A lot of points
describe, in terms of subatomic particles, what occurs when a person experiences a static "shock"
Answers
The static shock is caused by the transfer of electrons between surfaces, creating an electric charge buildup that ionizes air molecules, resulting in a spark. Electrons and ions are the subatomic particles involved.
When a person experiences a static shock, it is due to the buildup of excess electric charge on the surface of their body. This excess charge is caused by the transfer of electrons between two surfaces that come into contact and then separate. The transfer of electrons causes an imbalance of charges, resulting in a buildup of static electricity.
The electric charge buildup creates an electric field that can be strong enough to ionize air molecules. This ionization creates a plasma, which is a gas made up of ionized particles. The plasma channels the electric charge from the person's body to the surrounding air, creating a spark that we see as a static shock.
The subatomic particles involved in this process are electrons and ions. Electrons are negatively charged subatomic particles that are transferred between surfaces to create a buildup of static electricity. Ions are atoms or molecules that have gained or lost electrons, resulting in a positive or negative charge.
In summary, a static shock occurs due to the transfer of electrons between surfaces, creating an imbalance of electric charge on the person's body.
This electric charge buildup ionizes air molecules, creating a plasma that channels the electric charge to the surrounding air, resulting in a spark that we see as a static shock. The subatomic particles involved in this process are electrons and ions.
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Related Questions
An object of mass 75 Kg is taken to moon, what will be its weight?(freefall acceleration on moon =1.6 m/s2)
Answers
Answer:
120 Newtons
Explanation:
Weight of an object is given by the relation
W = mg
where
W = weight
m = mass of the object
g = gravitational force or freefall acceleration
Given the numbers:
m = 75 kg
g = 1.6 m/s²
W = 75 x 16 = 120 kg m/s² or 120 Newtons
. If the kinetic energy is given in units of
g.cm/swhat units must the slope have?
A. g.cm/s
B. 8 cm/s?
C. s.cm/g
D. s? /(g.cm)
Answers
A 5 kg object has velocity of v(t) = 4t²+t. What is the force that acts on it at 2s?
Answers
Answer:
Explanation:
acceleration is rate of change of velocity
a=dv/dt =d/dt(4t^2+t) = 8t+1
Acceleration t=2 sec, =8(2)+1=17 m/s^2
Force = mass * acceleration = 5*17 = 85N
In flight, a rocket is subjected to four forces; weight, thrust, lift, and drag. Forces are vector quantities that have both a magnitude
and a direction. Imagine that the rocket is about to lift off the launch pad. According to Newton's third law of motion, what force is
critical to the success of its upward motion?
A)
drag
B)
Lift
c)
thrust
D)
weight
Answers
Answer:
thrust
Explanation:
Answer:
thrust
Explanation:
Problem #1- In the first scene in which Miss Clark appears, she is supposed to be wearing a BLACK dress.
The only available dress that will fit the student playing this role is RED. There is no money in the budget to
purchase another dress. What can be done to the lighting on the stage to make the RED dress APPEAR
BLACK?
Answers
Answer:
Blue Lighting
Explanation:
In order to make red look black, you must use blue light. The blue would be absorbed and there would be no red light to reflect.
Answer:
You would have to shine green Light on the actress to make the dress appear to be red.
Explanation:
The reason it would appear to be red is because green reflects the red colour and absorbs the rest. So, when green light is shone on the dress, it absorbs all of the green light and not reflecting anything.The dress then appears to beblack.
You are gardening in the peak of summer, it hasn't rained in a week, and your plants are looking rough. You decide to water the plants for an hour. The next day you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. With what you know from class, please try and explain what is happening to your plants.
Answers
In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.
However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.
It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.
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Two students are working together to build a birdhouse. Student 1 applies a force of 10 N to a wooden board in order to slide it across the table to Student 2.
Answers
Answer:
6n
Explanation:
Given:
Force acting by student 1 = 10 N
Force acting by student 2 = 4 N
Find:
Net force acting on the board
Computation:
Net force acting on the board = Force acting by student 1 - Force acting by student 2
Net force acting on the board = 10 N - 2 N
Net force acting on the board = 6 N
Our sensation of wet is created by the combination of cold and pressure. True False QUESTION 49 Optical illusions are often the result of ouf perceptual system being tricked by cues that usually help us in the real world. True False QUESTION 50 If when you are woken up you deny that you were ever asleep. you were likely in deep sleep (stage 3 or 4 True False
Answers
Our sensation of wet is created by the combination of cold and pressure. False.
Wetness is a matter of surface texture. It is the ability of the surface of a material to take up water (or other liquids) and for that liquid to remain on the surface. The sensation of wetness is an experience created by the brain after it receives information from the nerve endings in our skin that are sensitive to both pressure and temperature.Optical illusions are often the result of our perceptual system being tricked by cues that usually help us in the real world.
