3. What is the role of neutrons in the nucleus?
Answer:
The main role of neutrons is to reduce electrostatic repulsion inside the nucleus.
Explanation:
:) Good luck my friend
4
Select the correct answer.
What does the number, or density, of field lines on a source charge indicate?
OA
direction of charge on the source charge
B.
amount of charge on the test charge
Oc.
amount of charge on the source charge
OD
direction of charge on the test charge
Reset
Next
Answer:
C. amount of charge on the source charge.
Explanation:
Electric field lines can be defined as a graphical representation of the vector field or electric field.
Basically, it was first introduced by Michael Faraday and it is typically a curve drawn to the tangent of a point is in the direction of the net field acting on each point.
The number, or density, of field lines on a source charge indicate the amount of charge on the source charge. Therefore, the density of field lines on a source charge is directly proportional to quantity of charge on the source.
Write the cautions which are taken to keep the magnetic properties of magnetsa) Don’t hammer it b) don’t drop it c) don’t heat it d) all of these
PLS HELP GUYS ITS URGENTTT!! I AM IN CLASS ...PLEASE!!
Answer:
D
Explanation:
These all can impact the magnetic properties
What is the reason so many poisonings go undetected at first?
Alex rides on a bike that starts from rest and accelerates to a speed of 20 m/s in 8 seconds. What is Alex’s acceleration?
Answer:
20m/s
Explanation:
Alex's acceleration is also Alex speed
A mouse ran 25.45 meters in 11 seconds, stopped for 5 seconds to eat a piece of cheese, ran 2.5 meters in 1.2 seconds to hide behind a shelf, and finally ran another 9 seconds a distance of 15 meters to its home. Calculate the average speed of the mouse in m/s.
A 31 kg object is experiencing a net force of 25 N while traveling in a circle of radius 25m. What is its velocity?
Answer:
4.5m/s
Explanation:
Given parameters:
Mass of object = 31kg
Net force = 25N
radius = 25m
Unknown:
Velocity = ?
Solution:
To solve this problem, we must understand that the net force here is a centripetal force.
F = [tex]\frac{mv^{2} }{r}[/tex]
F is the centripetal force
m is the mass
v is the velocity
m is the mass
25 = [tex]\frac{31 x v^{2} }{25}[/tex]
31v² = 625
v² = 20.2
v = 4.5m/s
A car is traveling on the highway at 28 m/s The driver sees a tree in the middle of the road and slams on the brakes. The car comes to a complete stop over a distance of 35 meters. What was the acceleration of the car as it was coming to a stop?
Answer:what are the answer options?
Explanation
What are the layers of the Sun, starting from the center and moving outward?
Answer:
There are three main parts to the Sun's interior: the core, the radiative zone, and the convective zone. The core is at the center. It the hottest region, where the nuclear fusion reactions that power the Sun occur. Moving outward, next comes the radiative (or radiation) zone.
Answer:
B.core, radiative zone, convective zone, and photosphere
Explanation:
Edge 2021
pls answer fast and correct i will give brainlest who ever gets it correct
The boy’s skateboard trips on the stairs and comes to a stop. This shows inertia because:
If a force of 0.05 N acts on a body of mass 100 grams. Determine the acceleration at which that body moves.
Answer:
a=f/m=0.05/0.1kg
Explanation:
calculate it
hope I helped
Asubstance is cut into several piece and computered to the density of the original sample the density of each piece will be
A compass can be used to determine the presence of charge flow in a circuit.
-true
-false. only the bulbs can tell you if there is charge flow.
Answer:
False
Explanation:
A compass can be used to determine relative direction but not absolute direction.
How much energy is transferred when the potential difference is 12V and the charge is 7.5C?
The energy is transferred when the potential difference is 12 volts and the charge is 7.5 C is 90 Joules.
What is energy?
In physics, energy is the capacity to carry out work. It might be potential, kinetic, thermal, electrical, chemical, radioactive, etc., among other types. Heat and work are other examples of energy being transferred from one body to another. Once it has been transmitted, energy is always allotted according to its nature. As a result, heat transmission could result in thermal energy while effort could provide mechanical energy.
Given the information in the question:
The potential difference, V = 12 Volts,
The charge, q = 7.5 C,
Calculate the energy, E by the formula given below,
E = [tex]VQ[/tex]
Substitute the values of charge and potential difference,
E = [tex]12*7.5[/tex]
E = [tex]90 Joules[/tex]
Therefore, the energy is transferred when the potential difference is 12 volts and the charge is 7.5 C is 90 Joules.
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The SI unit for energy is Newton true or false
Explanation:
false....it is joules
..........
The answer is false
The SI unit for energy is joules and not Newton. Energy can be described as the capability of an individual to perform work. Every day all living things carry out one form of work or the other. These might include walking, running, cooking, singing, driving etc. All these activities require energy, some require a whole lot of energy.
This is why the importance of energy for our day to day activities cannot be over emphasized.
Hence the SI UNIT for energy is joules.
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A ball is dropped over the edge of a building. How fast is the ball moving 2.0 seconds
after being dropped?
Answer:-20.m/s,drum
Explanation:
A 65 kg student sits 3 m away from a 70 kg student. What is the magnitude of the gravitational force between the two students?
