A person with body fosistance between his hands of 13kn accidentally grasps the terminals of a 16kV power supply. If the internal resistance of the power supply is 1700Ω, what is the current through the person's body? Express your answer with the sppropriate units. Part B What is the power disspeled in his body? Exprese your answer with the appropriate units. Part C It the power wupply is io be made sale by increasing its internal resatance, What should ehe internal resistance bo for the m. abore situation to be tmas ​=1.0 m h h or less? Express your answer with the appropriate units.

Answer:

We can use Coulomb's law to solve this problem:

F = k * q1 * q2 / r^2

where F is the force between the two charges, k is Coulomb's constant (k = 9 x 10^9 N m^2 / C^2), q1 and q2 are the magnitudes of the charges, and r is the distance between them.

We know the force F, the distance r, and the magnitude of one of the charges q1. We can rearrange the equation to solve for the magnitude of the other charge q2:

q2 = F * r^2 / (k * q1)

Substituting the values we have:

q2 = (250 N) * (0.15 m)^2 / (9 x 10^9 N m^2 / C^2 * 6.5 x 10^-5 C)

Simplifying:

q2 = 8.65 x 10^5 C

Therefore, the magnitude of the other charge is 8.65 x 10^5 C.

Explanation:

Camels have wider hoofs, the reduced pressure of their feet makes the camel run faster in the desert. Their eyes are used to blowing sand so it does not affect their speed.

As they have a wider hoofs their foot dont sink in sand so they can easily run or walk.

Answer:

because camels have wider hoofs and reduced pressure of their feets

The number of turns in the secondary coil of the transformer is 50.

What is a Transformer?

The transformer is a device used to increase or decrease the input voltage.

The ratio of the output voltage to the input voltage gives the turn ratio of the secondary coil and the primary coil. The ratio is given by the formula,

V2/V1=n2/n1

where V2 is the output voltage, V1 is the input voltage, n2 is the number of turns on the secondary coil and n1 is the number of turns on the primary coil.

Given V1=120 V, V2= 6 V, and n1=1000 turns, substitute these values in the above formula and solve it to get the value of n2.

6/120 = n2/1000

n2=6*1000/120

n2=50

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Each light bulb receives a voltage of 1 V and a current of 2 A from the battery.

Electric current is the flow of electric charge through a material. It is typically expressed in units of amperes (A), which represent the rate at which charge flows through a conductor.

Here,

Since the two light bulbs are identical, they have the same resistance. The total resistance of the circuit can be found using Ohm's Law,

V = IR

where V is the voltage of the battery, I is the current in the circuit, and R is the total resistance of the circuit. Plugging in the given values, we get:

2 V = 2 A × R

R = 1 ohm

Since the two bulbs are identical and connected in series, they each have a resistance of 0.5 ohms (which adds up to the total resistance of 1 ohm).

The voltage across each bulb can be found using Ohm's Law again:

V = IR

where V is the voltage across the bulb, I is the current through the bulb (which is the same as the current in the circuit, 2 A), and R is the resistance of the bulb (0.5 ohms). Plugging in the values, we get,

V = 2 A x 0.5 ohms = 1 V

Therefore, each light bulb receives a voltage of 1 V and a current of 2 A from the battery.

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Answer:

if there isn't a shorting mechanism, the whole sets will be blown out several lamps and then shortened, the overall resistance of the remaining operating lamps will be decreased resulting in an increased working current that is adequate to blast the fuse

Answer:

Opera seria,

Explanation:

This means that the probability of getting less than 80% heads is at least 0.75.

To solve this problem, we can use Markov's inequality which states that for any non-negative random variable X and any a>0, the probability that X is at least a is bounded by E(X)/a.
In this case, our random variable X is the number of heads that come up in n tosses of the biased coin. Since the probability of getting a head is 0.2, we know that the expected number of heads is 0.2n.
To bound the probability of getting at least 80% heads, we want to find the probability that X is at least 0.8n. Using Markov's inequality, we have:
P(X >= 0.8n) <= E(X) / (0.8n)
Substituting in our values, we get:
P(X >= 0.8n) <= 0.2n / (0.8n)
P(X >= 0.8n) <= 0.25
So the probability of getting at least 80% heads on n tosses of a biased coin that comes up with heads with probability 0.2 is bounded by 0.25.

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Answer:

5m

Explanation:

Using Pythagoras theorem,

a^2+ b^2=c^2

3^2+4^2=c^2

25=c^2

√(25)=c

5m=c

Answer:

The comet is locked in the Sun's gravity. as it falls deeper in the gravity we'll, its velocity increases. As is travels closer to the Sun, it is trying to break away, but cannot. This transforms into a sideways movement that produces a tight turn. It races further out of the gravity well, and sheds velocity.

