an acceleration of 3.5m/s2, what is the
mass of the car?
a 1438.5kg
b 1428.6kg
c 1328.6kg
d 1421.6kg

Answers

Answer:

C

What is the answer please help her

In a circult, a battery is used to

1. slow down current
2. conduct current
3. raise the potential of electrons
4. convert electrical energy into some other form of energy

Answers

Answer:

4. convert electrical energy into some other form of energy

I might be wrong, but I think that it’s 4. Convert electrical energy into some other form of energy.

1. What are three things you think of when you think of energy?

Answers

Answer:

Food, wind, water.

Explanation:

This is supposed to be a personalized question so I answered with things that can make/give energy.

Answer:

This is personal question, very interesting! Depend on who is the person, where the person is working at, how old is that person - we can have various answers.

Personally, I think first about that human and other animals needs energy to survive, that means we need to eat, to drink; The plants need energy to survive too - that is the energy from the Sun.

Secondly, the human being needs such types of energy as electricity, wind, solar energy, etc. in oder to live. Even the acient people learnt to use solar and wind and water - natural energy from the nature.

Thirdly, the human being needs spiritual energy to have a good life.

Another specific terms of energy related to physics and chemistry, and even biology - actually are not in my mind in everyday life.

Explanation:

what is mass times acceleration?

Answers

Answer:

Force

Explanation:

The mass of an object is the quantity of matter it contains. It is measured in kilograms.

Acceleration is the ratio of the change in the velocity of an object to the change in time. It is measured in m/[tex]s^{2}[/tex].

When the mass of an object is multiplied with its acceleration, this gives the average force applied on the object. As force is defined as agent that can change the state of an object.

i.e     F = m × a

where F is the force, m is the mass of the object and a its acceleration.

The two major classes of force are; contact force and field force.

What does ROCAPV mean?

Answers

Answer:  Rancho de Area Comunes PV

Explanation: it means

Rancho de Area Comunes PV

In an AC Monte Roca PV System Profile, where the following are depicted:

Location

Commissioning

Production

Operator

PV system power

Module

And communication.

Match each type ol energy with its description
chemical
electrical
sound
nuclear
mechanical
A type of potential energy stored inside atoms
Boccurs when a vibrating object's kinetic energy moves through matter in waves
C possessed by substances that do work through chemical reactions
D kinetle energy of charged particles called electrons
energy of moving objects

Answers

Answer:

B

Explanation: yes

Two sounds are played for you. The first has a frequency of 196 Hz. The second has a frequency of 392 Hz. Which sound will be "higher" to your ear?
A) The First
B) The Second
C) They will sound the same

Answers

Answer:

The second one, the higher the hertz the higher the frequency we hear

Explanation:

The diagram shows the field lines near the poles, X and Y, of two magnets.

At left a rectangular box with the long horizontal side labeled X. At right a rectangular box with the long horizontal side labeled Y. There is a gap between the boxes. Curved lines with arrowheads emerge from the right end of X and the left end of Y and point up and down.
Based on the field lines, what are the poles of the magnets?

X: north
Y: south

X: south
Y: north

X: north
Y: north

X: south
Y: south

Answers

Answer:  I think it is C

Explanation: sorry if it wrong

Answer:

C

Explanation:

got it right on edge

What of the following does NOT influence resistance? *
A.thickness of wire
B.temperature
C.material of wire
D.Number of components

Answers

Answer:

D. Number of components

Explanation:

Answer:

D. Number of components

Explanation: hope this helps :)

A charged particle is placed in a space. The particle experiences a force. What can be concluded?

A.
The space contains a magnetic field.
B.
The space contains an electric field.
C.
The space has a charge opposite to the particle's.
D.
Oppositely charged particles must be present.

Answers

Answer: A.

The space contains a magnetic field

Explanation:

A charged particle is surrounded by electric field and exerts force on other charges in the field, attracting or repelling them. 

But a charged particles in a magnetic field can escape into infinity without ever stopping due to magnetic force. We can therefore conclude that the space contains a magnetic field

Answer:

Explanation:

B

What is the focal length of a lens if an object placed 3.28 cm from the lens produces an image that is 4.11 cm in front of the lens?

