two uncharged metal spheres, spaced 10.0 cmcm apart, have a capacitance of 28.0 pfpf . part a how much work would it take to move 16.0 ncnc of charge from one sphere to the other?

So the best way to show this is with a diagram

As shown here, the sun's light is blocked by the moon. This prevents the Earth from getting the sun's light

So the correct answer is A

Answer:

The answer is A: Light from the sun is blocked from earths surface by the moon

Explanation:

hope this helps

If the supply voltage had fallen to 200V, it would take 5.5 minutes for water in an electric kettle to reach its boiling point.

Let the time taken when the supply voltage is 220V be t₁. Therefore, t₁ = 5 mins

The power of the kettle is given by P₁ = V₁I where V₁ is the voltage, I is the current.

Potential difference V is inversely proportional to the current I.

P₁ = V₁I => I = P₁/V₁

Therefore, when the voltage is reduced to 200V, the current will beI = P₁/V₂ where V₂ is the new voltage.

Now let the time taken for water to reach boiling point when voltage is 200V be t₂.

Then V₁I₁t₁ = V₂I₂t₂

But we have I₁ = I₂

So, V₁t₁ = V₂t₂t₂

= (V₁/ V₂) * t₁t2

= (220/200) * 5t₂

= 5.5 mins

Therefore, if the supply voltage had fallen to 200V, it would take 5.5 minutes for water in an electric kettle to reach its boiling point.

To know more about supply voltage, refer

https://brainly.com/question/32484340

#SPJ11

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: 1500 Joules

Explanation: To calculate the work done by the weight lifter, we can use the formula:

Work = Force x Distance x cos(theta)

where "Force" is the force applied by the weight lifter, "Distance" is the vertical distance that the weight is lifted, and "theta" is the angle between the direction of the force and the direction of the displacement.

In this case, the force applied by the weight lifter is 1000N and the vertical distance lifted is 1.5m. Since the force is applied vertically upwards and the displacement is also vertical, the angle between the direction of the force and the direction of the displacement is 0 degrees (cos(0) = 1).

Therefore, the work done by the weight lifter is:

Work = 1000N x 1.5m x cos(0) = 1500 Joules

So the work done by the weight lifter on the weights is 1500 Joules.

Answer:

H = 0.06 kWh

Explanation:

Given that,

Power of an electric lamp, P = 60 W

Voltage, V = 240 V

It is operated for 1 hour

We need to find the heat generated by the lamp. Heat generated is given by :

\(H=P\times t\\\\H=60\ W\times 1\ h\\\\H=60\ Wh\\\\H=0.06\ kWh\)

So, 0.06 kWh of the heat is generated by the lamp.

Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

Answer:

Cause life

Explanation:

Cause life

Electric Current:

Electric current is the flow of charge through a given circuit per unit time. Electric current is one of the components needed to calculate the electric power that a device needs to operate and do work. Electric current is measured in amperes (A), which is equal to:

            1A = 1 C/ s

Recall that the coulomb (C) is the unit for charge while the second (s) is the unit for time

Given: I = 3.5

A is the current

Δt =30 s is the time interval

                     A =ΔQ/ΔT

Net charge = 100C

Electricity is produced when an electric current runs through a circuit.

How does electric current work?

A current of electricity is a steady flow of electrons. When electrons move from one place to another, round a circuit, they carry electrical energy from place to place like marching ants carrying leaves. Instead of carrying leaves, electrons carry a tiny amount of electric charge.

Learn more about Electric current :

brainly.com/question/27003377

#SPJ4

Answer:

The answer is B

Explanation:

because,choose A is the newton's second law

and C is newton's third law so the answer is B

Newton's first law describes: how inertia affects the motion of an object. Option (B) is correct.

According to Newton's first law of motion, an external force must be applied in order for an object to begin moving, stop moving, or change direction. Inertia is the ability of large entities to resist changes in their state of motion. The law of inertia is another name for the first law of motion.

According to Newton's First Law, a body in uniform motion or at rest will remain in that state up to and unless a net external force acts on it.

The key idea here is that an object will maintain a constant velocity if there is no net force produced by unbalanced forces operating on it. The item remains at rest if that velocity is 0. In addition, the velocity will change as a result of any extra external forces that are applied.

