freezing
During freezing, the temperature of a substance remains constant while the particles in the liquid form a crystalline solid. Because particles in a liquid have more energy than particles in a solid, energy is released during freezing. This energy is released into the surroundings.
claims that he sees ghosts everywhere. if we put him in an fmri during one of his experiences and asked him to observe ghosts in the room, what would we see in the fmri scan?
If an individual who claims to see ghosts everywhere is put into an fmri and asked to observe ghosts in the room, the fMRI scan would show activation in specific brain regions that are associated with visual processing and perception.
The fMRI would detect increased activity in the visual cortex, which is responsible for processing visual information.The brain region called the temporal lobes is also involved in visual processing and perception, and activation in this area could be associated with the perception of ghosts. Furthermore, activity in the amygdala, which is involved in processing emotions and fear, may also be detected if the individual is experiencing fear or anxiety related to seeing ghosts.In conclusion, an fMRI scan of an individual who claims to see ghosts everywhere would show increased activation in brain regions associated with visual processing, perception, and emotional processing.
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can you please help me?
Answer:
Iron, You're Welcome :)
Answer:
iron
Explanation:
a body is moving with constant speed over frictionless horizontal surface. What is the work done by the weight?
Answer:
Zero.
Explanation:
Work done by the weight is Zero, since the force and displacement are at right angles to each other.
what is sex ansd asexual.
Answer:
SEx is where two species breed to produce offspring. In biology, asexual does not involve the fusion of gametes. In other terms, asexual means to not reproduce or enjoy partaking in sEx.
Explanation:
These are the reactant in a chemical equation: 6 CO2 + 6 H2O --> C6H12O6 + 6 O2
Answer:
Carbon Dioxide and Water.
Explanation:
This is the chemical formula for photosynthesis!
An astronaut brings a cube from the earth to the moon. What is true about the inertial mass and weight of the cube?
When an astronaut brings a cube from the Earth to the Moon, the inertial mass remains constant, but the weight decreases.
What is the difference between mass and weight?Mass of the body is defined as the amount of matter a body have. It is denoted by m and its unit is kg.
Weight is defined as the amount of force an object expert on the surface. It is given as the product of mass and the gravitational pull.
When an astronaut brings a cube from the Earth to the Moon, the inertial mass remains constant, but the weight decreases.Because the value of the gravitational acceleration is different on the moon.
Hence, option D is correct.
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An astronaut brings a rock back to Earth from the Moon.
What is true about the gravitational mass and weight of the rock?
Answer: CORRECT (SELECTED)
The gravitational mass remains constant but the weight increases.
Explanation:
Weight is directly proportional to the gravitational acceleration, so if g increases, so does the weight.
Hello guys could you please help me with this ASAP??
PLS BE RELEVANT I REALLY NEED THIS :):
QUESTION:
- Why are placebos useful in human studies?
Answer:
So that the researchers know how much of the result is a trick of your mind and how much of the result is real.
Explanation:
So first, in order to answer this question we need to know what a placebo is.
Placebo: any treatment that has no active properties, like a sugar pill.
Now we ask ourselves, how could a placebo be something of interest in human studies?
Our brains are amazing things and can connivence themselves many things. Hints the phrase "placebo effect" that is very common in the medical field.
The placebo effect (a positive effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in that treatment) is a really good example as to why they are useful in human studies.
How else could you know was a true effect or just something someone believed would happen anyway?
Which nucleus completes the following equation?
Answer:
its b
Explanation:
although episodic waves 20 to 30 m high and moving at a speed of 50 knots have been recorded, researchers have calculated possible maximum wave heights of nearly blank m
Researchers have calculated that the possible maximum wave heights of nearly 100 m for episodic waves.
Although episodic waves 20 to 30 m high and moving at a speed of 50 knots have been recorded, researchers have calculated possible maximum wave heights of nearly 100 m (328 feet) for several reasons. According to research, rogue waves are expected to be more common in regions with strong currents, such as Agulhas Current, the Kuroshio Current, and the Gulf Stream. Rogue waves may happen more frequently when surface waves travelling in various directions combine and create a large wave with a small wavelength. These waves can be devastating to ships at sea and can easily cause damage or destruction.
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(FREE FALL) An object falls from an unknown height, crosses last 196m in 4s. Find the falling time and height.
Answer: An object is dropped from a height of 75.0 m above ground level.
Explanation: I hoped that helped !
Earth has a sidereal period of 1 year. Jupiter has a sidereal period of 11. 9 years. What is the synodic period between earth and jupiter. Input your answer as a number only in earth years.
