Imagine that we strike two tuning forks, one with a frequency of 340 Hz, and another with frequency 342 Hz. What will we hear? Hint: what quantity does our response depend on in the case of the sound waves, and is that different or not compared to EM waves?

The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38 Nm. You plan to tighten the plugs by pulling on the end of a 25 cm wrench. Because of the cramped space, you need to pull at an angle of 120 degrees with respect to the wrench shaft. You would need to pull with a force of 219 Newtons.

To determine the force required to achieve a torque of 38 Nm using a wrench, we need to consider the principles of torque and the angle at which the force is applied.

The formula for torque is given by:

Torque = Force × Distance × sin(θ),

Given:

Torque = 38 Nm,

Distance = 25 cm = 0.25 m,

θ = 120 degrees.

Let's solve for the force (F):

38 Nm = F × 0.25 m × sin(120 degrees).

To calculate sin(120 degrees), we need to convert the angle to radians:

120 degrees = (120 degrees × π) / 180 = 2π/3 radians.

38 Nm = F × 0.25 m × sin(2π/3).

F = (38 Nm) / (0.25 m × sin(2π/3)).

F ≈ (38 Nm) / (0.25 m × 0.866).

F ≈ 219 N.

Therefore, you would need to pull with a force of approximately 219 Newtons to achieve the specified torque of 38 Nm using the 25 cm wrench at an angle of 120 degrees.

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Answer:

Presidents use the same criteria: legal expertise, party affiliation, philosophy, an da sense of the acceptability to the Senate. Define majority opinion, concurring opinion, and dissenting opinion.

Explanation:

The angular speed of Titan as it orbits Saturn is approximately 2.205 × 10^-5 radians per second.

To calculate the angular speed of Titan as it orbits Saturn, we can use the formula:

Angular speed = 2π / Time period

Given:

Time period (T) = 15.9 days

First, we need to convert the time period from days to seconds:

Time period (T) = 15.9 days × 24 hours/day × 60 minutes/hour × 60 seconds/minute

Now, let's calculate the time period in seconds:

T = 15.9 days × 24 hours/day × 60 minutes/hour × 60 seconds/minute

≈ 1,372,160 seconds

Next, we can use the formula to calculate the angular speed:

Angular speed = 2π / T

Angular speed = 2 × 3.1416 / 1,372,160

≈ 2.205 × 10^-5 radians per second

The angular speed of Titan as it orbits Saturn is approximately 2.205 × 10^-5 radians per second.

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Answer: on jupiter you would weigh the most  and on mars you would weigh the least

Explanation:

Answer:

the fusion of hydrogen nuclei or in other words "nuclear fusion"

Explanation:

Answer:

do we have to choose 2 answers here?

Answer:

most probably it's C

Explanation:

alveoli is surrounded by capillaries and whit that option small intestines is also there

Answer:

what's the question

Explanation:

I don't understand the question

Answer: the answer is 3rd

Answer:

Its Newton third law of motion.

Explanation:

For every action,there is equal and opposite reaction.

The rms speed of helium atoms near the surface of the Sun at a temperature of about 5400 K is approximately 617 km/s.

This value was calculated using the equation: vrms = sqrt(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of the helium atom.

Plugging in the values:

k = 1.38 x 10^-23 J/K.

T = 5400 K.

m = 6.646 x 10^-27 kg (mass of a helium atom).

vrms = sqrt(3(1.38 x 10^-23 J/K)(5400 K)/(6.646 x 10^-27 kg)) = 617 km/s.

Therefore, the rms speed of helium atoms near the surface of the Sun at a temperature of about 5400 K is approximately 617 km/s.

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Explanation:

hope this may help you

have a nice day

Answer:

d) the object gets bluer

blue wavelengths are shorter than red wavelengths (in the visible spectrum)

blue light will carry more energy than an equivalent amount of red light

The appearance of an object as it gets hotter is that the object gets bluer. Hence, option (d) is correct.

Wavelength is the separation between the equivalent points of two successive waves. When two points or particles are referred to be "corresponding points," it means that they are both in the same phase and have completed exactly the same portions of their vibration. Typically, the wavelength of transverse waves—those whose points advance at right angles to one another—is assessed from crest to crest or from groove to trough; for longitudinal waves—those whose points advance in the same direction—the wavelength is measured from compression to compaction or from rarefaction to rarefaction.

A wave train's speed (v) in a medium is equal to its frequency (f), hence the formula for wavelength is v/f. Wavelength is commonly represented by the Greek character lambda λ.

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Answer:

See explanation

Explanation:

Given that;

q1 and q2 are the magnitudes of the two charges while r1 is the distance between the charges.

F1 =kq1q2/r1^2

Then,

F2 = kq1q2/(2r1)^2

F2 = kq1q2/4r1^2

So,

F2 = 1/4 F1

The force between the charges changes by a factor of 1/4.

