calculate the pressure exerted by a mercury column of 76 cm high at its bottom.Given that density of mercury is 13600kg/m^3 and g=9.8​

Answer:

pluto

Explanation:

Dwarf because it is very minut

Answer:

I think Saturn.

Explanation:

I think the inner planets are Mercury, Venus, Earth and Mars whereas the outer ones are Jupiter, Saturn, Uranus and Neptune.

Answer:

Plural cerebrums cerebra The largest part of the vertebrate brain, filling most of the skull and consisting of two cerebral hemispheres divided by a deep groove and joined by the corpus callosum, a transverse band of nerve fibers. The cerebrum processes complex sensory information and controls voluntary muscle activity.

Explanation:

Answer:

HOPEFULLY i am correct but i say its D. Hopefully I helped!✨

Answer: It can be A or B

Explanation: In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstration is Stimulus reinforcement.

Fantastic reinforcement refers to the introduction of a perfect or quality stimulus after a conduct. The acceptable stimulus reinforces the conduct, making it more likely that the conduct will reoccur.

Reinforcement can consist of anything that strengthens or increases a behavior. three In a lecture room setting, for example, varieties of reinforcement would possibly include giving praise, letting college students out of undesirable work, or presenting token rewards, sweet, greater playtime, or a laugh sports.

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A pigeon has learned that pecking a key when a red light is on is sometimes reinforced with access to food. The first time a green light is turned on, the pigeon begins to peck at the key. This illustrates the process of__

a. Stimulus discrimination

b.  Stimulus discrimination

c. Stimulus reinforcement

d. Observational learning

Hence the answer is option c Stimulus reinforcement.

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When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstrates the concept of Stimulus reinforcement.

Stimulus reinforcement is a stimulation that strengthens or weakens the behavior that has produced it.

Reinforcement is an action to encourage something. Stimulus is something that produces a sensory or behavioral response in a species.

A Positive stimulus reinforcement is referring to the introduction of desirable stimulus. It makes the stimulus reinforcement more likely that the behavior will be reoccurring. For example, In a classroom, praises act like a reinforcement. When the red light is on the pigeon does not peck on the disk and picks on green light, demonstrating Stimulus Reinforcement.

Fantastic reinforcement refers to the introduction of a perfect and a quality stimulus after a conduction.

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Answer:

It uses x-rays. The image is produced by polarizing exciting hydrogen nuclei of water molecules in the human tissue which will produce the image.  

Answer:

It uses x-rays. The image is produced by polarizing exciting hydrogen nuclei of water molecules in the human tissue which will produce the image.

haha ctrl + v go brrrrrrrrrrrrrr

Answer:

It's used to indicate pressure

Answer:

girl bye you must love to exercise

:D

Answer:

Damp Proofing:

Explanation:

The presence of damp proofing is very necessary to maintain the health of a structure. DPC plays an important role in all types of buildings and it should be necessary to know about the importance, requirements, and properties of DPC. In many of the buildings all over the world, the rising damp may be due to a damaged damp-proof course, or sometimes, there may be not any damp proof course in a building.

The new frequency also double the centripetal force on an object in circular motion is doubled while the object keeps the same radius of rotation.

The mass of the object is m .

The radius of the circle is r.

The new centripetal force F2 = 2F1 .

A force that causes a body to follow a curved path is known as a centripetal force, which derives from the Latin words centrum, "Centre," and petered, "to pursue." It always moves in a direction that is the opposite of the body's motion and in the direction of the fixed point of the path's immediate Centre of curvature. "A force by which bodies are dragged or driven, or in any other manner tend, towards a point as to a Centre," was how Isaac Newton defined it. The centripetal force that causes astronomical orbits in Newtonian physics is provided by gravity.

The scenario in which a body moves uniformly fast along a circular path is one frequent example of centripetal force. Towards the Centre of the object, the centripetal force is directed along the radius and at an angle to the velocity.

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Bill made the saturated solution

Solubility is the maximum amount of a solute that can dissolve in a given amount of solvent at a specified temperature and pressure. It is often expressed in units of grams of solute per 100 grams of solvent or in moles of solute per liter of solution.

