determine the henry's law constant for ammonia in water at 25°c if an ammonia pressure of 0.022 atm produces a solution with a concentration of 0.77 m.

Answer: Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

Explanation: hope this helps!

Answer:

a=5m/s

Explanation:

Forces going to the left:  \(F_{3}\)

Forces going to the right: \(F_{1}\) and \(F_{2}\)

To indicate the different directions, let the forces going to the left be negative, and the sign on forces going to the right be positive.

The total forces acting on the system are:

\(F_{1}\) + \(F_{2}\) + \(F_{3}\)

100N + 80N - 30N = 150N

The overall force is therefore 150N going to the right (sign is positive). Now time to find the overall acceleration:

Force = mass * acceleration

150 = 30a

a=5m/s

At constant velocity, the crate would be in equilibrium, so that Newton's second law tells us

p + (-f ) = 0

where p and f denote the magnitudes of the added pushing force and friction force, respectively.

The friction force is proportional to the normal force by a factor of µ, the coefficient of friction. There's no vertical movement going on, so Newton's second law says

n + (-w) = 0

where n and w are the magnitude of the normal force and the weight of the crate, respectively.

Compute n :

n = w = (25 kg) (9.80 m/s²) = 245 N

Use this and µ = 0.45 to compute f :

f = µ n = 0.45 (245 N) = 110.25 N

Solve for p :

p + (-110.25 N) = 0

p = 110.25 N ≈ 110 N

The force i.e required to move the crate at a constant velocity across the floor is 110 N.

At the same velocity, the crate should be in equilibrium, so as per Newton's second law, the following formula should be used:

p + (-f ) = 0

p means the magnitudes of the added pushing force

f means the friction force

n = w = (25 kg) (9.80 m/s²) = 245 N

Now

force should be

= µ n

= 0.45 (245 N)

= 110.25 N

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Answer:

yes it would u just wouldn't be able to hit him as hard as u would if u were using your dominate hand

Explanation:

Answer:

An ammeter.

Explanation:

The electric current in one part of a circuit is measured with an ammeter, which gives a reading in ampere.

Answer:

Answer:

hiatory

Explanation:

Answer:

answer

Explanation:

this is the answer with annotation and law

Answer:

The sound waves from a radio speakers

Explanation:

Answer: no

Explanation: speed = rate of change of distance; distance/time

                     velocity = rate of change of displacement; displacement/time

Technician A and B both are wrong. This is because wire resistance depends on the length and gauge of the wire. It is not a fixed value. Therefore, both technicians' statements are false are the Resistance is the opposition to current flow It is calculated by Ohm's Law

Resistance = Voltage / Current According to Ohm's Law, resistance is proportional to voltage and inversely proportional to current. The resistance of the wire depends on its length and gauge. Resistance increases as wire length increases, and it decreases as wire gauge increases. However, the resistance of a wire is not a fixed value. It varies depending on the wire's length and gauge. Therefore, both technicians' statements are false.

According to the given problem, both technicians have made an incorrect statement. Technician A states that wire resistance should be approximately 12,000 ohms per foot, and Technician B says that resistance should be about 50,000 ohms maximum for long spark plug cables.Both of these statements are incorrect. This is because the resistance of a wire depends on its length and gauge, as discussed above. Furthermore, the values they mentioned are not universal; they only apply to specific scenarios.The resistance of a wire increases as its length increases. Therefore, the resistance of a long spark plug cable is higher than that of a short spark plug cable. In addition, as the gauge of the wire decreases, the resistance increases. As a result, the resistance of a thin wire is higher than that of a thick wire.

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Answer: A.

Explanation: Because it is like when you rub your knees on a rug it is tensional so that would make it a not active force.

Answer:

Object A

Explanation:

Mass of an object= Volume × denstiy

Object having higher density will have greater mass

Next,

According to second law of Newton

Force= mass× acceleration

Force= mass× change is velocity/ time

For an equal amount of time, if change in velocity is equal then object with higher mass will have higher force. Hence, greater density, greater is mass and larger is the force.

Required power  to lift a 12N box at 4.5m/s be 54 Watts. Option (D) is correct.

Power can be defined as the amount of work completed in a given amount of time. Watt (W), which is derived from joules per second (J/s), is the SI unit of power.

Horsepower (hp), which is roughly equivalent to 745.7 watts, is a unit of measurement sometimes used to describe the power of motor vehicles and other devices.

Mathematically,

Power = work done/time = { required force × distance}/time

= required force  × {distance/time}

= required force × velocity.

Given that:

Weight of the box = 12 N.

Speed of the box = 4.5 m/s.

Hence, required power = weight of the box × Speed of the box

= 12 N ×  4.5 m/s.

= 54 Watts.

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To solve this we must be knowing each and every concept related to variables. Therefore, because the evidence cards all represent variables, none of them should be deleted.