To calculate the work done by the man to lift the package, we need to use the formula:

Work = force x distance x cos(theta), where force is the force applied by the man (250 N), distance is the distance the rope is pulled (10 m), and cos(theta) is the angle between the direction of the force and the direction of the displacement (in this case, it is 0 because the force is applied in the same direction as the displacement). The work done by the man to lift the package is then: Work = 250 N x 10 m x cos(0) = 2500 J. To lift the 1000 N package a distance of 2 m, the work done by the man must be equal to the work done against gravity, which is given by: Work = force x distance = 1000 N x 2 m = 2000 J. Therefore, the man's force of 250 N was sufficient to lift the 1000 N package a distance of 2 m, and he did 2500 J of work in the process.

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Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2

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Answer:

The final speed of the second bicycle is (v·√2)/2

Explanation:

The mass of the given bicycle = m

The amount of work required to move the bicycle from rest to speed v = 50 J

The final speed of the first bicycle = v

The mass of the second bicycle = 2m

Therefore, from conservation of energy, we have;

Work required by the first bicycle = Kinetic energy gained by the bicycle

The kinetic energy = 1/2·m·v²

∴ Energy required by the first bicycle = 50 J = 1/2·m·v²

Given that the same amount of work is performed on the second bicycle, we have;

Work performed on the second bicycle = 50 J = kinetic energy of second bicycle = 1/2·(2·m)·v₂²

Also, given that 50 J = 1/2·m·v², we have;

Work performed on the second bicycle = 50 J = 1/2·m·v²= 1/2·(2·m)·v₂²

1/2·m·v²= 1/2·(2·m)·v₂²

m·v² = 2·m·v₂²

v² = 2·v₂²

v₂ = √(v²/2) = v/√2 = (v·√2)/2

v₂ = (v·√2)/2

The final speed of the second bicycle = v₂ = (v·√2)/2.

Answer:

Gamma rays have the highest energies.

Explanation:

HOPE IT WILL HELP ^_^

Answer:

Gamma rays have the highest frequencies.

Explanation:

Scalar quantities have magnitude only, while vector quantities have magnitude and direction. Scalars can be added algebraically, while vectors follow specific rules. Scalars have a single value, while vectors require representation with magnitude and direction.

Scalar quantities and vector quantities are two fundamental types of physical quantities used in physics. Here are five key differences between scalar and vector quantities:

1. Definition: Scalar quantities are defined by magnitude only, meaning they have a numerical value but no specific direction. Examples of scalars include time, temperature, mass, and speed. In contrast, vector quantities have both magnitude and direction. Examples of vectors include displacement, velocity, force, and acceleration.

2. Representation: Scalar quantities are represented by a single numerical value or variable, often accompanied by appropriate units. For instance, temperature can be represented by a value like 25 degrees Celsius. Vector quantities, on the other hand, require a representation that includes both magnitude and direction. This can be achieved using vectors or by using a combination of numerical values and angles.

3. Addition and Subtraction: Scalar quantities can be added or subtracted algebraically by simply considering their numerical values. For example, adding two temperatures of 10 degrees Celsius and 15 degrees Celsius gives a result of 25 degrees Celsius. In contrast, vector quantities follow different rules for addition and subtraction. Vector addition involves considering both the magnitude and direction of the vectors, using methods such as the parallelogram law or the triangle law.

4. Algebraic Operations: Scalar quantities can undergo all basic algebraic operations, such as multiplication, division, addition, and subtraction. These operations apply only to the numerical values of the scalars. Vector quantities, however, have additional operations specific to vectors, including dot product and cross product, which involve both the magnitude and direction of the vectors.

5. Physical Interpretation: Scalar quantities represent quantities that can be fully described by a single value, such as the magnitude of a quantity. For example, the speed of an object is a scalar that represents the magnitude of its velocity. Vector quantities, on the other hand, have physical interpretations that involve both magnitude and direction. For instance, displacement represents both the distance and the direction from the starting point to the endpoint.

In summary, scalar quantities have magnitude only, while vector quantities have both magnitude and direction. Scalars are represented by single numerical values, while vectors require representation with both magnitude and direction. Scalar quantities can be algebraically added or subtracted, whereas vector quantities follow specific rules for vector addition and subtraction. Scalars can undergo all basic algebraic operations, while vectors have additional vector-specific operations. Scalar quantities represent fully describable quantities, while vector quantities require consideration of both magnitude and direction for a complete description.

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Answer:

\(r = \frac{v}{i} = v = ri \\ i = \frac{v}{r} \)

Answer:

no se entiende nada lo siento

The period of the pendulum on the surface of Mars, where g = 3.71m/s², would be the same as the period on Earth, 1.70s.  The pendulum on the surface of Mars has a period of roughly 3.31 seconds, according to our calculation of this expression.

A basic pendulum's period is determined by the equation T = 2(L/g), where T is the period, L is the pendulum's length, and g is the acceleration brought on by gravity.

L = (T/(2))2g can be solved for on Earth with a period of 1.70s by rearranging the equation.

