When will you say a body is in a) uniform acceleration (b) non uniform acceleration

The energy is transferred when the potential difference is 12 volts and the charge is 7.5 C is 90 Joules.

In physics, energy is the capacity to carry out work. It might be potential, kinetic, thermal, electrical, chemical, radioactive, etc., among other types. Heat and work are other examples of energy being transferred from one body to another. Once it has been transmitted, energy is always allotted according to its nature. As a result, heat transmission could result in thermal energy while effort could provide mechanical energy.

Given the information in the question:

The potential difference, V = 12 Volts,

The charge, q = 7.5 C,

Calculate the energy, E by the formula given below,

E = \(VQ\)

Substitute the values of charge and potential difference,

E = \(12*7.5\)

E = \(90 Joules\)

Therefore, the energy is transferred when the potential difference is 12 volts and the charge is 7.5 C is 90 Joules.

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In order to prevent overloading of any circuit, dual rail electrical supply includes independent tracks and P C B traces that are used to offset voltage sags between various circuits.

Using conductive paths, tracks, or signal traces etched from copper sheets laminated onto a non-conductive substrate, a printed circuit board, or PCB, is used to mechanically support and electrically link electronic components.

Semiconductors are used by practically all inverters to generate a controlled power output. An input voltage is rectified if the source has an ac input.

It is, therefore, the proper response.

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The resistance of each bulb which are connected in series is 20.571 Ω.

Let's find the resistance of each bulb using the given terms:

1. Voltage of source (V_source) = 120 V
2. Number of bulbs (n) = 10
3. Power of each bulb (P) = 7.0 W

We'll use the formula P = V²/R to find the resistance of each bulb.

1: Find the total power of the series.
Total power (P_total) = n * P = 10 * 7.0 W = 70 W

2: Find the total resistance of the series.
Using the formula P_total = V_source^2 / R_total, we can find R_total:
R_total = V_source² / P_total = (120 V)² / 70 W = 14400 / 70 = 205.71 Ω

3: Find the resistance of each bulb.

Since the bulbs are connected in series, the total resistance is the sum of the individual resistances. Therefore, we can find the resistance of each bulb (R_bulb) as follows:

R_bulb = R_total / n = 205.71 Ω / 10 = 20.571 Ω

So, the resistance of each bulb is approximately 20.571 Ω.

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Answer:

A

Explanation:

A) Force of gravity is 20 N       Yes -   Force is measured in N

B) No.....mass is generaly measured in KG or sub units of it

C) No ... meters is a measure of distance not force

D) No   acceleration is  m/s^2

If the object is moving with a constant velocity (uniform motion), you can use the equation: Distance = Velocity x Time.

To compute the time squared from the distance and time of an object's movement, you must first obtain two data points (distance and time).

The equations of motion and the idea of average velocity are used in the formula for computing time squared.

Let's assume you have two data points:

Initial time, t₁ (in seconds)

Final time, t₂ (in seconds)

Distance traveled by the object, d (in meters)

The average velocity (v_avg):

v_avg = d / (t₂ - t₁)

t₂ - t₁ = d / v_avg

Now, square both sides of the equation:

(t₂ - t₁)² = (d / v_avg)²

Finally, isolate t₁²:

t₁² = (d / v_avg)² - t₂²

Thus, this way, one can calculate the time squared from that.

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Answer:

it is correct

Explanation:

Though no rounded numbers can be defined as accurate, if we were going by people's discovery, and research, we can define that the number, g = 9.8m/s^2, is accurate

Explanation:

v²= u² + 2as

v= final velocity.

u= initial velocity.

a= acceleration.

s= distance.

The annual cost for electricity to power a lamppost for 7.00 h per day with a 100 W incandescent light bulb versus an energy efficient 25 W fluorescent bulb is $25.55 and $6.3875 respectively.

The Power is the amount of Energy produced per unit time.

The general formula for the annual cost can be written as:

\(Cost = P\cdot t\cdot d\)

where. P is power, t is time in hours per day, and d is the total days.

Using the formula:

The cost of a 100 W incandescent light bulb:

\(Cost=(0.1)(7)(365)(0.10)=\$25.5\)

Similarly,

The cost of a 25 W fluorescent light bulb:

\(Cost=(0.025)(7)(365)(0.10)=\$6.3875\)

Hence, the annual cost is $25.55 and $6.3875 respectively.

