The difference in electrical potential across a circuit element is equal to the _____ divided by charge.

A driver travels 135 km east in 1.5 h stops for 45mins for lunch and then resumes driving fir the next 2.0h through a displacement of 215 kn east.  the drivers average velocity is 82.3 km / hr.

given that :

distance travel d1 = 135 km

time taken t1 = 1.5 h

hault time t = 45 mins = 0.75 h

distance travelled d2 = 215 km

time t2 = 2.0 h

Average velocity  =  Total time taken / time

Average velocity = ( 135 km + 215 km ) / ( 1.5 h + 0.75 h + 2.0 h)

                            = 350 km / 4.25

                            = 82.3 km / hr

Thus, A driver travels 135 km east in 1.5 h stops for 45mins for lunch and then resumes driving fir the next 2.0h through a displacement of 215 kn east.  the drivers average velocity is 82.3 km / hr.

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Speed is the rate of change of distance, while velocity is the rate of change of position. Speed is a scalar quantity, which means it only has magnitude and no direction, while velocity is a vector quantity, which means it has both magnitude and direction. Therefore, all options except the first one are true. Speed can be measured in units such as meters per second (m/s).

Velocity has units of meters per second in a specific direction. This means that velocity is a vector quantity and has direction while speed is a scalar quantity and only has magnitude.

In short, speed is just a scalar representation of velocity, it tells you how fast an object is moving, but it doesn't tell you the direction of motion, whereas velocity tells you both the speed and the direction of motion.

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Answer:

\(a=12.5\ m/s^2\)

Explanation:

Given that,

The speed of the bucket tied to a rope, v = 5 m/s

The radius of the circle, r =2 m

We need to find the magnitude of the centripetal acceleration of the bucket. The formula for the centripetal acceleration is given by :

\(a=\dfrac{v^2}{r}\\\\a=\dfrac{(5)^2}{2}\\\\a=12.5\ m/s^2\)

So, the centripetal acceleration of the bucket is \(12.5\ m/s^2\).

One of the four mentioned is not a plate boundary is b. insurgent.

Plate tectonics is the theory that explains the movement of Earth's lithosphere, which is composed of large plates that glide over the mantle. The plates are separated by three types of plate boundaries: divergent, convergent, and transform. Transform boundary is where two plates slide past one another in opposite directions, either horizontally or diagonally. The San Andreas Fault is a well-known example of a transform boundary. Divergent boundaries are where two plates pull away from each other and new crust is created.

The Mid-Atlantic Ridge is an example of a divergent boundary and convergent boundary is where two plates move towards each other and one plate gets consumed or goes under the other. The Himalayas were created as a result of the collision of two convergent plates, the term insurgent is not used in plate tectonics. The correct term that describes the three main types of plate boundaries is not insurgent but instead transform, divergent, and convergent boundaries. So the correct answer is b. insurgent.

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Answer:

F' = 64 F

Explanation:

The electric force between charges is given by :

\(F=\dfrac{kq_1q_2}{r^2}\)

Where

q₁ and q₂ are charges

r is the distance between charges

When  each charge is doubled and the distance between them is 1/4 its original magnitude such that,

q₁' = 2q₁, q₂' = 2q₂ and r' = (r/4)

New force,

\(F'=\dfrac{kq_1'q_2'}{r'^2}\)

Apply new values,

\(F'=\dfrac{k\times 2q_1\times 2q_2}{(\dfrac{r}{4})^2}\\\\=\dfrac{k\times 4q_1q_2}{\dfrac{r^2}{16}}\\\\=64\times \dfrac{kq_1q_2}{r^2}\\\\=64F\)

So, the new force becomes 64 times the initial force.