Answers

Answer:

1.82 cm

Explanation:

The relationship between the object distance (p), image distance (q) and focal length (f) is given by [tex]\frac{1}{p}+\frac{1}{q}=\frac{1}{f}[/tex]

According to question,

Object distance (p) = 3.28 cm

Image distance (q) = 4.11 cm

Therefore,

[tex]\frac{1}{3.28}+\frac{1}{4.11}=\frac{1}{f}\\\frac{3.28+4.11}{3.28\times 4.11}=\frac{1}{f}\\f=\frac{3.28\times 4.11}{3.28+4.11}\\=\frac{13.48}{7.39}\\=1.82\,\,cm[/tex]

What is the volume of this rectangular prism?
1/4cm 1/3cm 1/2cm​

Answers

Answer:

1/24

Explanation:

1/4 * 1/3 * 1/2 = 1/24

Answer:

1/24

Explanation:

Charge q is 1 unit of distance away from the source charge S. Charge p is four times further away. The force exerted
between S and q is ___ the force exerted between S and p.

1/4
1/16
16 times
4 times

Answers

I’m pretty sure the answer is A: 1/4

Identify the following equation: H2 - 2H+ + 2e
A. oxidation
B. reduction
C. redox
D. none of the above

Answers

Answer:

(A.) H2 --> 2H+ 2 e- (oxidation)

Explanation:

A. oxidation is the removal of electron(s) from a substance. This is the case here, since AFTER the reaction you can see that there were electons "removed" from H2.

H2 --> 2H+ 2 e- (oxidation)

B. reduction is the addition of electron(s) to a substance

1/2 O2 + 2 e- + 2H+ --> H2O (reduction)

By the way:

Biochemical reactions often involve the transfer of complete hydrogen atoms, meaning an electron and a proton.

The substance oxidized (H2) is electron donor.

The substance reduced (O2) is electron acceptor.

Just remember this:

Prior to the reaction, the e donor is always reduced.

Prior to the reaction, the e acceptor is always oxidized.

What is the advantage of the SI unit over CGS units?
Help me ...
answer it as fast as you can...​

Answers

Answer:

The advantage of the SI unit over CGS unit are:

S.I has broader base. It has seven base units and two supplementary units.S.I is metric.S.I is coherent.S.I is rational, i.e. it gives one unit for one physical quantity .e g. for energy of any type i.e, mechanical or heat or electrical.There is only one unit Joule(J) but in M.K.S system unit for mechanical energy is joule.

HOPE IT WILL HELP YOU

Units of measurements

The advantage that SI unit has over CGI is that it has only one unit for each measurement

Explanation:

CGS: Also known as Gaussian units

Length is measure in cm (centimeter)

Mass is measured in g (gram)

Time is measured in s (second).

SI unit: The International System of Units

Length is measure in meter (m)

Mass is measured in kilogram (kg)

Time is measured in seconds (s)

In summary with the SI unit student do not need to store any conversion factors in memory

What is the kinetic energy of a bicylcle with a mass of 15 kg traveling at a velocity of 3 m/s?​

Answers

KE = 0.5 x mv^2

Kinetic energy equals 1/2 times mass times velocity squared.

Mass = 15kg

Velocity = 3m/s

Plug it into the formula.

KE = 0.5 x 15(3^2)

KE = 0.5 x 15(9)

Multiply the mass and velocity squared.

KE = 0.5 x 135

Then, multiply the result by 1/2 or 0.5

KE = 67.5

The kinetic energy of a bicycle that has a mass of 15kg and travels at 3m/s is 67.5J.

Answer:

67.5 J

Explanation:

Kinetic energy can be found using the following formula.

[tex]KE=\frac{1}{2}mv^2[/tex]

where m is the mass in kilograms and v is the velocity in m/s.

We know the bike has a mass of 15 kilograms. We also know the velocity is 3 m/s. Therefore, we can substitute 15 for m and 3 for v

[tex]KE=\frac{1}{2}*15*3^2[/tex]

Evaluate the exponent first. 3^2 is the same as 3*3, which is equal to 9.

[tex]KE=\frac{1}{2} *15*9[/tex]

Multiply 15 and 9.

[tex]KE=\frac{1}{2} *135[/tex]

Multiply 1/2 and 135

[tex]KE=67.5[/tex]

Add appropriate units. Kinetic energy uses Joules or J as the units.

[tex]KE= 67.5 Joules[/tex]

The kinetic energy of the bike is 67.5 Joules

An electric motor converts electrical energy into energy.

Answers

Answer:

into mechanical energy

...........,.

Mechanical energy it’ll turn into mechanical


When light rays appear to be coming from behind a mirror, what type of image has been formed?
A.imaginary
B.real
C.plane
D.virtual

Answers

Answer:

The answer ...........may be D.

Sound is a type of mechanical wave and must have a medium through which to travel. Sound will move at different speeds when which of the following occurs?
A. The sound is fully absorbed in an object.