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Answer:

I believe it is D

Explanation:

This principle can be observed in other everyday scenarios, such as jumping on a trampoline or the recoil of a gun after firing.  Newton's Third Law of Motion is a fundamental principle in classical mechanics and explains why the spring will bounce when the weight is released.

The bouncing of the weight when released is explained by Newton's Third Law of Motion, which states that for every action there is an equal and opposite reaction. When the weight is released, the spring exerts an equal and opposite force on the weight, propelling it upwards and causing it to bounce. This is because when the weight is pulled down, it compresses the spring, storing potential energy. When the weight is released, the spring decompresses and the potential energy is released, propelling the weight in the opposite direction.

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The correct matching of the terms is as follows:

The correct matching to the given terms depends on the definition of the terms.

The correct matching of the terms is as follows:

In conclusion, respiratory function is measured by means of aerobic capacity.

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According to the harmonic oscillator model, the vibrational frequency of a molecule is proportional to the square root of the force constant (k) divided by the reduced mass of the molecule (μ). The reduced mass is given by the formulaμ = m1m2/(m1 + m2), where m1 and m2 are the masses of the two atoms. Therefore, the vibrational frequency of a molecule containing different isotopes will depend on the masses of the isotopes used.In the given problem, the fundamental vibrational frequency of (12)C(16)O is given as 2170/cm. Therefore, we can calculate the force constant of this molecule using the formulaν = 1/(2πc)×(k/μ)^(1/2),where ν is the vibrational frequency, c is the speed of light, k is the force constant, and μ is the reduced mass of the molecule.(12)C(16)O:

Now, we need to calculate the vibrational frequency of (12)C(18)O. Using the same formula as above,(12)C(18)O:

TheVibrational frequency is the number of vibrations that occur in one second or the number of waves/electric vibrations generated per second. According to the Practical Learning Physics book, it is explained that frequency is the quantity and amount of vibrations that are able to produce in one second time interval.

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Answer:

We will have that the picture that shows the highest average kinetic energy is image B.

Answer:

true

Explanation:

they have a reflecting surface that is recessed inward

Answer:

Joules

Explanation:

The unit for Energy is Joules, which is equal to kg m²/s².

The gravitational potential energy is calculated as:

Where m is mass (kg), g is gravity (m/s²) and h is the height (m). So, the unit of the potential energy is:

Therefore, the answer is joules.

Answer:

I think the answer is a because boiling water cleans it

Boiling the water away, leaving the substance behind in the beaker is the way to separate the mixture. The correct option is A.

A mixture is basically a substances comprised of two or many distinct chemical substances which are indeed not linked covalently.

A mixture is the usually physical combination of two or more substances that retain their identities as well as are mixed in the way to form solutions, suspensions, along with colloids.

When two or more distinct substances are physically combined, a mixture is formed that can be distinguished back into its original substances.

When two or more substances combine to form a new substance that cannot be separated back into its original substances, a chemical reaction occurs.

The mixture can be separated by boiling the water away and leaving the substance in the beaker.

Thus, the correct option is A.

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Answer

Its because of the atmospheric pressure that may crush the humans

Explanation:

Answer:

The standard acceleration due to gravity (or standard acceleration of free fall), sometimes abbreviated as standard gravity, usually denoted by ɡ0 or ɡn, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as 9.80665 m/s2 (about 32.17405 ft/s2).

Explanation:

Answer:

9.80665 m/s^2

Explanation:

This is the value on Earth.

The resulting input matrix will be a 3x3 matrix that Caleb needs to enter into his telescope to move it into the desired position.

To move the telescope to face the southwest and point upwards into the sky at an angle of 60 degrees, we need to find the input matrix that will rotate the initial vector (1, 0, 0) to the desired direction.

Let's break down the problem step by step:

First, we need to rotate the initial vector in the xy-plane to face the southwest direction. Since the telescope can rotate 360 degrees on the xy-plane, we can achieve this rotation by an angle of 45 degrees.

Next, we need to rotate the resulting vector from step 1 upwards into the sky at an angle of 60 degrees. This rotation will be in the xz-plane.