Answer:

\(3.16*10^1^1\) kg

Explanation:

According to Newton's Law of Universal Gravitation:

\(F=G\frac{m_1m_2}{r^2}\\F=0.0996381755N\\G=6.674*10^-^1^1\frac{Nm^2}{kg^2}\\m_2=42.90kg\\r=95.32m\)

Rewriting to solve for \(m_1\):

\(m_1=\frac{F(r)^2}{G(m_2)}\\m_1=\frac{(0.0996381755N)(95.32m)^2}{(6.674*10^-11\frac{Nm^2}{kg^2})(42.90kg)}\\m_1=3.16*10^1^1kg\)

I believe this is the answer based on the given values, but it is not a logical answer.  Is it possible one or more of the values in the question were entered incorrectly?

The dimension of concentration is shared by the equivalent formulas for equilibrium constants in thermodynamic and kinetic systems, although K, the thermodynamic equilibrium constant, is always dimensionless.

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The flux of the curl of the field F across the given surface S is 108π. To calculate the flux of the curl of the field F across the surface S using Stokes' Theorem, we need to evaluate the surface integral ∬S curl(F) · dS, where curl(F) is the curl of the field F and dS is the outward-pointing vector normal to the surface.

First, we find the curl of the field F:

curl(F) = (curl(F))_x i + (curl(F))_y j + (curl(F))_z k

= (0 - 1) i + (1 - 0) j + (3 - 2) k

= -i + j + k

Next, we parameterize the surface S using the given equation r(r, θ):

r(r, θ) = rcosθ i + rsinθ j + (9 - r^2) k

We calculate the cross product of the partial derivatives of r(r, θ) with respect to r and θ to obtain the normal vector to the surface S:

dS = (∂r/∂r) × (∂r/∂θ) dr dθ

= (cosθ i + sinθ j - 2r k) dr dθ

Now, we evaluate the surface integral:

∬S curl(F) · dS = ∫∫ curl(F) · dS

= ∫∫ (-i + j + k) · (cosθ i + sinθ j - 2r k) dr dθ

= ∫∫ (-cosθ + sinθ - 2r) dr dθ

Integrating with respect to r from 0 to 3 and with respect to θ from 0 to 2π, we obtain:

∫∫ (-cosθ + sinθ - 2r) dr dθ = 108π

Therefore, the flux of the curl of the field F across the surface S is 108π.

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Answer:

wrong answer because m=100

Explanation:

I think it is incorrect

Ah, I tried

After travelling 2.0 m up the inclined plane, the block's speed is roughly 11.6 m/s.

Assuming that there is no friction, we can use the conservation of energy principle to solve this problem.

The initial kinetic energy of the block is given by:

K₁ = (1/2) * m * v₁²

where m is the mass of the block, v₁ is the initial speed, and K₁ is the initial kinetic energy.

The final kinetic energy of the block after it has traveled a distance of 2.0 m up the incline is given by:

K₂ = (1/2) * m * v₂²

where v₂ is the final speed and K₂ is the final kinetic energy.

The potential energy gained by the block due to its increase in height is given by:

U = m * g * h

where g is the acceleration due to gravity and h is the height gained by the block.

Since energy is conserved, the initial kinetic energy plus the gained potential energy must equal the final kinetic energy:

K₁ + U = K₂

Substituting the expressions for K₁, K₂, and U, we get:

(1/2) * m * v₁² + m * g * h = (1/2) * m * v₂²

Simplifying and solving for v2, we get:

v₂ = √(v₁² + 2gh)

where h is the height gained by the block, which is equal to:

h = d * sin(θ)

where d is the distance traveled along the incline and θ is the angle of the incline.

Substituting the given values, we have:

v₁ = 9.0 m/s

θ = 38°

d = 2.0 m

g = 9.81 m/s²

So, h = 2.0 m * sin(38°) ≈ 1.22 m

Substituting these values into the equation for v₂, we get:

v₂ = √((9.0 m/s)² + 2 * 9.81 m/s² * 1.22 m) ≈ 11.6 m/s

Therefore, the block's speed after it has traveled 2.0 m up the inclined plane is approximately 11.6 m/s.