The solubility of a substance depends on several factors, including the nature of the solute and solvent, the temperature and pressure of the system, and the presence of other dissolved substances or impurities. In general, as the temperature of a solution increases, the solubility of solids in the solution also increases, while the solubility of gases decreases.

The solubility of NaCl at 80 degrees is  40 g

The solubility of KNO3 at 80 degrees is 50 g

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The instruments used to accurately measure the positions of the planets are called astronomical or celestial instruments.

Some commonly used instruments for this purpose include:

1. Telescopes: Optical telescopes are used to observe celestial objects, including planets, and measure their positions relative to the background stars.

2. Sextants: Sextants are navigational instruments that were historically used for celestial navigation, including determining the positions of celestial bodies such as planets.

3. Astrolabes: Astrolabes are ancient astronomical instruments used for solving problems related to time and the positions of celestial objects, including planets.

4. Theodolites: Theodolites are precision instruments used for measuring angles in horizontal and vertical planes. They have been used in celestial observations to measure positions and angular distances between planets and other celestial objects.

5. Photographic plates: In the past, photographic plates were used to capture images of the night sky. By comparing the positions of planets on different plates taken at different times, astronomers could determine their motions and positions accurately.

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Answer:

The atoms ,molecules, or compound present at the start of a chemical reaction that parcitipate in the reaction are the reactants.

Explanation:

The chemical reaction is the way in which one substance reacts against another. So, a chemical reaction consists of the transformation of some substances into others, that is, the process of arranging atoms and bonds when chemical substances come into contact.

In a chemical reaction, the initial substances are called reactants, while the new substances obtained are called products.

So, the atoms ,molecules, or compound present at the start of a chemical reaction that parcitipate in the reaction are the reactants.

Answer:

10-0÷2=5 that's the answer

A light-year is the distance that light travels in a year and is approximately equal to 9.46 trillion kilometres or 5.88 trillion miles.

The distance travelled by light in one year (365 days). A light-year is a way to measure distance in space. The distance that light can travel in one year, which is approximately 5.88 trillion miles (9.46 trillion kilometres), is referred to as a light-year. The reason light-years are utilized as a measurement of distance in space is that distances in space are vast, making miles or kilometres inadequate.

The speed of light is approximately 186,000 miles per second (299,792 kilometres per second). When you multiply that by the number of seconds in a year (31,536,000), you get 5.88 trillion miles or 9.46 trillion kilometres. Therefore, the distance travelled by light in one year (365 days) is a light-year.

A leap year, which happens every four years, adds an extra day to the year, making it 366 days long. However, this does not have an impact on the definition of a light-year as a unit of distance, thus choice B is incorrect. C and D are incorrect because a light-year does not measure time but instead measures distance.

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The y-component of the vector if the vector is 14.4 m long and  points in a 133 degree  direction is 9.92m

A vector force is defined as a vector quantity having both magnitude and direction.

If the magnitude of a vector is 14.4m long points in a 133-degree direction, then the y-component of the vector force will be expressed as:

\(v_y = vsin \theta\)

Given the following parameters

\(v = 14.4m\\\theta = 133-90=43^0\)

Substitute the given parameters into the expression

\(v_y=14.4 sin 43^0\\v_y=9.82m\)

Hence the y-component of the vector if the vector is 14.4 m long and  points in a 133 degree  direction is 9.92m

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Answer:

10.5

Explanation:

The equation for the y-component is Asin(theta) so the equation for this problem would be 14.4sin(133) which equals 10.5314933. We round this equation down to 10.5 and that is your answer.

A fully charged HV battery should show voltage levels to within 3% of specifications.