Learn more about  Newton's first law here:

https://brainly.com/question/29775827

#SPJ2

The magnitude of the torque about the bolt due to the worker and the weight of the beam is 13,798.4 Nm

The length of the steel = \(r_{2}\) = 4.4 m

The mass of the steel= \(m_{1}\) = 500 kg

The mass of the worker = \(m_{2}\) = 70 kg

Let , the total torque = \(\tau_{t}\)

The centre of gravity = \(r_{1}\)

                                   =4.4/2

                                   = 2.2

\(\tau_{t} = \tau_{1} +\tau_{2}\\\\\tau_{t} = F_{1}r_{1} + F_{2}r_{2} \\\\\text{We know that},F = mg \\\\\tau_{t} = m_{1}gr_{1} + m_{2}gr_{2}\\\\\tau_{t} = (500* 9.8* 2.2) +(70*9.8* 4.4)\\\\\tau_{t} = 13,798.4 Nm\)

The magnitude of the torque about the bolt due to the worker and the weight of the beam is 13,798.4 Nm.

The complete question is:

A 4.40-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 70 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the bolt due to the worker and the weight of the beam?

To learn more about torque, refer:

https://brainly.com/question/17512177

#SPJ4

The correct answer is approximately 3.207 V. To find the potential difference between two points 100 m apart in a 1.0 mm diameter copper wire with resistivity 1.68 x 10^-8 Ωm carrying a current of 15 A, follow these steps:

1. Calculate the wire's cross-sectional area (A) using the diameter (d=0.001 m):
A = π(d/2)^2 = π(0.0005)^2 ≈ 7.854 x 10^-7 m².

2. Determine the wire's resistance (R) using resistivity (ρ=1.68 x 10^-8 Ωm), length (L=100 m), and cross-sectional area (A):
R = ρ(L/A) = (1.68 x 10^-8)(100/7.854 x 10^-7) ≈ 0.2138 Ω.

3. Find the potential difference (V) using Ohm's Law (V=IR) with current (I=15 A) and resistance (R):
V = 15 x 0.2138 ≈ 3.207 V.

None of the given options (12V, 23V, 32V, 41V) match the calculated potential difference. The correct answer is approximately 3.207 V.

To know more about copper wire refer here:

https://brainly.com/question/17965702#

#SPJ11

Answer:

Explanation:

In this problem we are required to find the potential energy possessed by the television

Given data

mass of television m = 15 kg

height  added above the ground, h= 1-0.3 = 0.7 m

acceleration due to gravity g = 9.81 m/s^2

apply the formula for potential energy we have

P.E= m*g*h

P.E = 15*9.81*0.7 = 103 Joules

Answer:

yes makes sense

Explanation:

Answer:

True

Explanation:

idk

a single digit 10.5 kJ Justification: To just be able to resolve this issue.

Evaporation (gas phase water) at ambient temperature and first atmosphere of pressure is the most typical example of a vapor. A vapor should not be confused with a mist, which is a fine dispersion of liquid droplets, or a dust, which is a fine dispersion of solid particles. Gas is a suitable substitute for the word vapor.

When a substance's gas and liquid forms are in equilibrium, as happens, for instance, whenever the temperature is sufficiently low enough for the substance to exist in either gaseous or liquid form, the state is referred to as a vapor.

To know more about Vapot visit:

https://brainly.com/question/14578189

#SPJ4

Answer:

the answer is b i think

Answer:Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.

Explanation:

The phenotype is the trait those genes express. ... Looking at the possible offspring, each box (or possible offspring) has two copies of the dominant gene. This means there is a 100% chance of the offspring having brown eyes, or being BB. It's important to note here that each box represents a possible offspring.

Explanation:

Write what you know

F = ma

m = 30kg

a = 3

Plug and chug

fun fact:numbers that are exponents are called superscripts

Answer:

B

Explanation:

Basta B isagot Mona Tama yan

Answer:

v = 11061.02 km/h

Explanation:

Given that,

The radius of the circular orbit, r = 42250 km

Time taken to revolve around the Earth, t = 24 hours

We need to find the speed of the satellite. We know that, speed of an object is equal to total distance traveled divided by the time taken. So,

\(v=\dfrac{2\pi r}{T}\)

Put all the values,

\(v=\dfrac{2\pi \times 42250}{24}\\\\v=11061.02\ km/h\)

So, the speed of the satellite is equal to 11061.02 km/h.