Given that we need to determine (5 + j6) divided by (3 - j2), with the final result in rectangular form.

Thus, we can find the result by using the below mentioned steps:Step 1: Firstly, let's multiply numerator and denominator by the conjugate of the denominator which is (3 + j2).(5 + j6) (3 + j2) / (3 - j2)(3 + j2) = (15 + j10 + j18 + j²12) / (9 + 4)(5 + j6) (3 + j2) / 13 = (27 + j28) / 13Step 2: Now, the final answer is in rectangular form so the answer will be a complex number in rectangular form, i.e., a + jb. Thus, the answer of (5 + j6) / (3 - j2), with the final result in rectangular form is (27/13 + j(28/13)). Hence, the required answer is (27/13 + j(28/13)).

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Answer:

V₂ = 19 [m/s]

Explanation:

The final linear momentum will be equal to the sum of the initial momentum plus the momentum received.  By means of the following equation, we can determine the final momentum.

\(m_{1}*v_{1} + IMP_{1-2} = m_{2}*v_{2}\)

where:

m₁ = m₂ = mass = 30 [kg]

v₁ = velocity = 11 [m/s]

IMP₁-₂ = 240 [kg*m/s]

v₂ = final velocity [m/s]

\((30*11) + 240 = 30*V_{2}\\330 + 240 = 30*V_{2}\\v_{2}=19 [m/s]\)

The final velocity of the object is 19 m/s

The impulse is given by:

Impulse = m(v - u)

where m is the mass, v is the final velocity and u is the initial velocity.

Given that impulse = 240 kgm/s, u = 11 m/s, m = 30 kg. Hence:

Impulse = m(v - u)

240 = 30(v - 11)

8 = v - 11

v = 19 m/s

The final velocity of the object is 19 m/s

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If a comet were to orbit the sun with a highly eccentric orbit and an average (semimajor axis) distance of 1 au, we might use Kepler's third law of planetary motion to determine that each orbit would take one year to complete.

To find the answer, we need to know about the Kepler's third law of planetary motion.

                       \(a=1AU\\T=(1)^{3/2}=1 year\)

Thus, we can conclude that, If a comet were to orbit the sun with a highly eccentric orbit and an average (semimajor axis) distance of 1 au, we might use Kepler's third law of planetary motion to determine that each orbit would take one year to complete.

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Answer:

a_max = 50 cm/s^2

Explanation:

To find the magnitude of the maximum acceleration of the particle, you take into account the equation of motion in a simple harmonic motion:

\(x=Acos(\omega t)\)

ω: angular velocity = 10 rad/s

A: amplitude = 5 cm

The acceleration is given by:

\(a=\omega^2 x\)

and the maximum acceleration is obtained when the cosine function is maximum, that is, when cos(wt) = 1. Then, you have:

\(a_{max}=\omega^2 x_{max}=\omega^2A\)

Then, you replace the values of w and A in order to calculate a_max:

\(a_{max}=(10rad/s)^2(5cm)=50\frac{cm}{s^2}\)

hence, the maximum acceleration is 50 cm/s^2

Answer: Fluorine has seven valence electrons, so it is most likely to gain one electron to form an ion wit a 1- charge.

Explanation:

A fluorine atom can attract one additional electron to fill its outermost shell and achieve a stable electron configuration. This ability to attract electrons is due to fluorine's high electronegativity, which is a result of its small atomic size and high nuclear charge. The strong attraction between fluorine and electrons makes it highly reactive and capable of forming strong chemical bonds with other elements.

Atoms are composed of positively charged protons, negatively charged electrons, and neutral neutrons. The number of electrons in an atom determines its chemical properties, as the electrons are involved in chemical bonding. Some atoms have a tendency to attract additional electrons to fill their outermost electron shell, which can result in the formation of ionic or covalent bonds. Fluorine is one such atom that has a strong tendency to attract additional electrons due to its high electronegativity.

Fluorine is a highly electronegative element, meaning it has a strong tendency to attract electrons towards itself. This is due to its small atomic size and high nuclear charge, which results in a strong electrostatic attraction between the positively charged nucleus and the negatively charged electrons.

Fluorine has seven electrons in its outermost shell, which means it is only one electron short of having a full outer shell. This makes fluorine highly reactive, as it has a strong tendency to attract an additional electron to fill its outer shell and achieve a stable electron configuration. When fluorine attracts an additional electron, it forms a negative ion called fluoride.