True. Perceptual illusions are the brain's way of interpreting information from the environment. It occurs when the perceptual system is tricked by cues that usually help us in the real world. They result from a complex interplay between the brain, the eyes, and the surrounding environment.If when you are woken up you deny that you were ever asleep, you were likely in deep sleep (stage 3 or 4).
False. If you are awakened from deep sleep, you will probably feel disoriented and groggy, but it is unlikely that you will deny that you were asleep. This is more likely to happen in a state of confusion or partial arousal, which can happen during any stage of sleep.
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True or False: If a wave's wavelength is short, its frequency is high.
A. True
B. False
Answers
Class 11th physics the charge of positive 7 microcoulomb is placed at the centre of two concentric sphere with radius 2cm and 4cm respectively what will be the ratio of flux through them
Answers
Given:
If the charge of +7 mC is placed at the centre of two concentric spheres with the radius 2.0cm and 4.0cm respectivelyNeed to find :
Ratio of the flux through them will be ?
Calculation:
Gauss law :- ø = q/Eₒ
1. For small sphere:- ø1 = q/Eₒ
2. For large sphere :- ø2 = q/Eₒ
=> ø1/ø2 = (q/Eₒ)/(q/Eₒ)
=> ø1/ø2 = 1/1
Ratio of flux is 1:1
a bicyclist rides with a constant velocity of 10 m/s (see figure). consider the motion of a piece of gum stuck to her tire (radius 0.28 m). what is the magnitude of its angular velocity vector?
Answers
The magnitude of the angular velocity vector of the gum stuck to the tire of the bicyclist is approximately 35.71 rad/s.
The angular velocity of an object is defined as the rate at which it rotates or moves in a circular path. It is given by the formula: angular velocity = linear velocity / radius. In this case, the bicyclist is moving with a constant velocity of 10 m/s, and the gum is stuck to the tire with a radius of 0.28 m. Therefore, the angular velocity can be calculated as 10 m/s divided by 0.28 m, which equals approximately 35.71 rad/s. This means that the gum stuck to the tire rotates at a rate of 35.71 revolutions per second, or completes one full revolution approximately every 0.088 seconds. The magnitude of the angular velocity vector represents the speed at which the gum is rotating around the center of the tire, regardless of the linear velocity of the bicycle.
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Pure water suspended in the atmosphere will freeze at a temperature of:
-40°C
-10°C
0°C
32°F
Answers
Pure water suspended in the atmosphere will freeze at a temperature of 0°C and 32°F. The options 0°C and 32°F are correct.
Pure water when suspended in the atmosphere would freeze at a temperature of 0 C or 32 degrees Fahrenheit under normal atmospheric pressure at sea level. But in some conditions the temperature at which water freezes can vary, this depends upon the atmospheric pressure and the presence of impurities in the water as the water droplets in clouds can remain liquid even at temperatures below freezing if there are impurities present that prevent the water from freezing.
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2 When a cube of hot metal is placed in a beaker of cold water, the temperature of the water -
A) decreases
B) increases
C) remains the same
D) none of the above
Answers
Why should the trolley track be sloped at a certain angle
Answers
It is easy to roll a trolley when it is sloped at a certain angle as its speed is greater on an inclined track. This is the reason trolley track be sloped at a certain angle.
The objects roll faster on a steeper inclined track than a less steeper incline.
The forces acting on the trolley on incline are normal force and weight.
Resolving weight of the trolley, we have, m g sinθ acting down the incline.
sinθ is an increasing function and increases on increasing the angle.
The angle keeps changing depending on how the trolley is interacting with gravity.
Thus, the trolley track should be sloped at a certain angle to pull the trolley easily.
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Balance the following chemical equation:
H3PO4 + HCl → PC15 + H20
Answers
Answer:
H3PO4 + 5HCl → PCl5 + 4H2O
Explanation:
When observed from Earth, some stars appear red. What is the cause of redshift?
A.The star is at rest relative to Earth.
B. The star is in a very distant location and is moving away from Earth.
C. The star is moving toward Earth at decreasing speed.
D. The star is moving toward Earth at increasing speed.
Answers
Answer:
B
Explanation:
This is the discovery of redshift that led scientist to say the universeis still expanding
express each of the following in ms -1
a) 18kmh-1
Answers
1km/hr=1000/3600= 5/18m/sec
To convert km/hr into m/sec, multiply the number by 5 and then divide it by 18.
18kmh-1= 18•5=90
90/18=5
5ms-1
A tennis ball is launched at an angle of 30° at a velocity of 40 m/s. What is the vertical component of the velocity right before the ball hits the ground?
Answers
Answer:
20m/s
Explanation:
Given
Velocity = 40m/s
angle = 30°
Vertical component = Vsin theta
Substitute into the formula
Vy = 40sin30
Vy = 40(0.5)
Vy = 20m/s
Hence the vertical component of the velocity right before the ball hits the ground is 20m/s
Convert 0.4 cm to km.