A variable is any trait, characteristic, number, or quantity that changes over time or may take on different values in different contexts (as contrast to constants, such as n, which do not change).

Magnetic pole configuration is a variable since its values can vary.

The quantity of coils is indeed a variable since it might have several numbers.

Rail material is indeed a variable since its values might vary.

The distance between the automobile and the launcher is flexible since it might take various values.

Therefore, because the evidence cards all represent variables, none of them should be deleted.

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(a) The coefficients of static friction between the skates and the ice is 0.37.

(b) The coefficients of kinetic friction between the skates and the ice is 0.32.

The coefficient of static friction is the ratio of force of friction to weight of the object.

μ = Ff / R

where;

The coefficients of static friction between the skates and the ice is calculated as follows;

μ = Ff / R

μ = ( 198 N ) / ( 55 kg x 9.8 m/s² )

μ = 0.37

The coefficients of kinetic friction between the skates and the ice is calculated as follows;

μ = Ff / R

μ = ( 175 N ) / ( 55 kg x 9.8 m/s² )

μ = 0.32

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Answer:

B

Explanation:

.....50N-20N =30N ...

Answer:

B.  30 N to the right

Explanation:

The weight of the car, 2500 N, is pushing down while the road is pushing up with a force of equal magnitude. Those forces cancel each other out. The car is being pushed to the left with a force of 20 N and to the right with a force of 50 N. Thus, the cumulative force is 30 N to the right.

I would like assure Nancy by telling her her Dementia is not inevitable; while 10% will develop dementia in their lifetime, less than half of people above age 84 will have it. So there is a 90% chance that Nancy might not lose her memory or judgement.

Dementia is described as a general term for loss of memory, language, problem-solving and other thinking abilities that are severe enough to interfere with daily life.

Dementia is characterized by impairment of at least two brain functions, such as memory loss and judgement.

So there are high chances that Nancy  might not lose her memory or judgement and normal functioning.

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Answer:

Just because they can run doesn't mean they are fast

Explanation:

you could take a day to run across a football field, or you can take 5 minutes, which is faster?

You're friend in this equation has little to no braincells so they would have trouble seeing that running the length of a football field in five minutes is faster than a day, however, if they also said they did it in less than five minutes then it would mean your friend is fast

Answer:

La Ley de Ohm muestra la relación que existe entre una resistencia, la tensión o voltaje en sus terminales y la corriente que pasa a través de ella.

Explanation:

The water budget equation for the Creek drainage basin is: Precipitation = Stream discharge + Evapotranspiration ± Change in storage.

To develop the water budget equation for this problem, we need to account for the inputs and outputs of water in the Creek drainage basin. The water budget equation can be expressed as,

P = Q + ET ± ΔS

P = Precipitation input (mm)

Q = Stream discharge (m³/s)

ET = Evapotranspiration (mm)

ΔS = Change in storage (mm)

First, let's convert the units of the given values,

Precipitation input (P) = 550 mm

Stream discharge (Q) = 1.8 m³/s

Now, let's determine the evapotranspiration (ET) and change in storage (ΔS) terms. However, the problem doesn't provide information about ET, so we cannot calculate it accurately. The problem doesn't provide information about ΔS, so we cannot calculate it accurately.

Given these limitations, we can write the simplified water budget equation for this problem,

550 mm = 1.8 m³/s + ET ± ΔS

Please note that without information about evapotranspiration and changes in storage, we cannot fully determine the water budget for the Creek drainage basin.

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Answer:

3.5 m/s

Explanation:

Speed = Distance / Time

= 70 m / 20 s

= 7 / 2 m/s

= 3.5 m/s

Answer:

A generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field.

Answer:

When electricity is passed through the wire, it produces an electromagnetic field. This field pushes on the magnet, causing it to rotate. The rotation can be harnessed to push a wheel or other device.

Explanation:

Hope this helps ^^

The data obtained from radioactive decay experiments can demonstrate the constancy of the half-life for a given isotope. This is because the number of radioactive atoms decreases by half in a fixed amount of time, regardless of the initial number of atoms present.

In other words, the rate of decay is constant and not affected by external factors such as temperature or pressure. The points in a plot of radioactive decay may miss the curve due to statistical fluctuations in the counting process.  This can cause some points to be higher or lower than expected, leading to a deviation from the ideal curve.

Using a shorter period for taking counts in a radioactive decay experiment can affect the results obtained from a plot of ln(N) vs time. The shorter time interval would result in a smaller number of counts being detected, leading to a larger uncertainty in the measurement of activity. This would in turn affect the slope of the plot, which is used to calculate the half-life.

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When two asteroids approach Earth at the same speed, the one with the greater mass will possess more kinetic energy.

Kinetic energy is the energy possessed by an object due to its motion, and it can be calculated using the formula KE = 0.5 * m * v², where KE is kinetic energy, m is the object's mass, and v is its velocity.