The strength of fluorine's electronegativity can be quantified using a scale called the Pauling scale. Fluorine has the highest electronegativity of all the elements on the periodic table, with a Pauling electronegativity value of 4.0. This means that fluorine can attract electrons more strongly than any other element, making it highly reactive and capable of forming strong chemical bonds with other elements.

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The x-coordinate of the center of mass of a system can be determined by calculating the weighted average of the x-coordinates of the individual point masses.

The formula for the x-coordinate of the center of mass (xcm) is: xcm = (m1x1 + m2x2 + ... + mnxn) / (m1 + m2 + ... + mn)
Where m1, m2, ..., mn are the masses of the objects and x1, x2, ..., xn are their respective x-coordinates. To determine the x-coordinate of the center of mass, calculate the weighted average of the x-coordinates of the point masses using the given formula. The formula takes into account both the mass and the position of each object. By summing the products of mass and position, and dividing it by the sum of the masses, we obtain the x-coordinate of the center of mass.

The x-coordinate of the center of mass is a measure of the average position of the system along the x-axis. It provides valuable information about the distribution of mass in the system. To determine it, you need to know the masses of the individual objects and their respective x-coordinates. The formula for the x-coordinate of the center of mass involves summing the products of mass and position, and dividing it by the sum of the masses. This weighted average accounts for the fact that objects with larger masses have a greater influence on the overall position of the center of mass. By using this formula, you can find the x-coordinate of the center of mass for any system of point masses.

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bebe xd mexico gana siempre

(a) The angle the planks make with the ground in order for the lathe to slide down at constant velocity is 90⁰.

(b) Yes, at this angle the lathe will start sliding at constant velocity because of the sharp steepness.

The given parameters:

The net force on the wooden skids is calculated as follows;

\(\Sigma F = 0\\\\F - \mu mg cos\theta = 0\\\\ma - \mu mg cos\theta = 0\\\\ma = \mu mg cos \theta \\\\a = \mu g cos\theta\\\\at \ constant \ velocity , \ a = 0\\\\0 = \mu g cos \theta\\\\cos \theta = 0\\\\\theta = 90 ^0\)

Yes, at this angle the lathe will start sliding at constant velocity because of the sharp steepness.

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Answer:

The differential equation gives the angular velocity as sqrt(k/m) where m = mass of the object = 125/9.8 = 12.755.     Where k = spring constant, pi = 3.14

We are told that the period is 3.56 seconds. But angular velocity = (2*pi)/P     where p (period) = 3.56 seconds.

Equating the two angular velocity expressions gives (2*pi)/3.56 = sqrt(k/12.755)

Solving for k, we get k = 39.73.

Explanation:

The value of ay would be different if you used a metal ball of a different mass.

The acceleration due to gravity (ay) is equal to the force of gravity divided by the mass of the object, so if the mass of the object is increased, the acceleration due to gravity will be decreased. Therefore, if you used a metal ball that was ten times heavier, the acceleration due to gravity (ay) would be decreased by a factor of 10.
When using a metal ball of a different mass, the value of ay would be different. This is because acceleration is inversely proportional to mass, meaning that a heavier object will have a lower acceleration compared to a lighter object.

Therefore, the value of ay will be lower if a metal ball of ten times heavier mass is used compared to the original metal ball used

We know that force is given by:

F = ma

Where,

F: force exerted on the object

m: mass of the object

a: acceleration of the object

Therefore, we can rearrange the equation to get: a = F/m

From this equation, it is clear that acceleration is inversely proportional to mass. This means that a heavier object will have a lower acceleration compared to a lighter object. In the given case, if a metal ball of ten times heavier mass is used compared to the original metal ball used, the value of ay will be lower. This is because the force exerted on the object is the same, but the mass is ten times higher.

Hence, acceleration will be lower. Therefore, the value of ay will be different if a metal ball of different mass is used.

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Answer:

Joule

Explanation:

the unit of work is Joule determined by the letter J.

Answer:

Explanation:

Joule is defined as the work done by a force of one newton causing a displacement of one meter. Sometimes, newton-metre (N-m) is also used for measuring work.

Water has a stronger force of attraction between its particles than methane.

To justify this we have to remember that temperature is a measure of the kinetic energy of the particles (atoms and molecules) in a given system. As temperature increase the kinetic energy increases as well; now larger molecules will have more electron and nucleis that attract with each other, then they will need more kinetic energy (temperature) to boil.

Answer: W=M*gravity. 90 * 9.8=882N. That is the weight on Earth.

Explanation:

Calculating the weight is W=M*gravity. 90 * 9.8=882N. That is the weight on Earth.