To obtain the input matrix for these rotations, we can multiply two rotation matrices:

R_xy = rotation matrix for the xy-plane rotation (45 degrees)

R_xz = rotation matrix for the xz-plane rotation (60 degrees)

The resulting input matrix will be the product of R_xy and R_xz.

Let's calculate the input matrix:

import numpy as np

# Convert angles to radians

theta_xy = np.radians(45)  # Rotation angle for xy-plane

theta_xz = np.radians(60)  # Rotation angle for xz-plane

# Rotation matrices

R_xy = np.array([[np.cos(theta_xy), -np.sin(theta_xy), 0],

                [np.sin(theta_xy), np.cos(theta_xy), 0],

                [0, 0, 1]])

R_xz = np.array([[1, 0, 0],

                [0, np.cos(theta_xz), -np.sin(theta_xz)],

                [0, np.sin(theta_xz), np.cos(theta_xz)]])

# Calculate the input matrix

input_matrix = np.matmul(R_xy, R_xz)

print("Input_matrix for Caleb's telescope:")

print(input_matrix)

The resulting input matrix will be a 3x3 matrix that Caleb needs to enter into his telescope to move it into the desired position.

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Answer:

I will answer in English, and i will give some representation for each case:

We have a = 6m and b = 8m.

If they are perpendicular, we have that:

a = (6m, 0) b = (0, 8m)

The adition is:

a + b = (6m, 8m).

If they are parallel, we have;

a = (6m, 0)

b = (8m, 0)

a + b = (6m + 8m, 0) = (14m, 0 )

If they are parallel but opposite:

a = (6m, 0)

b = (-8m, 0)

a + b = (6m - 8m,0) = (-2m, 0)

Answer:

The lifting force of a balloon is equal to the weight of the air it displaces, minus the weight of the balloon itself and any cargo it is carrying. We can calculate the lifting force using the following formula:

Lifting force = (4/3) x π x r^3 x ρair x g - m_balloon - m_cargo

where:

- r is the radius of the balloon (in meters)

- ρair is the density of air (in kg/m^3), which we'll assume is 1.2 kg/m^3 at sea level and standard temperature

- g is the acceleration due to gravity (in m/s^2), which we'll assume is 9.81 m/s^2

- m_balloon is the mass of the balloon (in kg)

- m_cargo is the mass of the cargo (in kg)

- π is pi (approximately 3.14)

Substituting in the values given in the problem, we get:

Lifting force = (4/3) x π x (7.15 m)^3 x (1.2 kg/m^3) x 9.81 m/s^2 - 930 kg - m_cargo

Simplifying and solving for m_cargo, we get:

m_cargo = (4/3) x π x (7.15 m)^3 x (1.2 kg/m^3) x 9.81 m/s^2 - 930 kg - Lifting force

Plugging in the lifting force we want the balloon to have, which we'll call L, we get:

m_cargo = (4/3) x π x (7.15 m)^3 x (1.2 kg/m^3) x 9.81 m/s^2 - 930 kg - L

Assuming we want the balloon to lift 5000 kg of cargo, we can solve for L:

L = (4/3) x π x (7.15 m)^3 x (1.2 kg/m^3) x 9.81 m/s^2 - 930 kg - 5000 kg

L = 281,581 N

Therefore, to lift 5000 kg of cargo, the balloon needs to have a lifting force of approximately 281,581 N.

The human life valuation based on the information is E. $500000 or more.

It was illustrated that the motorcycle riders to wear helmets reduces the probability of a motorcycle fatality from 0.3 percent to 0.2 percent over the lifetime of a motorcycle rider.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true.

Since the cost of a lifetime supply of helmets is $500, the lifetime human life = = 500 / (0.3 - 0.2) × 100

= 500 / 0.1 × 100

= 5000 × 100

= 500000

The correct option is E.

