which of the following are features of the nucleus of an atom
finding evidence to support or dispove is how science advanes

Answers

Answer 1
We r made of atom so v can’t touch anything hehe I just joking

Related Questions

Why does gravity on Earth have a stronger attraction with you than the sun has with you? Plsssssss help I really need this rn

Answers

Answer:

Although the Earth has a lesser mass than the Sun, it is far closer to you, allowing for a stronger pull.

Explanation:

When a force is applied to an object, no work is being preformed on the object unless the object____.

Answers

No work is being performed on the object unless the object is moving, as work done = force x distance

Someone plz give me some boy advice I really need it.

Answers

If your wanting to know how to talk to them, just act like you know them really well be very causal and be confident in what you say, they also like it when you make the first move to talk to them

Your mother asks you to carry a load of wood to the fireplace and lower it to the hearth. In doing this you have used your arms as levers. Which statement describes this as a class three lever?





Question 13 options:

The wood in your hands was the fulcrum, the load your elbow, and the effort (input force) was supplied by your arm muscles.


The wood was the load in your hands, the fulcrum was your elbow and the effort (input force was supplied by your arm muscles.


The fulcrum was the muscles in your arms, the load was the wood in your hands and the effort (input force) was the elbow.

Answers

Answer: The correct answer is the weight of the wood.

Explanation:

Hope this helps

A car accelerates from 10m/s to 22m/s in 10 seconds. What is the car’s acceleration?

A skydiver falls from an airplane and achieves a speed of 98m/s after 10 seconds. the starting speed is 0m/s.

Explain please.

Answers

Answer:

See attachment and below

Explanation:

A car accelerates from 10m/s to 22m/s in 10 seconds.

a = (22m/s - 10m/s)/10sec

a = 12m/s/10s

a = 1.2 m/s^2

A skydiver falls from an airplane and achieves a speed of 98m/s after 10 seconds. the starting speed is 0m/s

a = 98m/s - 0m/s)/10sec

a = 9.8 m/s^2

9.8 meters/sec^2 is the acceleration due to gravity.

A 5.00 kg crate is on a 21.0 degree hill. Using X-Y axes tilted down the plane, what are the X AND Y components of the NORMAL FORCE?

Answers

Answer:

y-component = 45.75N

x-component = 0N

Explanation:

A pitcher throws a softball toward home plate. When the ball hits the catcher’s mitt, its horizontal velocity is 32 meters/second. The softball’s velocity goes to 0 meters/second in 0. 8 seconds when caught. If the softball has a mass of 0. 2 kilograms, what’s the force of the impact? Use F = ma, where. The force of the impact is newtons.

Answers

The force of impact of the softball at the given conditions is 8 N.

The given parameters:

Horizontal velocity of the ball, v = 32 m/sChange in time of motion of the ball, Δt = 0.8 sMass of the ball, m = 0.2 kg

The force of impact of the softball is calculated by applying Newton's second law of motion as follows;

[tex]F = ma\\\\F = m \times \frac{\Delta v}{\Delta t} \\\\F = 0.2 \times \frac{32 - 0}{0.8 - 0} \\\\F = \frac{0.2 \times 32}{0.8} \\\\F = 8 \ N[/tex]

Thus, the force of impact of the softball at the given conditions is 8 N.

Learn more about Newton's second law of motion here: https://brainly.com/question/25307325

Scientists suggest that the universe is still expanding. Which statement supports the claim made by the scientists?
The universe is 13.7 billion years old.
The galaxies in the universe are composed of dark matter.
The universe originated from a hot, dense point.
The galaxies in the universe are moving away from Earth at high speeds.

Answers

Answer:

The galaxies in the universe are moving away from Earth at high speeds.

Explanation:

Light years.

can someone explain why is the answer 3.1?​

Answers

i dont know  Im sorry but why Im messaging is because when more people respond it usually is the first to pop up so someone else will see this and be able to help you            Explanation:

What is the final velocity of an object that starts from rest and travels for 5 seconds at an acceleration of 4.3 m/s2? ____________________

Answers

The final velocity of an object that starts from rest and travels for 5 seconds at an acceleration of 4.3 m/s² is 21.5m/s.

EQUATION OF MOTION:

The final velocity of a moving object can be calculated by using one of the equations of motion as follows:

V = u + at

Where;

V = final velocity (m/s)u = initial velocity (m/s)a = acceleration (m/s²)t = time (s)

According to this question,

t = 5sa = 4.3m/s²u = 0 m/s (at rest)v = ?

v = 0 + 4.3(5)

v = 21.5m/s.