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Given the angular velocity α = f t and the initial conditions θ(0) = ω(0) = 0, the angle θ of the rotating rigid body at a given time t is given by θ(t) = 1/2 * f * t^2.

A rotating rigid body is an object that rotates about an axis with a constant angular velocity. If the angular velocity is a function of time, then the position of the body can be described by the angle it has rotated through at a given time. In this question, the angular velocity of the rotating rigid body is given by α = f t, where f > 0 is a constant.

Detailed Explanation:

The angular velocity α is the rate of change of the angle θ with respect to time. If we differentiate the equation α = f t with respect to time, we get dα/dt = f. Integrating both sides with respect to time, we get:

θ = 1/2 * f * t^2 + C

where C is an arbitrary constant of integration. Since θ(0) = 0 and ω(0) = 0, we can use these initial conditions to solve for C:

θ(0) = 1/2 * f * 0^2 + C = 0

C = 0

So, the equation for the angle θ becomes:

θ(t) = 1/2 * f * t^2

This equation represents the angle θ as a function of time, and shows that the angle is directly proportional to the square of the time elapsed.

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Impulse on a scooter of 5502 kg m/s.

The change in momentum of the object is equal to the impulse it experiences. F • t = m • v is an equation. When two objects collide, they both experience an impulse, which both causes and is equal to the change in momentum.

The impulse of force is defined as the product of average force and time of application. by means of Newton's second law. If the mass is constant, the impulse of force may be calculated and found to be equal to the change in momentum of an object.

Δ p = F net Δ t

The equation given by F net , F net t is known as the impulse.

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Answer:

Hertz is the answer for this question

Light travels as a wave and hits like a particle.

Inside the physical sciences, a particle is a small localized object to which may be ascribed numerous bodily or chemical houses, along with extent, density, or mass.

In the course of chemical adjustments, debris do exchange with atoms or ions regrouping. Bonds hyperlinks between atoms damage and new ones' shape and energy is either given out or taken in. some chemical changes are initiated with the aid of mixing.

A particle is an exceedingly tiny piece of rely, and scientists trust that the whole thing in the universe is made from particles. debris can range in length, from large subatomic particles, like electrons, or an awful lot smaller microscopic particles like atoms or molecules.

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Answer:

The new volume of the \( NH_{3}\) sample is 3.27mL.

Explanation:

Given the following data;

Original Volume, V1 = 2.50-mL

Original Temperature, T1 = 325K

New Temperature, T2 = 425K

To find new volume V2, we would use Charles' law.

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles is given by;

\( VT = K\)

\( \frac{V1}{T1} = \frac{V2}{T2}\)

Making V2 as the subject formula, we have;

\( V_{2}= \frac{V1}{T1} * T_{2}\)

\( V_{2}= \frac{2.50}{325} * 425\)

\( V_{2}= 0.0077 * 425\)

V2 = 3.27mL

Therefore, new volume of the \( NH_{3}\) sample is 3.27mL.

Answer:

3.33A

Explanation:

total resistors in series circuit (4.0+2.0) = 6.0

following ohms law. V = IR, then I = V/R; but the supply voltage given equals =20,

therefore, 20/6 = 3.33A,

Answer:

Ohms

Explanation:

Ω this is the symbol

The space shuttle travels approximately 0.00794 football fields in one blink of an astronaut's eye.

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Answer:

No, it does not violate Newton's first law

Explanation:

Newton's first law of motion states that, "A body will continue in its state of rest or uniform motion in a straight unless acted up by a force to make it act otherwise" This means a force is required to initiate movement and also required to halt it.

For a skate positioned to roll down a bank, Here, the force of gravity acting on the skate acting downward will make the skate roll without having to push off the skate with a foot. Because the position of the skate doesn't balance the Gravitational force acting on it. Hence. The Gravitational force is enough to set the skate in motion.