The synodic period between Earth and Jupiter is 1.092 years.
Given:
The sidereal period for Earth is 1 year.
The sidereal period for Jupiter is 11.9 years.
⇒ \(1/P_{syn}\) \(= | 1/P_{s} - 1/P_{sid} |\)
⇒ \(1/P_{syn}\) = | 1/1 – 1/11.9 |
⇒ \(1/P_{syn}\) = 0.916
⇒ \(P_{syn}\) = 1.092 years
Sidereal period: It measures how long it really takes a planet to revolve around the Sun in relation to other stars.
Synodic period: The amount of time needed for a solar system body, such as a planet, the Moon, or an artificial Earth satellite, to return to its original or nearly original position with respect to the Sun as seen from Earth.
We employ three connections in this calculator of synodic periods:
An inferior planet is nearer to the central object (such as the Sun) than the planet from which you are seeing it (usually assumed to be Earth). This is how the connection is:\(1/P_{sid}\) \(= 1/P_{s} + 1/P_{syn}\)
A superior planet is further out from the center of the solar system than the reference planet. The sign is the sole modification to the connection.\(1/P_{sid} = 1/P_{s} - 1/P_{syn}\)
Using the absolute value without considering the location of the planet is another technique to get the sidereal period (or the synodic one):\(1/P_{syn} = | 1/P_{sid} - 1/P_{s} |\)
where,
\(P_{s}\) is the sidereal period of the reference planet, \(P_{syn}\) is the planet's synodic period, and \(P_{sid}\) is its sidereal period. The synodic period is 1 year or 365.25 days if it is (or is intended to be) seen from Earth.To know more about sidereal and synodic period go to https://brainly.com/question/14760543
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Noise cancelling headphones are a kind of headphones which decrease the amount of background noise that get into your ears when you wear them. On what physical phenomena do these headphones depend on?
The theory of destructive interference underlies the operation of noise-cancelling headphones.
The process of using passive and active noise control techniques to reduce undesired background and ambient noises is known as noise cancellation.
Active noise cancelling (ANC) adopts a different strategy from passive noise cancellation by "neutralising" incoming sound waves from your surroundings. Passive noise cancellation reduces ambient noise by erecting a "physical shield" to mask sound.
Small microphones built into ANC headphones send out sound waves that interfere with incoming sound waves from the environment, cancelling each other out. It's comparable to adding +3 and -3, where the result is zero (silence).
Both inside and outside the headphones' walls are picked up by the microphones.
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Vf=V0+at solve for a
Answer:
See below
Explanation:
vf = vo + at subtract vo from both sides
vf - vo = at now divide both sides by t
(vf-vo) / t = a
a heavy crate rests on the bed of a flatbed truck. when the truck accelerates, the crate remains where it is on the truck so it too accelerates. what force(s) is/are responsible for the acceleration of the crate? be specific as to the root causes (on, by) of this force.
The force responsible for the acceleration of the crate is the frictional force between the crate and the bed of the truck.
When the truck accelerates, the crate tends to remain at rest due to inertia. However, the frictional force between the crate and the bed of the truck acts in the forward direction, allowing the crate to accelerate along with the truck.
This frictional force is a result of the interaction between the surfaces of the crate and the truck bed. Without this frictional force, the crate would slide or move independently from the truck's acceleration.
The frictional force arises due to the microscopically rough surfaces of the crate and the truck bed. As the two surfaces are pressed against each other, intermolecular forces come into play, resulting in the generation of the frictional force
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Which of the following would be potential impacts of global climate change on thermohaline circulation in the oceans?
A: slowing the rate of circulation
B: no effect of circulation
C: changing the direction of circulation
D: increasing the rate of circulation
The potential impacts of global climate change on thermohaline circulation in the oceans is increasing the rate of circulation. That is option D.
What is thermohaline circulation?The thermohaline circulation is defined as the process by which deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline).
When there is global climate change increased temperature of water masses would cause these currents to flow faster given the higher kinetic energy of the water molecules.
Therefore, there is increase in rate of circulation when there is global climate change.
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A force of 6.0 N gives a 2.0 kg block an acceleration of 3.0
m/s² to the right.
The force of friction acting on the block is
N.
1. which has a greater resistance, a 60-watt bulb or a 40-watt bulb? 2. how does the calculated power compare with the rated power of each bulb in parts (1) and (2)? 3. how does the effective (combined) resistance of the two bulbs in parallel compare with their individual resistances? 4. how does the combined power output of the two bulbs in parallel compare with their combined rated power? 5. when the two bulbs are connected in series, does each lamp draw full power? can you explain why? 6. when two bulbs are connected in parallel and one of the bulbs is disconnected, what happens to the power output of the other bulb?