Therefore, the final velocity of an object that starts from rest and travels for 5 seconds at an acceleration of 4.3 m/s² is 21.5m/s.

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A student on a bicycle decided to determine his acceleration when coasting down a steep hill. The student started from a full stop and reached a velocity of 8.75 m/s in 3.8 s. What was his average acceleration? Assume that downhill is the positive direction.

Answers

Answer:

A=2.2

Explanation:

You have to lay everything out first.

You are given the:

Velocity and the time

V=8.75m/s

t=3.8s  

Now you need to know what you are looking for, and that is the average acceleration.

Write down the formula (teachers like this)

A=v/t

Now calculate:

8.75/3.8= 2.3026315789473

You can now round down since the number next to the decimal is below 5

The number of significant digits will be 2 because that is the lowest number in the question. This means you will only need to display 2 numbers.

The final answer will be:

A=2.2

:)

*make sure to show your work step by step, some nice teachers give extra marks for that*

I hope this helped, goodluck! :D

Can someone please help me with number 10

Answers

Answer:

A

Explanation:

increase

Answer:

B???

Explanation:

The rate of it going up is lower than L

It might be D too.

I don't understand when to use the formule with the constant k, and when to use the formula without it.

In the exercise that i sent here, they use the formule with a constant but I don't get why.

Can someone help me out please?
Thanks.

Answers

Answer:

This appears to be the formula for the electrical force between 2 objects.

You need this constant to calculate the electrical force between 2 charged objects.

Note that k = (1 / 4 * π ∈0)

∈0 is called the permittivity constant and ∈0 = 8.85E-12 farad/m

k = ( 1 / (4 * 3.28 * 8.85E-12) = 8.99E9

This makes F reasonably easy to remember as

F = 9E9 Q1 * Q2 / R^2 Newtons for the electrical force between Q! and Q2 separated by R

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head on collision with a 14.0 kg raft moving to the right at 16.0 m/s after the collision the raft moves to the left at 14.4 m/s assuming water simulates a frictionless surface, what is the final velocity of the canoe?

Answers

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head on collision with a 14.0 kg raft moving to the right at 16.0 m/s. After the collision the raft moves to the left at 14.4 m/s assuming water simulates a frictionless surface. Mass of the canoe (m1) = 16 KgMass of the raft (m2) = 14 KgInitial velocity of the canoe (u1) = 12.5 m/sInitial velocity of the raft (u1) = - 16 m/s [Here, the raft's velocity is negative, because the objects are moving in the opposite direction]Total momentum of the system = m1u1 + m2u2 = [(16 × 12.5) + (14 × -16)] Kg m/s = (200 - 224) Kg m/s = -24 Kg m/sFinal velocity of the raft (v2) = 14.4 m/sLet the final velocity of the canoe be v1.Total momentum of the system after the impact = m1v1 + m2v2 = [(16 × v1) + (14 × 14.4)] Kg m/s = 16v1 Kg + 201.6 Kg m/sAccording to the law of conservation of momentum, Total momentum of the system before the impact = Total momentum of the system after the impactor, -24 Kg m/s = 16v1 Kg + 201.6 Kg m/sor, -24 Kg m/s - 201.6 Kg m/s = 16v1 Kgor, -225.6 Kg m/s = 16v1 Kgor, v1 = -225.6 Kg m/s ÷ 16 Kgor, v1 = -14.1 m/s

Answer:

The final velocity of the canoe is -14.1 m/s or 14.1 m/s to the right.

Hope you could get an idea from here.

Doubt clarification - use comment section.

A dog is pulling an empty sled attached by a harness that is parallel to the
ground in the snow. The sled is moving with constant velocity. The mass of
the sled is 1.2 kg, and the coefficient of static friction is 0.20. Determine the
harness tension.

Answers

Answer:

Explanation:

There are only two forces causing motion involved. They oppose each other. You know this because there is no acceleration of the sled: you see only a velocity.

The formula when friction is involved is

Fnet = T - mu*Normal

mu is the frictional coefficient

The normal is the downward force caused by the mass of the sled being pulled down by the gravitational constant.

The tension is brought about by the dog pulling in the opposite direction to the frictional force.

The frictional force, oddly, acts in a horizontal direction even though the normal is vertical. It does this because friction always opposes motion.

Since there is no acceleration, the net force = 0

N= m * a_g

m = 1.2 kg

a_g = 9.8

N = 1.2 * 9.8

N = 11.76

The frictional force = mu*Normal Force.

Ff = N * mu

N = 11.76

mu = 0.2

Ff = 0.2 * 11.76

Ff = 2.35

As stated The frictional force and the Tension are equal but in opposite directions

T = 2.35

A balance of forces is demonstrated by an object which is slowing to a stop true or false

Answers

Answer:

its true since i already did this last year, if i am wrong i apologize

Explanation:

A box slides across a rough surface, eventually coming to rest.
Part A
a. Use the work-energy principle (Khan Academy:Work and the work-Energy Principle and the definition of work to explain why the box comes to rest.

b. Explain how the motion of the box is consistent with the Law of Conservation of Energy.

Answers

Answer:

he was a random act like you to be the first time I see is a great day and night to get a very happy to see you soon I hope that the world is not the same thing to say about this

a) When a box slides across a rough surface, eventually coming to rest, its kinetic energy is used during work done against frictional resistance force.

b) This work done is stored in the box as a potential energy. Thus the motion of the box is consistent with the Law of Conservation of Energy.

What is  work-Energy Principle?

According to the work-energy theorem, the work done by the net force acting on a body equals the change in kinetic energy.

It can simply be written as:

Work done = initial kinetic energy - final kinetic energy

The work energy theorem equation is the one presented above.

Now when a box slides across a rough surface, eventually coming to rest, frictional force comes into play. This force is opposite to the direction of motion of the box. Hence, the kinetic energy of the box is used during work done against frictional resistance force and stored in the box as a potential energy and thus  Law of Conservation of Energy followed.

Learn more about energy here:

https://brainly.com/question/1932868

#SPJ2

A rocket burns fuel at a rate of 239 kg/s
and exhausts the gas at a relative speed of
6 km/s.
Find the thrust of the rocket.
Answer in units of MN.

Answers

The Thrust on the rocket is 1.434 MN.

To calculate the thrust of a rocket, we use the formula below

Thrust: This is the force that moves an aircraft through the air.

⇒Formula

T = M'×v.................... Equation 1

⇒ Where:

T = Thrust of the rocketM' = Fuel ejection ratev = gas exhaust velocity

From the question,

⇒ Given:

M' = 239 kg/sv = 60 km/s = 6000 m/s

⇒ Substitute these values into equation 1

T = 239(6000)T = 1434000 NT = 1.434 MN

Hence, the Thrust on the rocket is 1.434 MN.

Learn more about Thrust here: https://brainly.com/question/13501791

e. Observe: notice or perceive

f. Infer:
g. Repetition:
h. Replication:
i. Data

Answers

The synonym of a word( observe, infer, repetition, replication and data) means another word that is nearest in meaning to the given word.

The synonym of the words given from the question is given below:

Observe: This means to notice or perceive something. Therefore the synonym is notice or perceive.

Infer: This means to conclude something based on evidence and not from explicit statements. Therefore the synonym is deduce or conclude.

Repetition: This means doing or saying something again. Therefore the synonym is recurrence.

Replication: This means the process of reproduction. Therefore the synonym is duplicate.

Data: This means information that is used to make decisions. The synonym is facts.

Therefore, synonym of a word means another word that is nearest in meaning to the given word.

Learn more about data here:

https://brainly.com/question/13171394

Porque la densidad de un solido es alta?

Answers

[tex] \large \sf{hola \: amigo ♡ }[/tex]

Porque, las partículas en los sólidos están muy juntas. Están empaquetados herméticamente, dando a los sólidos altas densidades.

espero que ayude ♡♡

how far will an object fall in 3 seconds

Answers

Answer:

144.7832 ft

Explanation:

heres the formula i found to solve

v = v₀ + gt

where:

v₀ is the initial velocity (measured in m/s or ft/s);

t stands for the fall time (measured in seconds); and

g is the free fall acceleration (expressed in m/s² or ft/s²).

Without the effect of air resistance, each object in free fall would keep accelerating by 9.80665 m/s (approximately equal to 32.17405 ft/s) every second. In reality, though, a falling object's velocity is constrained by a value called the terminal velocity.

im sorry i couldnt provide more information, but there was not much info provided in the question itself

Mars is 7.83x10^10m [^10 is an exponent] from planet earth. The planet Earth is 5.98x10^24kg [^24 is an exponent] while Mars has a mass of 6.42x10^23kg [^23 is an exponent]. What is the gravitational attraction between the two planets? G=6.67×10^-11 (-11 is an exponent)​

Answers

Answer: 2

Explanation: Because if you add 1  to 8 you get 9 then subtract 9 by 7 then and your answer is

Starting from rest an object accelerates on a straight line at rate of 2ms‐² for 10 seconds. what is the speed of the object at the end of the 10 seconds ​

Answers

Answer:

20 meters/sec

Explanation:

See attachment.

2m/s^2 = (v - 0)/10s

v = 20 m/s

Why is kinetic energy lost in an inelastic collision?

Answers

Answer:

This is because some kinetic energy had been transferred to something else.

Explanation:

An inelastic collision is a collision in which there is a loss of kinetic energy. While momentum of the system is conserved in an inelastic collision, kinetic energy is not.

how is one kg mass defined in SI system​

Answers

Answer:

It is originally defined as the mass of one liter (10-3 cubic meter) of pure water.

The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10-34 when expressed in the unit J s, which is equal to kg m2 s -1 , where the meter and the second are defined in terms of c and ∆νCs.

What is the weight of sugar if 5% of sugar from 6g of sugar

Answers

5/100= 0.05 (I convert the percentage to decimal to determine the weight of sugar)

0.05x6 = 0.3 g

Pravat exerts a force of 30 N to lift a bag of groceries 0. 5 m. How much work did Pravat do on the bag? Note : Work = Force x Distance 0 J 15 J 30 J 60 J.

Answers

Answer:

15 J

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 30 × 0.5 = 15

We have the final answer as

15 J

Hope this helps you

The amount of work done by Pravat if he exerts a force of 30 N to lift a bag of groceries 0.5m is 15J.

WORK DONE:

The work done by a body can be calculated by multiplying the force exerted by the distance moved. That is;

Work done = force (F) × distance (m)

According to this question, Pravat exerts a force of 30N to lift a bag of groceries 0.5 m. The work done is calculated as follows:

Work done = 30N × 0.5m

Work done = 15J

Therefore, the amount of work done by Pravat if he exerts a force of 30 N to lift a bag of groceries 0.5m is 15J.

Learn more about work done at: https://brainly.com/question/8119756?referrer=searchResults

Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? 8. 6 m/s 5. 7 m/s â€"5. 7 m/s â€"8. 6 m/s.

Answers

This question involves the concepts of the law of conservation of momentum and velocity.

The velocity of the eight ball is "5.7 m/s".

According to the law of conservation of momentum:

[tex]m_1u_1+m_2u_2=m_1v_1+m_2v_2[/tex]

where,

m₁ = mass of number three ball = 5 g

m₂ = mass of the eight ball = 6 g

u₁ = velocity of the number three ball = 3 m/s

u₂ = velocity of the eight ball = - 1 m/s (negative sign due to opposite direction)

v₁ = final velocity of the three number ball = - 5 m/s

v₂ = final velocity of the eight ball = ?

Therefore,

(5 g)(3 m/s) + (6 g)(- 1 m/s) = (5 g)(- 5 m/s) + (6 g)(v₂)

[tex]v_2=\frac{34\ g.m/s}{6\ g}\\\\[/tex]

v₂ = 5.7 m/s

Learn more about the law of conservation of momentum here:

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Which of the balls will exert the smallest force on object A?Why

Answers

The 1kg ball would exert the smallest force.

As force = mass x gravity, this means that the smaller the mass (kg), the lesser the force.

When the mass is lighter (1kg):

Force = mass x gravity
Force = 1 x 9.8
Force = 9.8N

Compared to when the mass is heavier (10kg)

Force = mass x gravity
Force = 10 x 9.8
Force = 98N

Where this proves that the lighter the mass, the smaller the force exerted.

a water balloon is thrown a target at 18 m/s. if the water balloon has a mass of 0.4 kg, what is the momentum?

Answers

The momentum of the water balloon at the given speed is 7.2 kgm/s.

The given parameters:

Speed of the water balloon, v = 18 m/sMass of the balloon, m = 0.4 kg

The momentum of the water balloon is calculated as follows;

P = mv

Substitute the given values of mass and velocity as follows;

P = 0.4 x 18

P = 7.2 kg m/s.

Thus, the momentum of the water balloon at the given speed is 7.2 kgm/s.

Learn more about momentum here: https://brainly.com/question/7538238

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