Answers
When a metal at a higher temperature is transferred to water at a lower temperature, heat is inevitably lost to the calorimeter. Will this unmeasured heat loss increase or decrease the calculated value of the specific heat of the metal?
specific heat of metal = - (specific heat of water x mass of water x temperature change of water) / (mass of metal x temperature change of metal)
Answers
When a metal at a higher temperature is transferred to water at a lower temperature, heat is inevitably lost to the calorimeter. This unmeasured heat loss will result in a decrease in the calculated value of the specific heat of the metal.
The specific heat of a substance is defined as the amount of heat energy required to raise the temperature of a unit mass of the substance by one degree Celsius or one Kelvin. To determine the specific heat of a metal, we typically perform an experiment where the metal is heated and then transferred to a calorimeter containing a known mass of water at a lower temperature. By measuring the temperature change of the water and applying the principle of energy conservation, we can calculate the specific heat of the metal.
However, in practice, it is difficult to completely isolate the system from its surroundings. In the case of transferring a hot metal to water, there will be heat loss to the calorimeter and the surrounding environment. This unmeasured heat loss reduces the total heat energy transferred to the water and therefore leads to a lower temperature change in the water. As a result, the calculated value of the specific heat of the metal will be lower than the actual value.
The extent of the unmeasured heat loss depends on various factors such as the insulation of the calorimeter, the efficiency of heat transfer between the metal and water, and the duration of the experiment. To minimize this heat loss, researchers often use well-insulated calorimeters and perform experiments as quickly as possible. Nevertheless, it is challenging to completely eliminate all sources of heat loss.
In conclusion, the unmeasured heat loss to the calorimeter and surroundings will decrease the calculated value of the specific heat of the metal in the experiment. It is important to be aware of this limitation and consider it when interpreting the results of such experiments.
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What is the mass and density of 237 mL of water
Answers
Answer:
V(water)= 237 mL=237×10^-6 m^3ρ(water)=1000 kg/m^3m=ρ×V=(1000)×(237×10^-6)m= 237×10^-3 = 0.237 kgm= 237 gram.Enter an expression for the mass of ice, in kilograms, that has melted when the mixture reaches its final temperature.
Answers
The expression for the mass of ice, in kilograms, that has melted when the mixture reaches its final temperature can be determined using the specific heat formula and the principle of conservation of energy.
When ice melts, it absorbs energy from its surroundings in the form of heat. The amount of heat required to melt a certain mass of ice can be calculated using the formula: \(Q = m * L\) , where Q is the heat energy, m is the mass of ice, and L is the latent heat of fusion for ice.
The principle of conservation of energy states that the heat gained by the ice is equal to the heat lost by the surroundings. So, the heat gained by the ice can be set equal to the heat lost by the surroundings, which can be expressed as: \(Q = m * c * ΔT\) where c is the specific heat capacity of the mixture and ΔT is the change in temperature.
By equating these two equations, we can solve for the mass of ice (m), giving us the expression: \(m = (c * ΔT) / L.\)
Therefore, the expression for the mass of ice, in kilograms, that has melted when the mixture reaches its final temperature is given by: \(m = (c * ΔT) / L\), where c is the specific heat capacity of the mixture, ΔT is the change in temperature, and L is the latent heat of fusion for ice.
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In the mass spectrum of pentane, the presence of a peak with an m/z = 43 most likely is due to the loss of what radical from the molecule?
Answers
The presence of a peak with an m/z = 43 in the mass spectrum of pentane is due to the loss of a methyl radical (CH3) from the molecule
The mass spectrum is a plot of the ion current as a function of m/z, and it is one of the most widely used analytical techniques in organic chemistry. The mass spectrum of pentane shows a peak with an m/z = 43, which most likely results from the loss of a methyl radical (CH3) from the molecule. This radical loss occurs due to the cleavage of the C-C bond between two adjacent carbon atoms in the pentane molecule.The peak at m/z = 43 is commonly known as the M-15 peak because it is due to the loss of a single carbon atom from the parent ion. The loss of the CH3 radical creates a new ion that has a mass of 43 units less than the parent ion. This ion has a characteristic fragmentation pattern that can be used to identify the original compound.
In conclusion, the presence of a peak with an m/z = 43 in the mass spectrum of pentane is due to the loss of a methyl radical (CH3) from the molecule.
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What is the velocity of a wave that travels 1,061.0m in 13.0s?
Your Answer:
Answers
Answer:
81.6 m/s
Explanation:
The formula for calculating the velocity of a wave is:
velocity = distance/time
Substituting the given values, we get:
velocity = 1,061.0 m / 13.0 s
Simplifying this expression, we get:
velocity = 81.6 m/s
Therefore, the velocity of the wave is 81.6 m/s.