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Complete question

Suppose that requiring motorcycle riders to wear helmets reduces the probability of a motorcycle fatality from 0.3 percent to 0.2 percent over the lifetime of a motorcycle rider and that the cost of a lifetime supply of helmets is $500. it is efficient for the government to require riders to wear helmets if human life is valued at:

A. $100 or more.

B. $150 or more

C. $500 or more.

D. $50000 or more.

E. $500000 or more.

The compound that exhibits dipole-dipole forces as its strongest attraction between molecules is (e) HBr (hydrogen bromide)

In HBr, there is a significant electronegativity difference between hydrogen (H) and bromine (Br). As a result, a polar covalent bond is formed, with bromine being more electronegative and attracting electrons towards itself.

This creates a partial positive charge on the hydrogen atom and a partial negative charge on the bromine atom. These partial charges give rise to dipole-dipole forces, which are the strongest intermolecular attractions in HBr.

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Answer:

professional communication style is expected to be formal while the casual is informal.

Explanation:

Electrostatic precipitators use electrical charges to attract and trap pollutants, such as dust particles, sulfur dioxide, and smoke particles.

This technology works by using high voltage to ionize the pollutant particles, which changes their electrical charge and results in an attractive electrical force that is directed to metal plates or tubes, known as collectors.

Once the particles reach the collector, they build up and can be removed from the air. This technology is usually used to control emissions of particles that are too small to be blocked by traditional mechanical filters, such as those found in large power plants and fossil fuel facilities.

Because electrostatic precipitators are so efficient and powerful, they are now frequently used in many industries where air pollution control is needed. With proper maintenance and upkeep, this technology can be very effective in reducing air pollution, and keeping the surrounding air clean.

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The position where the 49.0-kg object can be placed so as to experience a net force of zero from the other two objects is 1.32 m from the 400 kg mass toward the 100 kg mass.

(a) The formula for the gravitational force between two objects is given by:

F = Gm₁m₂ / r²where G is the gravitational constant, m₁ and m₂ are the masses of the objects, and r is the distance between them.

Using this formula, the magnitude of the gravitational force between the 100 kg and 49 kg object is:

F₁ = G(100 kg)(49 kg) / (2.20 m)²

   = (6.67 × 10⁻¹¹ N m²/kg²)(4900 kg²) / (4.84 m²)

   = 6.77 × 10⁻⁹ N

The magnitude of the gravitational force between the 400 kg and 49 kg object is:

F₂ = G(400 kg)(49 kg) / (2.20 m)²

   = (6.67 × 10⁻¹¹ N m²/kg²)(19600 kg²) / (4.84 m²)

   = 2.71 × 10⁻⁸ N

The net gravitational force exerted by these objects on the 49.0-kg object placed midway between them is the sum of these two forces:

Fnet = F₁ + F₂= (6.77 × 10⁻⁹ N) + (2.71 × 10⁻⁸ N)= 3.39 × 10⁻⁸ N

(b) To experience a net force of zero from the other two objects, the gravitational force exerted on the 49.0-kg object by the 100-kg object must be equal in magnitude and opposite in direction to the gravitational force exerted on the 49.0-kg object by the 400-kg object.

Using the formula for gravitational force, we can set up the following equation:

(6.67 × 10⁻¹¹ N m²/kg²)(100 kg)(49 kg) / (x + 4.4 m)² = (6.67 × 10⁻¹¹ N m²/kg²)(400 kg)(49 kg) / (x)²

Simplifying and solving for x gives: x = 1.32 m from the 400 kg mass toward the 100 kg mass

Thus, the position where the 49.0-kg object can be placed so as to experience a net force of zero from the other two objects is 1.32 m from the 400 kg mass toward the 100 kg mass.

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Answer:

C.

Every person has a raw, magnetic energy.

Explanation:

Yes, I can confirm this is correct, I got 100% on the quiz edge 2020

have a great day !

The concept of "magnetism animal" implied  that every person has a raw, magnetic energy. Hence option C is correct.

Magnetic energy is defined as the shifting of the electrons' charge in various particles. Magnetism is the force that magnets employ to either attract or repel one another. Electric charges in motion are what generate magnetism.

Supposedly invisible or mysterious energy known as "animal magnetism" is claimed to affect people. Franz Mesmer, a German physician, used the term "animal magnetism," also known as mesmerism, to describe what he believed to be an innate natural power that all living things, including people, animals, and plants, had.

Thus, the concept of "magnetism animal" implied  that every person has a raw, magnetic energy. Hence option C is correct.  

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