1. The resistance of a bulb is not directly related to its wattage.
2. The calculated power is equal to the rated power for each bulb.
3. The effective resistance of two bulbs in parallel is less than their individual resistances.
4. The combined power output of two bulbs in parallel is equal to their combined rated power.
5. When two bulbs are connected in series, each bulb does not draw full power.
6. When one bulb in a parallel circuit is disconnected, the power output of the other bulb remains the same.
1. The resistance of a bulb is not directly related to its wattage. The resistance of a bulb depends on its design and can vary for bulbs with different wattages. Therefore, we cannot determine which bulb has a greater resistance based solely on its wattage.
2. The calculated power is equal to the rated power for each bulb. The rated power of a bulb is the power it is designed to operate at, and it is usually marked on the bulb itself. Therefore, the calculated power and the rated power will be the same for each bulb.
3. The effective resistance of two bulbs in parallel is less than their individual resistances. When bulbs are connected in parallel, the total resistance decreases because the current can flow through multiple paths. The reciprocal of the total resistance is equal to the sum of the reciprocals of the individual resistances.
4. The combined power output of two bulbs in parallel is equal to their combined rated power. In a parallel circuit, each bulb operates independently and contributes its rated power to the total power output of the circuit. Therefore, the combined power output of the bulbs in parallel is equal to the sum of their rated powers.
5. When two bulbs are connected in series, each bulb does not draw full power. The total resistance in a series circuit is equal to the sum of the individual resistances. If the resistance of one bulb is significantly different from the other, it will affect the current flowing through the circuit. The bulb with higher resistance will receive less current and therefore draw less power compared to the bulb with lower resistance.
6. When one bulb in a parallel circuit is disconnected, the power output of the other bulb remains the same. Each bulb in a parallel circuit operates independently, so the disconnection of one bulb does not affect the power output of the other bulb. The disconnected bulb will not receive any current or power, but the functioning bulb will continue to operate normally.
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a weather emergency siren is mounted on a tower, 105 m above the ground. on one hand, it would be a good idea to make the siren very loud so that it will warn as many people as possible. on the other hand, safety regulations prohibit the siren from exceeding an intensity level of 116 db for workers standing on the ground directly below the siren. assuming that the sound is uniformly emitted, what is the maximum power that the siren can put out? maximium power output: 4387.95 tools x10y w how far away from the base of the tower can a person be and still be able to hear the siren? neglect any absorption of sound energy by the air; although, in reality, such absorption would be significant at long distances. maximum audible distance:
The maximum power that the siren can put out is of 4.74 dB.
Given that,
The height of the tower above the ground is, h = 105 m
Sound intensity from the siren is, I = 116 dB
We know that, the maximum intensity of sound allowed is 11.6 B.
Then the intensity of sound in terms of W/m² can be found as follows,
log(I / I₀) = 11.6
I / I₀ = 10¹¹°⁶
I = 10¹¹°⁶ * I₀
⇒ 10¹¹°⁶ * 10⁻¹²
⇒ 10⁻⁰°⁴
At 105 m above the ground the intensity will be 105² times.
Then the intensity at source point = 10⁻⁰°⁴ * 105²
⇒ 0.398 * 105² = 4387.95 W/m²
The energy of sound from the source is given as,
4π* intensity= 4* 3.14* 4387.95 = 55112.65 W/m²
To convert into decibels:
log(55112.65/ 10⁻¹²) = log(55112.65+12) = 4.74 dB
Thus, we can conclude that the maximum power that the siren can put out is of 4.74 dB.
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5. a. Answer the following questions. What is density? Write a formula by showing the relation among density mass and volume.
Answer:
Density is how compact something is. The relationship is M/V=D (Mass divided by Volume equals Density).
Explanation:
WHAT IS DENSITY:
Density is the degree of compactness of a substance.
EXAMPLE:
"a reduction in bone density"
FORMULA OF DENSITY:
The formula for density is d = M/V, where d is density, M is mass, and V is volume.
20 points) How is BMI weight calculated?
Divide weight by 678.
Double weight.
Subtract weight from heart rate.
Multiply weight by 703.
BMI weight is calculated by D. Multiply weight by 703.
How to find BMI ?BMI (Body Mass Index) weight is calculated by dividing a person's weight in kilograms by their height in meters squared.
The formula for calculating BMI is: BMI = weight (kg) / height² (m²).