An unmanned satellite orbits the earth with a perigee radius of 10,000 km and an apogee radius of 100,000 km. at how many locations in the orbit is the altitude 10,000 km?
Answers
At one location in the orbit, the altitude is 10,000 km.
What do apogee and perigee mean?Its perigee is the monthly location where it comes closest to Earth (this varies throughout the year).
The Moon’s apogee is the location where it is each month when it is the furthest away from Earth (this varies throughout the year as well).
What is the Earth’s apogee?The location on an object’s orbit around the earth that is furthest from the planet’s core, such as a satellite.
The distance at which an object orbiting a planet or satellite (like the moon) reaches that point.
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What was the most interesting discovery you made during this module and why?
Answers
The discovery of a new concept or theory that revolutionized the way one thinks about a subject, leading to a new understanding of the topic.
Learning about a new technology or methodology that can improve efficiency, productivity, and accuracy in a given field of study.
The realization that a previously held belief or assumption was incorrect, and that one needs to rethink their approach to the subject area.
Discovering a new research study that challenges the established theories or introduces new methods of conducting research.
The discovery of new tools, techniques, and resources that can enhance one's learning experience and improve their ability to apply what they have learned in real-world situations.
In conclusion, the most interesting discovery made during a module is subjective and depends on the individual's interest and experiences.
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Problem 3: A mother pushes her child on a swing so that his speed is 9.7 m/s at the lowest point of his path. The swing is attached to a point 1.95 m above the child's center of mass when the swing is motionless 50% Part (a) what is the centripetal acceleration of the child at the low point in m/s2?
Answers
The centripetal acceleration of the child at the low point of the swing is approximately 48.26 m/s^2.
To find the centripetal acceleration of the child at the low point of the swing, we can use the formula for centripetal acceleration:
Centripetal acceleration (ac) = (v^2) / r
Where:
ac is the centripetal acceleration
v is the velocity of the child
r is the radius of the swing's circular path
In this case, the child's speed at the lowest point of the swing is given as 9.7 m/s. However, the given information does not directly provide the radius of the circular path.
To determine the radius, we can consider the fact that the swing is attached to a point 1.95 m above the child's centre of mass when the swing is motionless. This can be used as the radius of the swing's circular path when the child is at the lowest point.
Therefore, the radius (r) is 1.95 m.
Now we can calculate the centripetal acceleration:
ac = (v^2) / r
ac = (9.7 m/s)^2 / 1.95 m
ac = 94.09 m^2/s^2 / 1.95 m
ac ≈ 48.26 m/s^2
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A cube measures 3cm on each side has a mass of 25 grams. what it its density and relative density.
Answers
Answer:
Density= 2.78 g/cm³
Relative density=2.8
Explanation:
To calculate the density of the cube we have to use the formula ρ=mass/volume
ρ stands for density.
So now we don't have the volume of the cube and to find the volume of the cube we have to use the formula a³
3³= 9 cm³
Now plug in the values. ρ= 25 g/9 cm³
ρ= 2.78 g/cm³
To find the relative density, we have to use the formula ρsample/ρH20
The sample means the density of the substance earlier. We do not know the density of water but it is constant at 997 kg/m³.
Now we have to make the units same so you change the unit of the density of cube to kg/m³
So, 25/1000= 0.025 kg
9/100×100×100 (because cm³ which means that there should be 3 meters to change the unit and to conver cm to meter we need to divide by 100 so 9cm/100, 9cm²/100×100, 9cm³/100×100×100)
=0.000009 m³
The new density= 0.025 kg/ 0.000009 m³
= 2777.78 kg/m³
Now plug the values into the formula:
relative density= 2.777.78 kg/m³ / 997 kg/m³
=2.8
There is no unit since kg/m³ and kg/m³ cancels
URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
Answers
Answer:
C would be the answer
Explanation:
Hope this helps! :)
Answer:
A:
Explanation:
The higher the frequency waves of oscillations higher the pitch
.Objects that are not actively moving but have the capacity to do so are said to possess:
a. kinetic energy.
b. entropy potential energy.
c. living energy.
Answers
Objects that are not actively moving but have the capacity to do so are said to possess potential energy.
Potential energy is the energy stored within an object due to its position or state. It has the capacity to be converted into kinetic energy when the object starts moving.
Entropy does not directly linked to an object's mobility; rather, it measures the disorder or unpredictability in a system. Potential energy is the energy that is held in reserve in a system or object based on its configuration or position. It is frequently linked to elastic or gravitational potential energy, rather than explicitly with an object's ability to move.
The concept of "living energy" is not one that is accepted by science. Energy is a fundamental aspect of the physical universe that is unrelated to living things by nature. Although energy is used and transformed by living things for their biological activities, the term "living energy" has no clear scientific definition.
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