Answer:

198.4 lbs

Explanation:

Answer:

1.52 kJ

Explanation:

Total kinetic energy in gas K = 3NkT/2 where N = number of molecules, K = Boltzmann constant and T = temperature.

Also from the ideal gas law, PV = NkT

substituting PV into K above

K = 3PV/2 where P = pressure = 1.013 × 10⁵ N/m² and V = volume of gas = 5 litres = 5 dm³ = 5 × 10⁻³ m³

K = 3 × 1.013 × 10⁵ N/m² × 5 × 10⁻³ m³/2

= 1519.5 J

= 1.5195 kJ

≅ 1.52 kJ

Answer:

The person on Earth will have to exert more force to lift their block

Explanation:

The mass of the blocks to be lifted = 200 kg

The location of the first person = On Earth

The location of the second person = On the Moon

The force a person will have to exert to lift the block = The weight of the block = The gravitational force, F, on the block which is given as follows;

\(F = \dfrac{G \times M_1}{R^2} \times m_2\)

Where;

\(\dfrac{G \times M_1}{R^2}\)= The acceleration due to gravity on the Earth or the Moon, depending on the location of the block

m₂ = The mass of the block

Therefore, given that the acceleration due to gravity on the Earth is larger than the acceleration due to gravity on the Moon, the weight of the block on the Earth is larger than the weight of the block on the Moon, and the person on Earth have to exert more force to lift the heavier weight of the block on Earth than the person on the Moon will have to exert to lift the same block as the block has a lower weight on the Moon due to lower acceleration due to gravity on the Moon.

Radiant energy is also called responses thermal energy (b)  light energy is correct option.

Radiant energy in physics refers to the energy of electromagnetic and gravitational radiation. Radiant energy is particularly studied via radiometry. Its SI unit for energy is the joule (J). Other than radiometry, electromagnetic energy is denoted by the letters E or W. The phrase is specifically used when electromagnetic radiation is released into the environment by a source. For the human eye, this radiation might be visible or invisible.

Energy included in electromagnetic waves is known as radiant energy. These consist of microwaves, infrared, radio waves, ultraviolet light, and visible light. The random molecular movements of substances store thermal energy, often known as heat energy.

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Answer:

1.67s

Explanation:

Given parameters:

Initial velocity  =  20m/s

Acceleration  = 6m/s²

Final velocity  = 30m/s

Unknown:

Time taken  = ?

Solution:

Acceleration is the rate of change of velocity with time. It is mathematically expressed as;

 Acceleration = \(\frac{v - u }{t}\)  

v is the final velocity

u is the initial velocity

 t is the time taken

            6  =\(\frac{30 - 20}{t}\)  

            6  = \(\frac{10}{t}\)  

              10  = 6t

              t  = 1.67s

ANSWER

EXPLANATION

The voltage, E, is related to the number of windings, W, by the equation:

To find the number of windings that will produce 760 V, we have to solve for W when E is 760 V. That is:

That is the answer.

The charge the sphere should contain is:q = (4/3)πR^3 ρ = (4/3)πa^3 ρ

a) The potential at the center of the ball relative to the potential at infinity is 1/2.

b) The charge the ball should contain is 4/3πa³ρ or q = 4π/3 a³ρ.

The potential at the center of the ball relative to the potential at infinity for a solid ball of radius a and total charge q with constant charge density throughout its volume is 1.5 kq/a. The charge the ball should contain is 4/3πa³ρ or q = 4π/3 a³ρ.Here's a step-by-step explanation that can help you understand the solution better:

To calculate the potential at the center of the ball, we can use the formula for the electric potential due to a solid sphere:V = kq(3R^2-r^2)/2R^3Where V is the potential, k is the Coulomb constant, q is the total charge of the sphere, R is the radius of the sphere, and r is the distance from the center of the sphere.2. For a point at the center of the sphere, r = 0, so the formula simplifies to:Vc = kq/2R3. To calculate the potential at infinity, we can use the same formula and let r approach infinity:Vi = kq/R4. Therefore, the potential at the center relative to the potential at infinity is:Vc/Vi = (kq/2R)/(kq/R) = 1/2

The total charge of the sphere is q, and the charge density ρ is constant throughout the volume of the sphere.2. The volume of the sphere is (4/3)πR^3, where R is the radius of the sphere.3.

Therefore, the charge the sphere should contain is:q = (4/3)πR^3 ρ = (4/3)πa^3 ρ: a) The potential at the center of the ball relative to the potential at infinity is 1/2. b) The charge the ball should contain is 4/3πa³ρ or q = 4π/3 a³ρ.

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