A High Voltage (HV) Battery is an electric vehicle's most crucial component. HV batteries are responsible for propelling electric cars by producing power. As a result, a fully charged HV battery should display voltage levels to within 3% of the specifications to provide maximum performance and lifespan. The voltage levels of the HV battery are monitored by the Battery Management System (BMS) (BMS).The Battery Management System (BMS) (BMS) is the electric vehicle's computerized system that monitors the battery's performance, safeguards it against damage, and informs the driver of any system issues. The BMS uses voltage and current sensors to monitor the battery's state of charge and power output in real-time. The Battery Management System (BMS) calculates the battery's available power and energy and its state of charge based on the monitored data.The Voltage level of a battery shows the strength of the battery. If a battery's voltage level is low, it means that the battery is weak and will not last long. Therefore, a fully charged HV battery should show voltage levels to within 3% of specifications to provide the best performance and lifespan. Any deviation from this range will decrease the battery's overall performance and lifespan.

A fully charged HV battery should show voltage levels to within 3% of the specifications to provide maximum performance and lifespan. The Battery Management System (BMS) monitors the voltage levels of the battery to ensure that it is functioning correctly. If the battery's voltage level is below the specified range, it will impact the battery's overall performance and lifespan.

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The work done in pumping all the liquid out of the tank is 2500π lb-ft.

The potential energy of an object is given by the formula:

PE = mgh

Given:

Density of oil = 50 lb/ft^3

Diameter of the tank = 10 ft ( r = 5 ft)

To calculate the work done, we need to find the mass of the oil and the height it is lifted. Let's start by finding the mass:

Volume of oil in the tank:

The volume of a hemisphere = (2/3) * π * (r^3)

Volume = (2/3) * π * (5^3) = (2/3) * π * 125 = 250π/3 ft^3

Mass of the oil:

Mass = Volume * Density = (250π/3) * 50 lb

Now, we need to find the height of the tank. For a hemisphere, the height is equal to the radius (5 ft).

Finally, we can calculate the work done:

Work = PE = mgh = (250π/3) * 50 lb * 5 ft

Work = (250π/3) * 50 * 5 lb-ft

       = 2500π lb-ft

So, the work done in pumping all the liquid out of the tank is approximately 2500π lb-ft.

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Several radio telescopes are combined into an interferometer in order to 2) observe astronomical objects during daylight hours when the sky is otherwise too bright.

Radio astronomers may combine the signals from several antennas and even telescopes using interferometry. They are able to produce images that are more brighter and more precise than what is feasible with only one antenna dish.

To investigate objects in space, astronomers utilize a variety of telescopes sensitive to various regions of the electromagnetic spectrum. Despite the fact that all light is fundamentally the same, astronomers view light differently depending on the part of the spectrum they are interested in.

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If all the blocks cooperate, the amount of work done by one block on the other will be equal to and in the opposite direction of the amount of work done by the other block on the first.

A block is a solid object with a predictable shape and size that is used to investigate mechanics and other physical qualities in physics. Blocks can be formed of a variety of materials, including plastic, metal, and wood, and they can also be created in a variety of sizes and weights. They are frequently employed to simulate real-world events in experiments, such as the movement of things on a surface or the interaction of two objects. Mechanics principles, such as Newton's laws of motion or the conservation of energy, can be used to examine the motion and behaviour of blocks when they are subjected to external forces like friction, gravity, or applied forces. A key idea in physics education and study, blocks have many applications in engineering, architecture, and other fields.

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Answer:

Explanation:

How did media attention affect Barack Obama's presidential performance?(A)(B)(C)(D)He made a concerted effort to listen to Congress' concerns about his policies.He decided to go on Fox News in an attempt to win over Republican voters.He started traveling the country to give speeches about his policy goals.He began meeting in private with Speaker of the House Nancy Pelosi.

Two athletes are competing in upcoming competitions, a weightlifting meet and a marathon. phosphagen and oxidative energy systems will each be primarily used, respectively.

As it is in charge of high-intensity, brief-duration activity, the phosphagen energy systems generate energy for jumping and sprinting. The quickest and most effective energy producer in muscle activity. Phosphagen metabolism is demonstrated by this system. It uses creatine phosphate to produce ATP (adenosine triphosphate, the chemical which provides energy for all body processes).

Energy is produced by the oxidative energy systems using 30% and 70% of carbs and lipids, respectively. When done for at least 150 minutes a week, aerobic exercise enables the body to experience physiological and health benefits.

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Advantages of composite resin restorations include all of the following, except a. The C factor.