Given that two asteroids approach Earth at the same speed, their velocities (v) are equal. However, to determine which asteroid has more kinetic energy, we need to compare their masses (m). In this scenario, the asteroid with the greater mass will have more kinetic energy because of the mass component in the kinetic energy formula.

It is essential to note that an asteroid's kinetic energy is a crucial factor when assessing the potential damage it could cause upon impact. A more massive asteroid with more kinetic energy would release more energy upon impact, potentially resulting in more significant damage to Earth and its environment.

In summary, when two asteroids approach Earth at the same speed, the one with the greater mass will possess more kinetic energy due to the dependence of kinetic energy on mass in the KE = 0.5 * m * v² formula.

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Answer: It is the product of the (force)multiplied by the (perpendicular) distance from the line of action of the force to the pivot

Explanation:

The rate at which heat is absorbed from the hot reservoir is 158333.33 kW and the rate at which heat is discarded to the cold reservoir is 63333.33 kW. The rate at which heat is absorbed from the hot reservoir is 271428.57 kW and the rate at which heat is discarded to the cold reservoir is 176428.57 kW.

Given that the power produced by the heat engines is 95000 kW. The rates at which heat is absorbed from the hot reservoir and discarded to the cold reservoir have to be determined in each of the following cases:

a) A Carnot engine operates between heat reservoirs at 750 K and 300 K.

The efficiency of the Carnot engine is given by

η = 1 - Tc / Th

Where,η = efficiency of the engine

Tc = Temperature of cold reservoir

Th = Temperature of hot reservoir

Substituting the given values we get,

η = 1 - 300/750= 0.6

Therefore, the thermal efficiency of the Carnot engine is 60%.

The rate at which heat is absorbed from the hot reservoir can be calculated using the formula

Qh = P / η

Where,

Qh = rate at which heat is absorbed from the hot reservoir

P = Power of the engine

Substituting the given values we get,

Qh = 95000 / 0.6= 158333.33 kW

The rate at which heat is discarded to the cold reservoir can be calculated using the formula

Qc = Qh - P

Where,

Qc = rate at which heat is discarded to the cold reservoir

Substituting the given values we get,

Qc = 158333.33 - 95000= 63333.33 kW

Therefore, the rate at which heat is absorbed from the hot reservoir is 158333.33 kW

and the rate at which heat is discarded to the cold reservoir is 63333.33 kW.

b) A practical engine operates between the same heat reservoirs but with a thermal efficiency of 35%The rate at which heat is absorbed from the hot reservoir can be calculated using the formula

Qh = P / η

Where,

Qh = rate at which heat is absorbed from the hot reservoir

P = Power of the engineη = efficiency of the engine

Substituting the given values we get,

Qh = 95000 / 0.35= 271428.57 kW

The rate at which heat is discarded to the cold reservoir can be calculated using the formula

Qc = Qh - P

Where,

Qc = rate at which heat is discarded to the cold reservoir

Substituting the given values we get,

Qc = 271428.57 - 95000= 176428.57 kW

Therefore, the rate at which heat is absorbed from the hot reservoir is 271428.57 kW and the rate at which heat is discarded to the cold reservoir is 176428.57 k:

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Answer:

(B) Conduction

Explanation:

Answer:

a ) conduction

Explanation:

it's a because if u think about it a conductor keeps the heat from getting to a certain part of the metal

Answer:

A) R = 190.42 Ω

B) P = 5.325 W

Explanation:

We are given;

Total power;P_tot = 7.1 W

Voltage;V = 26 V

A)We are told that while the battery is still connected, one of the resistors is heated, so that its resistance doubles.

Thus, the power is doubled.

Now, formula for power is;

P = IV

Thus, since power is doubled, we have;

P = 2(IV)

Now, formula for current is; I = V/R

So, P = 2V²/R

Making R the subject, we have;

R = 2V²/P

In this question, P is p_total = 7.1 W

Thus;

R = (2 × 26²)/7.1

R = 190.42 Ω

B) Now, the resistance of the resistors are R and 2R.

Formula for power in this context is;

P = V²/R

Thus,

Total power delivered to the resistors is;

P = V²/R + V²/2R

P = 3V²/2R

P = (3 × 26²)/(2 × 190.42)

P = 5.325 W

First find the diameter of each.

Jupiter’s diameter is 86,881 mi.

Earth’s diameter is 7,917.5 mi.

Then divide those two.

Rounded, Jupiter is 11 times larger.

unrounded: 10.9732870224186927691821913482791285127

Finding out how large something is compared to something can be done by dividing.

For example I have two dogs. One dog is 3 feet tall. The other is 2 feet tall. How much taller is dog one? Dog one is 1.5 times larger because 3/2 = 1.5 AND 2 x 1.5 = 3.

So for this case multiplying Earth’s diameter by 10.9732870224186927691821913482791285127 will give you Jupiter’s diameter.