Therefore, the correct option for how BMI weight is calculated is Multiply weight by 703. This is because the weight is multiplied by 703 to convert it from pounds to kilograms, and the height is converted from feet and inches to meters before being squared and used in the formula.
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how do sponges use water to carry out essential functions
Sponges utilize water for feeding, respiration, excretion, reproduction, and maintaining their shape and structure.
Sponges are filter feeders. They draw in water through numerous tiny pores called ostia and filter out food particles, such as bacteria and organic matter, present in the water. Water flow carries these particles into the sponge's central cavity, called the spongocoel, where they are consumed by specialized cells.
Sponges lack specialized respiratory organs but rely on the diffusion of gases across their thin cell layers. Water circulation facilitates the exchange of dissolved oxygen from the surrounding water with carbon dioxide waste produced by the sponge's cells.
Sponges eliminate metabolic waste products through water currents. Waste substances dissolve in the water within the sponge and are carried away as water exits through a larger opening called the osculum.
Water plays a crucial role in the reproductive processes of sponges. Sponges can reproduce asexually through budding or fragment regeneration.
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cm. the current in the solenoid is increasing at a uniform rate of 36.0 a>s. what is the magnitude of the induced electric field at a point near the center of the solenoid and (a) 0.500 cm from the axis of the solenoid; (b) 1.00 cm from the axis of the solenoid?
The induced emf near the solenoid's center has a magnitude of 0 V/m.
At a location 0.500 cm from the solenoid's axis, the induced electric field has an intensity of 8 x 105 V/m.
the settings provided;
N = 700 turns/m for the solenoid's number of turns, and r = 2.5 cm for the wire's radius. I = 36 A/s for the solenoid's current.The following formula is used to determine the size of the induced emf close to the solenoid's center:
B = 4π × 10⁻⁷ × 700 × 36
= 0.032 T/s
E = r/2(dB/dt)
E = 0/2*(0.032)
E = 0 V/m
The following formula is used to determine the strength of the induced electric field at a position 0.500 cm from the solenoid's axis:
E = r/2(dB/dr)
E = {(0.5 * 10⁻²)/2}*(0.032)
E = 8 × 10⁻⁵ V/m
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When the pressure is 1.00 atm What is the volume of the gas?
The required volume of the gas is 0.52 L.
What is relation between pressure and volume of the gas?Diminishing the volume of a contained gas will expand its tension, and expanding its volume will diminish its strain. As a matter of fact, on the off chance that the volume increments by a specific variable, the tension declines by a similar element, as well as the other way around.
According to question:V1 = 1.56 L, P1 = 1 atm, P2 = 3 atm,
To find: V2 of gas
So, P1V1 = P2V2
V2 = P1V1/P2
V2 = 1.56(1)/3 = 0.52 L
Thus, required volume of gas is 0.52L
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Correct question:
A gas occupies 1.56 l at 1.00 ATM what will be the volume of this gas if the pressure becomes 3.00 ATM
The horse is galloping at 13 m/s. Five seconds later, after climbing the hill, the horse is moving at 5.5m/s. Find the accelerarion that describes this change in velocity.
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Which of the following types of ES is frequently used to support operational procurement activities? A) ERP B) SCM C) SRM D) Two of the above,
Among the following options, Enterprise Resource Planning (ERP) is the type of ES frequently used to support operational procurement activities.
What is ERP?ERP or Enterprise Resource Planning is a software application that an organization uses to manage its business processes. It integrates various departments, such as finance, HR, inventory, and procurement, into a single system and streamlines communication between them. This assists firms in effectively utilizing resources and achieving their objectives.
ERP system is frequently used to support operational procurement activities because it can help in coordinating the purchasing process from start to finish. It also automates many activities such as generating purchase orders, tracking shipments, recording receipts, and paying invoices.
Thus, it can increase the efficiency and accuracy of procurement processes, reducing the need for manual intervention.
Therefore, the correct answer is A) ERP.
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why the cell of an atom is positively charged?
It's bcoz when there is fewer electrons than protons its says positively charged
because the cell would have more protons in it than electron that is wht the atom would be more positively charged.
A hockey puck is initially sliding along the ice at a speed of 122. The kinetic friction coefficient between puck and ice is 0.101 The puck slides a distance of _m before coming to a stop,
A hockey puck is initially sliding along the ice at a speed of 122 m/s. The kinetic friction coefficient between puck and ice is 0.101 The puck slides a distance of 747.66 meters before coming to a stop.
To determine the distance the hockey puck slides before coming to a stop, we need to consider the forces acting on the puck and use the concept of work and energy.