Composite resin restoration is an aesthetic restoration in the field of tooth conservation with the addition of polymers used to repair enamel and dentin. Composite resin is used to restore the function or shape of the teeth to their original state. Composite resin restorations have many advantages, including esthetics, insulation, and the ability to bond to tooth structure.

The C factor, or the configuration factor, is not an advantage of composite resin restorations. The C factor refers to the ratio of bonded to unbonded surfaces in a cavity preparation, and it can have a negative effect on the quality of the restoration. A higher C factor can lead to greater polymerization shrinkage and stress, which can result in gaps, microleakage, and secondary caries. Therefore, the C factor is not an advantage of composite resin restorations.

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Given that the number of hailstones is n = 562

The mass of hailstone is m = 2 g = 0.002 kg

The speed of hailstone is v = 5.8 m/s

The time taken will be t = 92 s

The angle is

We have to calculate the force.

The force can be calculated by the formula

Substituting the values, the force will be

In conclusion, to calculate the recommended daily dosage of mercaptopurine for a child weighing 44 lb, we need to convert the weight to kilograms and then multiply it by the recommended initial dose. This results in a dosage of approximately 29.7 mg/day.

The recommended initial dose of mercaptopurine is 1.5 mg/kg/day p.o. To calculate the recommended daily dosage for a child weighing 44 lb, we need to convert the weight from pounds to kilograms.
First, we know that 1 lb is equal to approximately 0.45 kg. So, we can calculate the weight of the child in kilograms by multiplying 44 lb by 0.45 kg/lb.
44 lb * 0.45 kg/lb = 19.8 kg (rounded to one decimal place)
Now that we have the weight in kilograms, we can calculate the recommended daily dosage by multiplying the weight by the recommended initial dose of 1.5 mg/kg/day.
19.8 kg * 1.5 mg/kg/day = 29.7 mg/day (rounded to one decimal place)
Therefore, the recommended daily dosage for a child weighing 44 lb is approximately 29.7 mg/day.
In conclusion, to calculate the recommended daily dosage of mercaptopurine for a child weighing 44 lb, we need to convert the weight to kilograms and then multiply it by the recommended initial dose. This results in a dosage of approximately 29.7 mg/day.

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Answer: decantation and screening

Explanation:

Answer:

it is A

Explanation:

the person above me helped

Explanation: It's really blurry and sideways

A full stop means that there is a complete cessation of the forward movement of the vehicle, or stop with no forward motion.

If two or more automobiles arrive at a four-way stop at the same time, the car to the right shall proceed first. "If two or more automobiles arrive at a four-way stop at the same moment, the car on the right shall proceed first."

Your headlights will allow you to see roughly 400 feet ahead of you. You should travel at a speed that permits you to stop within this distance, which is around 50 miles per hour.

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Answer:

I hope to learn the basic moves and stances of boxing. I understand that I won't be boxing with another person, but that’s OK. These exercises seem like a good starting point. I really want to understand how to put together combinations. I’ve seen professional boxers throw combinations on TV, but their hands move so quickly that I can’t catch the finer details of the sport. Maybe this will be an opportunity for me to find out more.

Explanation:

Answer:

The correct options are;

a. ii. Savery engine The boiler could not withstand the steam pressure needed to lift water beyond 6 m.

b. i.Gunpowder engine The engine had no mechanism to move the piston back to complete a cycle

c. iii. Newcomen engine The continual reheating needed after each cooling of the engine cylinder required tremendous amount of thermal energy

d. iv. Watt engine This engine was large and massive and less efficient than thought possible

Explanation:

a. The evaporation of the water due to the effect of creating a vacuum limits the Savery's engine pressure differential to about 20 (which is approximately 6 meters) to 25 feet of suction

b. In The gunpowder engine after providing power to a mass, there is less provision to move the piston to a position to lift another mass

c. Energy from burning of fuel was needed to heat the steam cylinder (the steam and the steel wall) repeatedly which consumed a considerable energy in the Newcomen engine

d. In the Watt steam engine the increased efficiency attainable was 17.4% while the actual efficiency was about 11% with the addition of a separate condenser unit.