The maximum value the string tension can have before the can slips is 5.2 N (Newtons).the maximum value the string tension can have before the can slips is equal to the maximum static friction force. This force can be calculated using the equation mentioned above, considering the coefficient of static friction and the normal force. The units for the maximum static friction force will depend on the units used for mass and acceleration due to gravity.

The maximum value the string tension \((\(T\))\) can have before the can slips can be determined using the concept of static friction. The coefficient of static friction between the can and the ground is given as 0.52.

The maximum static friction force\((\(f_{\text{static}}\))\) between the can and the ground can be calculated by multiplying the coefficient of static friction \((\(\mu_{\text{static}}\))\) by the normal force\((\(N\))\) acting on the can.

The normal force is equal to the weight of the can \((\(mg\)),\) which can be calculated by multiplying the mass of the can \((\(m\))\) by the acceleration due to gravity \((\(g\),\) approximately 9.8 \(m/s^2)\).

Once we have the maximum static friction force, we can equate it to the tension in the string. The tension in the string is the force that is applied horizontally to prevent the can from slipping.

Therefore, the maximum value of string tension can be found by multiplying the coefficient of static friction by the weight of the can:

\(\[f_{\text{static}} = \mu_{\text{static}} \cdot N\]\[T_{\text{max}} = \mu_{\text{static}} \cdot mg\]\)

For example, if the weight of the can is 10 N, then the maximum string tension would be\(\(0.52 \cdot 10 \, \text{N} = 5.2 \, \text{N}\).\)

So, the maximum value the string tension can have before the can slips is 5.2 N (Newtons).

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Answer:

C. A person rubs a shoe on a rug, causing extra electrons to be transferred to the shoe

Explanation:

I just took the test

Answer:

C. A person rubs a shoe on a rug, causing extra electrons to be transferred to the shoe.

Explanation:

a pe x

Answer:

Explanation:

The Sun emits waves called "Solar Waves", which have a wavelengths between 160 and 400 nanometers. According to the electromagnetic spectrum, these waves are defined as Ultraviolet, which have a frequency around the order of \(10^{16}\), which is really intense and high energy.

Therefore, the answer is Ultraviolet Waves.

A photon is emitted when an electron moves from the 3p level to the 2s level in an atom.

When the electron changes levels, its energy decreases and the atom emits a photon. A photon is emitted while an electron moves from a higher energy level to a lower energy level. A photon has exactly the same energy that an electron loses when moving to a lower energy level. When an electron jumps from a low energy orbital to a high energy orbital, it absorbs energy and transitions from the low energy orbital to the high energy orbital. A photon is emitted when an electron moves from the 3p level to the 2s level in an atom.

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The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Answer:

electric current=ampere(A)

force=Newton (N)

area=metres square(m^2)

power=watt(w)

density=kg/m3 

amount of substance =mole per cubic meter (mol/m3).

volume=cubic meter (m3),

Answer:

thanks for brainlist brother.........

Explanation:

Mass =150g = 0.15kg

Volume= 35cm^3 = 0.35m^3

Density= Mass×Volume

= 0.15kg × 0.35m^3

= 0.05 kg m^3

\(\huge\fbox\orange{A} \huge\fbox\red{N}\huge\fbox\blue{S}\huge\fbox\green{W}\huge\fbox\gray{E}\huge\fbox\purple{R}\)

\(\huge\underline\mathtt\colorbox{cyan}{For Positively Charged:}\)

By gaining electrons from the ground, the object will have a balance of charge and therefore be neutral. Grounding is the grounding of a positively charged object and involves the transfer of electrons from the ground into the object.

\(\huge\underline\mathtt\colorbox{red}{For Negatively Charged:}\)

If it is to have its charge removed, then it will have to lose its excess electrons. Once the excess electrons are removed from the object, there will be equal numbers of protons and electrons within the object and it will have a balance of charge.