B. The sound moves from air to water.

C. The sound pitch increases.

D. The sound is reflected off a surface.

Answers

Hey there!

The answer would be B. The sound moves from air to water.

Sound travels through different mediums. It goes fastest in solids, a little slower in liquids, and slowest in air. Sound is a very fast wave, but remember that mediums can differ that. In a vacuum space, there is no sound at all. (ex. outer space)

Hope this helps !

How does planting high yield crop varieties make farming more sustainable

Answers

Answer:

The more high yield crops are planted, the more production there will be from plants.

Explanation:

High-yield plants are plants that are genetically modified or modified artificially in a way that makes farming plants more efficient. More crops grow, therefore more money.

The answer is, the more high-yield plants there are, the more efficiency there will be from farming.

Answer:

Its D

Explanation:

my options were these

A. It increases the amount of water needed

B. It keeps soil fertility from diminishing over time

C. It keeps chemicals form entering the watershed

D. It decreases the amount of land needed

TRUE or FALSE? If an object moves in a circle at a constant speed, its velocity vector will be constant. Explain your answer.

Answers

the velocity will change since the direction changes. what is the relationship between velocity and acceleration in a circle.

After nuclear explosions animals and humans can continue to die due to ingestion of radioactive particles and nuclear ______________.

fallout

rainout

whiteout

Answers

The answer is fallout pls give brainliest if this helped

Which is true about density?
A. A possible unit for density is grams.
B. Liquid gold is denser than solid gold.
C. Density is found by multiplying mass
and volume.
D. Density is independent of the
amount of the sample.

Answers

Answer:

Density is independent of the

amount of the sample. (D)

Explanation:

Because density is an intrinsic property of matter.

hope it helps!

Answer:

D. Density is independent of the

amount of the sample.

Explanation:

Density is expressed in units of mass per volume, such as g/mL or kg/m3. Because the density of a substance does not depend on the amount of substance present, density is an “intensive property”. To measure the density of a sample of material, both the mass and volume of the sample must be determined.

Hope this Helps, Pls mark as the Brainliest

What is the speed of a high-speed electron traveling at right angles to a 0.80-tesla magnetic field with a force of -7.5 x 10^-12 newtons? The charge of an electron is 1.60 x 10^-19

Answers

Explanation:

Answer:

Magnetic field, B = 0.016 Tesla

Explanation:

It is given that,

Velocity of electron, v=9.6\times 10^5\ m/sv=9.6×10

5

m/s

Magnetic force, F=2.6\times 10^{-15}\ NF=2.6×10

−15

N

Charge, q=1.6\times 10^{-19}\ Nq=1.6×10

−19

N

The magnetic force is given by :

F=qvBF=qvB

B=\dfrac{F}{qv}B=

qv

F

B=\dfrac{2.6\times 10^{-15}}{1.6\times 10^{-19}\times 9.6\times 10^5}B=

1.6×10

−19

×9.6×10

5

2.6×10

−15

B=0.016\ TB=0.016 T

So, the magnitude of magnetic field is 0.016 Tesla. Hence, this is the required solution.

Answer:

F = q  v B so v = F/q B

v = -7.5 × 10-12/(-1.60 × 10-19) (0.80) = 5.9 × 107 m/s

Explanation:

What is used in the name of ionic compounds containing a cation with multiple charges to indicate which charge?
(No answers to display)

Answers

Answer:

Roman Numerals?

Explanation:

Iron(II), would be iron 2+

iron(III), would be iron 3+

for example.

3. Which of the following is an example of a
supplemental restraint system?
(a) air bag
(c) lap and shoulder belt
(b) safety belt
(d) antilock brakes

Answers

Answer:

A) air bag is your answer

Answer:

air bag

Explanation:

Any of several restraining systems in a vehicle, such as an airbag, in addition to the seatbelts.

A pendulum reaches a height of 0.3 m at the top of its swing. If the
bob has a mass of 5 kg, what is the potential energy at the top of its
swing?
Select one:
14.7)
7.35 J
0.45 J
1.5 J

Answers

Answer: A

Potential energy = 14.7 J

Explanation:

Given that the

Mass M = 5 kg

Height h = 0.3 m

Let us take acceleration due to gravity g = 9.81 m/s^2

Potential energy = mgh

Substitute all the parameters into the formula above

P.E = 5 × 9.81 × 0.3

P.E = 14.715 J

P.E = 14.7 J approximately

The correct option is therefore A

A 50-kg object is accelerating to the right at 10 m/s². What is the magnitude of the rightward net force acting
on it (in Newtons)?

Answers

Answer:

I'm confused did you not get an answer at all

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