Using the same equation and the Mars surface gravity, g = 3.71m/s2, we can now get the period on Mars' surface: T\(_{mars}\) = 2(L/g\(_{mars}\)).

The equation T\(_{mars}\) = 2(((T/(2))2g)/(g\(_{mars}\))) is obtained by substituting the expression for L and the surface gravity of Mars.

T\(_{mars}\) = T(g/g_Mars), to simplify the formula.

T\(_{mars}\) = 1.70s(9.81m/s2 / 3.71m/s) is the result of plugging in the data. The pendulum on the surface of Mars has a period of roughly 3.31 seconds, according to our calculation of this expression.

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Answer:

decreases

Explanation:

halves and the speed remains unchanged.

Answer:

They are gaining energy, can move and slide past each other.

Explanation:

Because as ice melts, the molocules gain energy/heat which warm them up and are able to slide/move apart from each other.

Answer:

what's the question?........

The steam engine does 60 kilojoules of useful work out of the 300 kilojoules of energy supplied, since its efficiency is only 20%.

What is the amount of useful work done by a steam engine with 20% efficiency, if the input energy is 300 kilojoules?

The efficiency of a steam engine is a measure of how much of the input energy is converted into useful work. In this case, we know that the efficiency of the steam engine is 20%, which means that only 20% of the input energy is converted into useful work.

To find out how much work the steam engine does, we use the formula:

Useful work = Input energy x Efficiency

In this formula, the input energy is the amount of energy that is supplied to the steam engine, and the efficiency is the percentage of that energy that is converted into useful work.

So, in this case, we know that the input energy is 300 kilojoules, and the efficiency is 20%. we get:

Useful work = 300 kilojoules x 0.20

Useful work = 60 kilojoules

Therefore, the steam engine does 60 kilojoules of useful work. This means that out of the 300 kilojoules of energy that were supplied to the steam engine, only 60 kilojoules were converted into useful work, and the remaining 240 kilojoules were lost as heat or other forms of energy.

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The age limit to drink beer is 17 or 18 and up

The weight of the box is: 10 kg,

the distance it was carried is: 20 m,

and the speed at which it was carried is: 1 m/s,

and the work done is: 200 kgm

In order to calculate the amount of work done on a box by a woman carrying it across a room at a constant speed, we need to know the weight of the box, the distance it was carried, and the speed at which it was carried. Work is calculated by multiplying the force applied (the weight of the box) by the distance it was moved (the distance traveled).

For example, if the weight of the box is 10 kg, the distance it was carried is 20 m, and the speed at which it was carried is 1 m/s, then the work done is 10 kg x 20 m = 200 kgm. This is the amount of work done on the box by the woman carrying it.

To summarize, the amount of work done on a box by a woman carrying it across a room at a constant speed depends on the weight of the box, the distance it was carried, and the speed at which it was carried. If all of these variables are known, the work can be calculated by multiplying the weight by the distance.

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Answer:

Divide by the number 100

Explanation:

Since there are 100 centimeters in 1 meter, we can see that if you are given a number in centimeters, the number of meters is that number divided by 100. Hope this helps!

Answer:

Divide by 100

Explanation:

The current through each bulb is 0.15A.

D)

V = Voltage across each bulb = 120 Volts

i400 = current in 400 ohm resistor = V/R = 120/400 = 0.3 A

i800 = current in 800 ohm resistor = V/R = 120/800 = 0.15 A

E)

P400 = V2/R400 = 1202/400 = 36 Watt

P800 = V2/R800 = 1202/800 = 18 Watt

F)

Ptotal = 36 + 18 = 54 Watt

Current refers to the flow of electric charge through a conducting medium. It is defined as the amount of charge that passes through a given cross-sectional area per unit of time. The SI unit of current is the ampere (A), which is defined as the flow of one coulomb of electric charge per second.

In an electric circuit, the current flows from a higher potential to a lower potential, and the direction of the current is taken as the direction in which positive charges would flow. In DC, the current flows in one direction only, while in AC, the current changes direction periodically. The magnitude of the current depends on the potential difference across the circuit and the resistance of the circuit.

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Complete Question:

Two light bulbs have resistances of 400 Ω and 800 Ω.

D). the two light bulbs are now connected in parallel across the 120- v line. find the current through each bulb.

E). Find the power dissipated in each bulb.

F). Find the total power dissipated in both bulbs.

Given that the balloon is negatively charged and it is touching a wooden wall, the ballon will perform all the actions given in the answer choices.

A negatively charged balloon will pull positive charge on the wall surface towards it, since opposite charges attract each other.

Also, the negatively charged balloon touching a wooden wall will push any negative charge in the wall away from it. This is because like charges repel each other.

The negatively charged balloon also polarizes the molecules on the wall. This is because in molecules, atoms are bonded together since protons in one atom attract the electrons in the cloud of another atom.

Therefore, the correct choice is All of the above

ANSWER:

All of the above