Initial speed of the puck (v₀) = 122 m/s
Kinetic friction coefficient (μ) = 0.101
The work done by friction can be calculated using the formula:
Work = μ * Normal force * distance
Since the puck is sliding along the ice, the normal force is equal to the weight of the puck, which can be calculated using the formula:
Normal force = mass * gravity
The work done by friction is equal to the change in kinetic energy of the puck. At the beginning, the puck has only kinetic energy, and at the end, when it comes to a stop, it has zero kinetic energy. Therefore, the work done by friction is equal to the initial kinetic energy.
Using the formula for kinetic energy:
Kinetic energy = 1/2 * mass * velocity²
Setting the work done by friction equal to the initial kinetic energy:
μ * Normal force * distance = 1/2 * mass * v₀²
Since the mass of the puck cancels out, we can solve for the distance:
distance = (1/2 * v₀²) / (μ * g)
where g is the acceleration due to gravity.
Substituting the given values:
distance = (1/2 * (122 m/s)²) / (0.101 * 9.8 m/s²)
distance = 747.66 meters
Therefore, the hockey puck slides approximately 747.66 meters before coming to a stop.
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The above question is incomplete the complete question is:
A hockey puck is initially sliding along the ice at a speed of 122 m/s. The kinetic friction coefficient between puck and ice is 0.101 The puck slides a distance of _ m before coming to a stop.
Hint: The mass of the puck should cancel out of your equation.
1.
How do the individual forces compare when the rider experiences a normal
sensation of weight? What is the acceleration value when this occurs?
Answer:
The rider experiences weight or does not experience weight depends upon the direction of the elevator in which it moves and its acceleration.
Explanation:
Consider the mass of a rider as m. So its actual weight is mg and it acts vertically downward. The apparent weight of the rider is depended on the acceleration of the elevator and its direction of movement.
When elevator moves with a constant speed i.e. its acceleration is zero, the apparent weight of the rider is equal to the actual weight. Thus the rider's sensation is normal.
If the elevator is moving upward with an acceleration a, then the apparent weight of the rider will be more and the rider will experience an increase in weight or the sensation is heavy.
Or when the elevator moves downward with an acceleration a, the apparent weight of the rider is less. And the rider sensation is lighter.
The acceleration will become "0 (zero)". A further solution to the question is provided below.
Individual pressures neutralize or negate each other out if somehow the riding experiences stable weight, implying that perhaps the rider's cumulative acceleration will be zero,Now,
→ \(mg= W+F\)
or,
→ \(g= a+g\)
then,
→ \(a =0\)
This means that the rider isn't moving. Thus the response above is appropriate.
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12. A child touches the metal leg of a chair. She says "The
cold is moving to my hand!" How would you (gently) correct
the child in physics terms
A child touches the metal leg of a chair. The temperature of metal leg is moving to her hand.
What is temperature?The temperature is the degree of hotness or coldness when an object is touched.
The metals are generally have less temperature compared to the surrounding temperature. When a child touches the leg of a metal chair, she feel cold, but the physical term is temperature which is moved to her hand.
Thus, temperature of metal leg is moving to her hand.
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La distancia por carretera de Chitré a Parita es de 12 km; exprese en pies ésta distanciaLa distancia por carretera de Chitré a Parita es de 12 km; exprese en pies ésta distancia
Answer:
La distancia por carretera de Chitré a Parita es de 12 km o 39370.08 pies.
Explanation:
La regla de tres es una forma de resolver problemas de proporcionalidad entre tres valores conocidos y un valor desconocido, estableciendo una relación de proporcionalidad entre todos ellos.
Si la relación entre las magnitudes es directa, es decir, cuando una magnitud aumenta, también lo hace la otra (o cuando una magnitud disminuye, también lo hace la otra), se debe aplicar la regla directa de tres. Para resolver una regla directa de tres, se debe seguir la siguiente fórmula, siendo a, b y c los valores conocidos y x el valor a determinar:
a ⇒ b
c ⇒ x
Entonces \(x=\frac{c*b}{a}\)
La regla directa de tres es la regla que se aplica en este caso donde hay un cambio de unidades. Para realizar esta conversión de unidades, primero debes saber que 1 km = 3280,84 pies. Entonces, si 1 km son 3280,84 pies, ¿cuántos pies son 12 km?
1 km ⇒ 3280.84 pies
12 km ⇒ x
\(x=\frac{12 km*3280.84 pies}{1 km}\)
x= 39370.08 pies
La distancia por carretera de Chitré a Parita es de 12 km o 39370.08 pies.