Answer:
[tex]F=3.37\times 10^{-8}\ N[/tex]
Explanation:
Given that,
Mass of student 1, m₁ = 65 kg
Mass of student 2, m₂ = 70 kg
The distance between the students, d = 3 m
We need to find the magnitude of the gravitational force between the two students. The formula for the magnitude of the gravitational force between two masses is given by :
[tex]F=G\dfrac{m_1m_2}{d^2}\\\\F=6.67\times 10^{-11}\times \dfrac{65\times 70}{(3)^2}\\F=3.37\times 10^{-8}\ N[/tex]
So, the gravitational force between the two students is [tex]3.37\times 10^{-8}\ N[/tex].
What happens when light runs into object
Explanation:
It depends on the object, actually. If the object is transparent or somewhat clear, the the light will end up refracting, or bending, through those clear objects. It can also bounce off objects, too. But, with some objects, the light can be blocked, or absorbed.
Answer:
See down below
Explanation:
When light hits glass or any other transparent material, it pass though. Some light is reflected off the object whereas the rest passes through and is refracted. As light passes through air and into another clear material it changes speed, and light is both reflected and refracted by the glass.When the light runs into a sold object, it prevents from going through it.
Lightning flashes and you hear a thunder clap for seconds later. the velocity of sound is 340 m/s. how far away did lightning strike ?
Answer:
For metric-system conversions, follow this method: Sound travels at about 340 m/s, so multiply the number of seconds you counted by 340, and you'll know how many meters away lightning struck. A three-second count, then, would place the lightning strike about 1,020 m away, or roughly 1 km.
Explanation:
hope it hep and if it doesnt sorry
The distance struck by the lighting flashes is 680 m.
The given parameters;
time taken to hear the thunder clap, t = 4 svelocity of sound, v = 340 m/sThe distance struck by the lighting is calculated by applying the principle of echo as follows;
[tex]v = \frac{2d}{t} \\\\2d = vt\\\\d = \frac{vt}{2} \\\\d = \frac{340 \times 4}{2} \\\\d = 680 \ m[/tex]
Thus, the distance struck by the lighting flashes is 680 m.
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Can you please help me figure out the work for the missing quantities?
Answer: set up proportions
Explanation:
HELPPPPP!!! ASAPPPP!!!!
What is one disadvantage of cooperative approach to game strategy?
Collaborating on strategy during practice reveals some plans your team had not considered.
If everyone gets to suggest a strategy during a game, it may confuse the team’s focus.
Listening to everyone’s ideas for improving practice results in better game play.
Each player becomes highly skilled at one or two positions.
Answer: The first one
Explanation:
as speed (velocity) increases, potential energy increases true or false
Answer:
true
Explanation:
The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system?
A
respiratory
B
integumentary
C
excretory
D
immune
bonus question fredo bang or nba young boy
pls help me 6th grade science second two pics are the possible answers
Answer:
C
Explanation:
Plotting the data points would get the graph closest to C
Nearly all volcano and earthquakes activity happen where
the law of conservation of momentum states that, if left alone what happens to the total momentum of two interacting objects that make up a system
Answer:
It remains the same
Explanation:
At any point in time the total momentum of two objects interacting remains the same
This follows the laws of space(space is uniform)
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just did the quick check UwU
A car has an acceleration of 1.5 m/s2. A net force of 2100 N is acting on the car. What is the mass of the car?
Answer:
Given
acceleration (a) =1.5ms2
Force(F) =2100N
R. t. c mass (m) =?
Form
F=ma(divided by m both sides)
m=F/a
m=2100/105
m=1400kg
mass of car =1400kg
Answer:1400kg
Explanation:
Please write in complete sentences.
How does density affect refraction?
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from the air through a diamond.
answer both questions
(1.) The Phenomena of Refraction Occurs when a Ray (Here Light) enters a Relatively Denser or Rarer Medium and Due to the Change in Density, the Speed of the Incident Ray Decreases or Increases Respectively.
(2.) If a light ray projected through a diamond, the light would refract drastically.
The position of galaxies in the universe was once hypothesized to be
constant, but evidence gathered by Edwin Hubble indicated that many
galaxies are actually racing away from Earth at high speeds. Which
statement is best supported by this discovery?
A. Science is a body of knowledge that is a subject to change based on data.
B. A hypothesis can become a law.
C. Science is a body of knowledge based on the work of well-known scientists.
D. A hypothesis is the correct answer to a problem.
The position of galaxies in the universe was once hypothesized to be
constant, but evidence gathered by Edwin Hubble indicated that many
galaxies are actually racing away from Earth at high speeds. the
statement that is best supported by this discovery is Science is a body of knowledge that is subject to change based on data, therefore the correct answer is option A
What is the scientific claim?Scientific claims are statements made in science based on an experiment.
These Scientific claims are backed by the experimental data and their true results obtained from scientific investigation and experimentation.
The position of galaxies in the universe was once thought to be fixed, but Edwin Hubble's observations revealed that many galaxies are actually moving away from Earth quickly. The conclusion that this discovery best supports is that science is a body of knowledge that is subject to change based on data, so option A is the appropriate answer.
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which structure is larger cell, organ , multicellular or cell structure
Answer:
organ is larger cell..............
Answer:
organ
Explanation: