The force that causes the protons in an atom to be attracted to one another is Strong nuclear.
What is nuclear force?Nuclear force is a force that acts between the protons and neutrons of atoms.
Neutrons and protons, both nucleons, are affected by the nuclear force almost identically and it is responsible for the attraction of protons in an atoms.
Thus, the force that causes the protons in an atom to be attracted to one another is Strong nuclear.
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Mr. Ramirez demonstrates that objects can exert forces on each other even when the objects
are not touching. He removes two long pleces of clear plastic tape from a tape dispenser. He
holds a piece of tape in each hand so that they are hanging down. As he moves his hands closer together, the pieces of tape repel each other. His students then plan an investigation to study the forces exerted by the pieces of tape. a. Identify two factors that may affect the forces exerted by the pieces of tape. Explain your
reasoning.
b. Describe how the effect of one of the factors you identified in part (a) could be tested. Be sure to include a description of how the effect would be measured and how the collected data would be analyzed.
The two factors that may affect the forces exerted by the pieces of tape are the charge on the tape and distance between them.
The effect of one of the factors could be tested by altering the distance and calculating the forces between them.
What is force?A force is the push or pull which make a body to move or stop it.
a. When two objects are kept apart. they are always attracted when uncharged kept at any distance.
When the objects are charged, the force will be attractive or repulsive.
The distance between those charged objects increase or decrease in strength depending on the distance between them.
Thus, the two factors that may affect the forces exerted by the pieces of tape are the magnitude of charge on the tape and distance between them.
b. By increasing the distance between the tapes, we can find the strength of forces.
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Unguarded live parts operating at 30,000 volts located above a working space must be elevated at least _____ above the working space.
Unguarded live parts operating at 30,000 volts located above a working space must be elevated at least 9.5' above the working space.
What is voltage?The voltage is the potential difference between the end of the conductor.
The place where electricity supply wires and power stations are present, the lives must protected. They must live far above the working space.
Thus, it must be 9.5' above the working space.
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A year is the time it takes a planet to complete one orbit. use your data to estimate the year length for each planet. use time units of earth years or earth months. why does it take the outer planets so long to orbit the sun? try to come up with 2 reasons.
The planets of the solar system has the orbiting time.
Mercury- 88 days, Venus-225 days, Earth- 365 days, Mars-687 days, Jupiter- 12 years, Saturn- 29 years, Uranus- 84 years, Neptune- 165 years, Pluto- 248 years.
What is solar system?Solar system consists of all the planets and the most importantly the center of the solar system is Sun.
Sun is the main focus of the solar system. It emits high temperature light rays on the planets which in turn emit lights and be visible.
Outer planets take longer to orbit the sun because the gravitational pull is weaker as shown in the inverse square law.
The outer planets very far away from the Sun, means that they have more distance to cover in their orbit.
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A plane left 30 minutes late than its scheduled time and in order to reach the destination 1500 km away in time, it had to increase its speed by 100 km/h from the usual speed. Find its usual speed.
Answer:
Usual speed: [tex]500\; {\rm km \cdot h^{-1}}[/tex].
Explanation:
Let the usual duration of the trip be [tex]t[/tex] hours ([tex]t > 0[/tex].) The actual duration of this trip would be [tex](t - (1/2))[/tex] hours.
The usual speed would be:
[tex]\begin{aligned}\frac{1500}{t}\end{aligned}[/tex].
The actual speed would be:
[tex]\begin{aligned}\frac{1500}{t - (1/2)}\end{aligned}[/tex].
The actual speed is [tex]100\; {\rm km \cdot h^{-1}}[/tex] greater than the usual speed. In other words:
[tex]\begin{aligned}\frac{1500}{t - (1/2)} - \frac{1500}{t} = 100\end{aligned}[/tex].
Simplify this equation and solve for [tex]t[/tex] ([tex]t > 0[/tex]):
[tex]\begin{aligned}\frac{15}{t - (1/2)} - \frac{15}{t} = 1\end{aligned}[/tex].
[tex]\begin{aligned}15\, t - 15\, \left(t - \frac{1}{2}\right) = t^{2} - \frac{1}{2}\, t\end{aligned}[/tex].
[tex]\begin{aligned}t^{2} - \frac{1}{2}\, t - \frac{15}{2} = 0\end{aligned}[/tex].
[tex]2\, t^{2} - t - 15 = 0[/tex].
[tex](2\, t + 5)\, (t - 3) = 0[/tex].
Since [tex]t > 0[/tex], the only possible value for [tex]t[/tex] would be [tex]t = 3[/tex].
Thus, the usual duration of this trip would be [tex]3\; {\rm h}[/tex]. The usual speed of this trip would be:
[tex]\begin{aligned}v &= \frac{s}{t} = \frac{1500\; {\rm km}}{3\; {\rm h}} = 500\; {\rm km \cdot h^{-1}}\end{aligned}[/tex].
The shortest distance between the initial position and the final position of moving body is called .............
The Answer Is Displacement
Compare the mass on neptune (68.11) to the weight on neptune (905.863). what is the difference? why is there a difference?
Types of Forces Lab Report
Instructions: In the Types of Forces lab, you will experiment with the contact force friction. Use the following lab report to record your hypothesis, materials, procedures, observations, and conclusion. You will submit your completed report.
Name and Title
Name of Lab:
Student Name:
Instructor:
Date:
Objective
The purpose is to test whether the surface texture of the ground affects the distance an object can roll.
Hypothesis
If an object rolls over _______________ (type of material), then it will _____________ (describe the prediction of distance it will travel).
Materials
For this lab, I used the following items:
Procedure
Short summary of what I did:
I experienced the following errors while doing my experiment:
Test (independent) variable (What was different about my test groups?):
Outcome (dependent) variable (What was I measuring?):
Data
Record the distance traveled for each of the trials for the three floor surfaces in the table below.
Distance Object Traveled
Floor Surface Trial 1 Trial 2 Trial 3
Data Analysis
Calculate the average distance traveled for each floor surface. Use the following guidelines for calculating averages, and show your work.
Floor Covering Calculation of the Average Average Distance Traveled
Example (trial 1 measurement + trial 2 measurement + trial 3 measurement) / 3 (number of trials) Your answer from the calculation, showing the average distance the ball rolled for that floor covering.
Frictional force is reduced in smooth surfaces but is large in rough surfaces.
What is Force?Force is defined as an agent which causes a change in the motion or state of an object.
Forces are of two types:
Contact forces and Non-contact forcesContact forces include frictional force.
Frictional forces refers to the force which acts between two surfaces in contact by opposing the relative motion of one over the other
Frictional force depends on the nature of surfaces in contact where rough surfaces produce greater frictional force than smooth surfaces.
Therefore, frictional force is reduced in smooth surfaces but is large in rough surfaces.
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What is the de Broglie wavelength of a 2.89 x 10-28 kg particle moving
at 3.00 x 108 m/s? (h = 6.626 x 10-34 J-s)
Explanation:
formula is given by
h/mv
where h is 6.626 × 10 ^-34
and c = 3 × 10^8
m = mass
by plugging in the values in the formula, the de Brogile wavelength is equal to 7.6424 × 10^(-15)
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A car is travelled at 8m/s. The mass of the car is 750 kg.
Calculate the force required to stop the car in 8s
Answer:
F = 750N
Explanation:
We know that F(force) = mass(m) × acceleration(a)
And that Acceleration(a) = velocity(V) ÷ time(t)
So we'll first calculate the acceleration
a = V = 8m/s = 1m/s²
t 8
Next we'll calculate the force
F = ma = 750kg × 1m/s² = 750N
What type of waves do not require a medium to travel?.
Answer:
electromagnetic waves
Water can rise from the roots to the tops of trees due to _____.
A. capillary action
B. solubility
C. surface tension
D. homonuclear bonding
E. All of the above
Water can rise from the roots to the tops of trees due to capillary action. The correct option is A.
What is capillary action?It is the phenomenon by which the liquid rises or falls in a very small diameter tube.
In plants. its roots have very thin diameter tubes which are not visible to the eye. But the water reached to the plants through these tube to every single part of the plant i.e. from root to the fruits.
So, water can rise from the roots to the tops of trees due to capillary action.
Thus, the correct option is A.
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According to Einstein's equation, if 3 kg of mass "disappears" during a
reaction, then
A. 5.4 x 1018. J of energy is produced.
OB. the law of conservation of momentum is also violated.
OC. 9 x 108 J of energy is produced.
D. 2.7 x 1017 J of energy is produced.
HELP NOW
The 2.7 x 10^17 J of energy is produced when 3.0 kg mass disappears.
What is the energy produced when 3 kg of mass is converted to energy?According to Einstein's equation, the energy produced when mass is converted to energy is proportional to the mass of the substance.
The Einstein equation is given as:
[tex]E = mc^{2}[/tex]
Mass = 3 kg
c = 3.0 × 10^8
[tex]E = 3 × (3.0 × 10^{8})^{2} = 2.7 \times 10^{17}[/tex]
Therefore, 2.7 x 10^17 J of energy is produced when 3.0 kg mass disappears.
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Active energy is a characteristic of _______ energy.
Answer:
Active energy is a characteristic of Kinetic energy
50 points physics question (multiple choice) Will give brainliest!
There are two systems that contain only the fundamental frequency and they are the systems C and D.
What is fundamental frequency?The term fundamental frequency refers to the lowest frequency of a vibrating body. It does not include the overtones or the harmonics.
From the image shown in the question, there are two systems that contain only the fundamental frequency and they are the systems C and D.
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The products of nuclear fission have slightly less mass than the original atom that undergoes fission. During the process, a very large amount of energy is produced. What do you think happens to the "missing" mass in a fission reaction?
Answer:
missing mass has been converted to energy according to Einstein mass energy equation
Air masses that form over continents in ource regions that are cold are called __
Answers:
Continental polar Cp
Maritime Polar Mp
Continental tropical ct
Maritime tropical mp
Answer:
Continental polar Cp
Explanation:
In classical physics, relative motion is absolute. For example, consider an object moving in a straight line with speed v0 on a platform. If the platform is moving with speed vp in the same direction relative to the ground, the object will be moving with speed v0 + vp relative to the ground. However, it is known that the speed of light is the same for all observers regardless of reference frame, which contradicts the classical model of relative motion. Which of the following statements is a conclusion that could be drawn from this contradiction?А. There are no absoluta celerence frames.B. All physical quantities are the same in al reference frames.C. Light can be described by a wave model and a particle model.D. Observers in different reference frames will measure time and distance differently.
Answer:
d) observers in different reference frames will measure time and distance differently
Transverse waves travel at in a string that is subjected to a tension of if the string is long, what is its mass?
The mass of the string is 0.515 kg.
Calculations and Parameters:Given that:
Tension= 60.5NLength of string= 15.9mv= 43.2 m/sm=?To solve for the mass of the string,
v=√(T/ρ) ,(v=43.2m/s , T=60.5N , L=15.9m )43.2= √(60.5/ρ)60.5/ρ= 1866.24ρ= 0.032418Therefore, the mass would be[tex]15.9*0.03242= 0.515448= 0.515[kg][/tex]
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how does this experiment help us understand their behavior? stanford prison experiment
This experiment help us understand their behavior as well as how the people will cop up with the rules and regulation the society wants to apply on them
What is Stanford prison experiment ?In a two-week simulation of a prison setting, the Stanford prison experiment was meant to look at the impact of situational factors on participants' responses and behaviors.
Hence, this experiment allows us to better understand their behavior, as well as how individuals will respond to the laws and regulations imposed by society.
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A metal artifact with a mass of 814.0 lbs and a length of 6.25 ft is recovered from the Queen Anne's Revenge wreckage site. It is believed to be a cannon. Unfortunately, the base of the cannon was not recovered, so it is a perfectly symmetrical metal tube. The outer circumference is 23.9 inches and the inner diameter of the bore is 11.5 cm. In order to care for it properly, it must be determined what type of metal it is composed of. What is the artifacts density in g/cm3
Answer:
discovered as obisdan
Explanation:
me ginus brooo
The coefficient of dynamic friction between the grass and a 200 kg football blocking sled is 0.20. If a football player only pushes horizontally against the sled, how large must the horizontal force be to keep the sled moving at constant velocity
The horizontal force be to keep the sled moving at constant velocity is 392 N.
Horizontal force applied to the sled
The horizontal force applied to the sled to prevent it from moving is calculated from Newton's second law of motion.
F - Ff = ma
where;
a is acceleration of the sledat constant velocity, a = 0
F - μmg = m(0)
F - μmg = 0
F = μmg
F = 0.2 x 200 x 9.8
F = 392 N
Thus, the horizontal force be to keep the sled moving at constant velocity is 392 N.
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Question 1
A bus travels 5 km east. Then it travels 3 km west by the same path and stops.
What is the bus's displacement?
O 10 km
O2 km
O3km
O 8 km
Which of the following is NOT true in terms of what to consider when judging eye witness accounts?
the type of crime and how the witness saw the incident
interviewing techniques can affect eye witness accounts
open-ended questions do not often get better answers
The statement that is not true about in
terms of what to consider when judging eye witness accounts is the type of crime and how the witness saw the incident.
What is Judgement?Judgement is a decree, or decision or conclusion on a subject matter when there is an offence or someone did wat is wrong . It can be to vindicate and to punish for a crime.
Therefore, The statement that is not true about in terms of what to consider when judging eye witness accounts is the type of crime and how the witness saw the incident
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A car travels for 2 hours at a speed of 55 km/h. calculate the distance traveled
This is a uniform rectilinear motion (MRU) exercise.
We get the data:
d = ?, v = 55 km/h, t = 2 hr
To calculate the distance, multiply the speed by the time.
d = v * t
d = 55km/h * 2hr = 110kmThe distance traveled is 110 km.
An object moves 4 meters north, then 3 meters east. What is the displacement of the object?
Answer:
5 meters
Explanation:
4 and 3 are legs of a right triangle with the hypotenuse = displacement
Use Pythagorean theorem
4 ^2 + 3^2 = (displacement)^2
displacement = 5 m
The displacement of the object that moved 4 meters north, then 3 meters east is 5 meters.
What is displacement?
Displacement is change in the position of an object. It can be described as the shortest distance between the initial and final position of an object.
The displacement of the object is calculated as follows;
d² = 4² + 3²
d² = 25
d = 5 m
Thus, the displacement of the object that moved 4 meters north, then 3 meters east is 5 meters.
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What happens when a sound wave passes by the particles of a medium?
Answer:
Propagation of Sound Waves:
Sound waves move (propagate) through a medium by means of particle-to-particle interaction. The source disturbs the immediately surrounding particles, causing them to vibrate about their fixed position at the same frequency as the source.
What happens when oxygen comes in contact with NOx and VOCs?
1. They combine to create ozone to replenish the ozone layer.
2. Oxygen neutralizes NOx and VOCs.
3. They combine to form low altitude ozone.
4. They combine to form smog.
When oxygen comes in contact with NOx and VOCs They combine to create ozone to replenish the ozone layer. Option A is correct.
What is an ozone layer?The layer form on the stratosphere region of the earth, which absorbs most of the ultraviolet rays.
The ultraviolet rays come from the sun are very harmful, increases global warming when enter inside the ozone layer due to its deplection.
When oxygen comes in contact with NOx and VOCs They combine to create ozone to replenish the ozone layer.
Hence, option A is correct.
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A stone is thrown horizontally at 15 m/s from the top of a cliff. It takes it 2.4 s to hit the ground. How far from the base of the cliff does the stone hit the ground
Ph11_UnitPacket2019
Page 30 of 38
3. A ray of light travels from air into a liquid. The ray is incident upon the liquid at an angle of 30.0 degrees
The angle of refraction is 19.9º.
a. What is the index of refraction for the liquid? 1901
1999
thin liquid could be.
Let's see
Use snells law
[tex]\\ \rm\Rrightarrow \dfrac{n_1}{n_2}=\dfrac{sini}{sinr}[/tex]
[tex]\\ \rm\Rrightarrow \mu=\dfrac{sin30}{sin19.9}[/tex]
[tex]\\ \rm\Rrightarrow \mu=0.5/0.34[/tex]
[tex]\\ \rm\Rrightarrow \mu=1.47[/tex]
It may be glass
A hot air balloon pilot is choosing a day and time to launch her new balloon. Table 1 shows the weather forecast for the next three days.
Temperature at 6 a.m. (°C). Temperature at 12 p.m. (°C). Temperature at 6 p.m. (°C)
Monday. 4. 18. 22
Tuesday. 6. 19. 24
Wednesday. 10. 20. 25
If the pilot wants to rise as high as possible while using as little fuel as possible, on which day should she launch her balloon? Explain your answer.
The balloon will rise the most on Wednesday due to high temperature that will increase the thermal energy of the balloon and cause it to rise higher.
Average daily temperatureThe average daily temperature of the different days is calculated as follows;
Monday = (4 + 18 + 22)/3 = 14.67 ⁰C
Tuesday = (6 + 19 + 24)/3 = 16.3 ⁰C
Wednesday = (10 + 20 + 25)/3 = 18.3 ⁰C
The average daily temperature of Wednesday is the greatest.
The balloon will rise the most on Wednesday due to high temperature that will increase the thermal energy of the balloon and cause it to rise higher.
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