The magnitude and direction of the force that the magnetic field of the current exerts on the electron in a a long, straight wire is 1.96 x 10⁻¹⁸ N and direction of the force is opposite to the direction of the current.

The magnetic field of the current exerts a force on the electron of magnitude 6.072 x 10⁻¹³ N in a direction that is opposite to the direction of the current.

where

Current, I = 8.60 A

Distance of electron from wire, r = 4.50 cm = 0.045 m

Velocity of electron, v = 6.00 x 10^4 m/s

The force on the electron due to magnetic field of current-carrying wire is given by:

F = (μ * I * q) / (2 * π * r)

where μ is the magnetic permeability of free space and is equal to 4π x 10⁻⁷ Tm/A,

q is the charge of electron and is equal to -1.6 x 10⁻¹⁹ C, and

r is the distance between the electron and the wire.

Substituting the values, we get:

F = (4π x 10⁻⁷ Tm/A) * (8.60 A) * (-1.6 x 10⁻¹⁹ C) / (2 * π * 0.045 m)

F = -1.96 x 10⁻¹⁸ N.

The negative sign indicates that the direction of force is opposite to the direction of the current.

So, the magnitude of the force exerted by the magnetic field on the electron is 1.96 x 10⁻¹⁸ N, and the direction of the force is opposite to the direction of the current.

To practice more questions about the 'magnetic field':

https://brainly.com/question/26257705

#SPJ11

Answer:

4.3 x 10^16 kg

Explanation:

M = rv^2/G =[90,000 x 5.66^2] / [6.67 x 10^-11]

M = 43,226,446,776,611,694 = 4.3 x 10^16 kg - Ida's mass.

Answer:

Explanation:

the person on top of me was correct 4.3 10^16 i have it in my notes from when i was in school :) so they are right

Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

To know more about acceleration refer here:

https://brainly.com/question/30660316#

#SPJ11

Answer:

when u find out pls lmk! i have the same question and I've been stuck for a while lol

Answer:

B

Explanation:

First, find the distance traveled by the car in miles. If a particle travels at speed v during a time t, the distance d traveled during that time is:

Replace v=58.5mi/h and t=1.97h to find the distance traveled in miles:

One mile is approximately 1609 meters. Convert 115.245 miles to meters:

Therefore, the distance traveled in meters is approximately 185,000.

Bobby has the greater magnitude of linear velocity. Therefore option B is correct.

To determine which child moves with a greater magnitude of linear velocity, we need to consider their positions and the angular speed of the merry-go-round.

Let's assume that Ana is riding at point A, which is closer to the center of rotation, and Bobby is riding at point B, which is farther from the center.

The linear velocity of an object in a circular motion can be calculated using the formula:

\(\[ v = r \cdot \omega \]\)

where v represents linear velocity, r represents the distance from the center of rotation, and \(\( \omega \)\) represents the angular speed.

Since both children are on the same merry-go-round, the angular speed \(\( \omega \)\) is the same for both of them.

However, the distance from the center of rotation, represented by r, is greater for Bobby (riding at point B) compared to Ana (riding at point A).

Therefore, based on the formula \(\( v = r \cdot \omega \)\), Bobby will have a greater magnitude of linear velocity since his distance from the center is greater.

So the correct answer is: Bobby has the greater magnitude of linear velocity.

Know more about velocity:

https://brainly.com/question/30559316

#SPJ4

Your question is incomplete, but most probably your full question was,

A merry-go-round is rotating at constant angular speed. Two children are riding the merry-go-round: Ana is riding at point A and Bobby is riding at point B.

1. Which child moves with greater magnitude of linear velocity?

a. Ana has the greater magnitude of linear velocity.

b. Bobby has the greater magnitude of linear velocity.

c. Both Ana and Bobby have the same magnitude of linear velocity.

Answer:

it's A.The remaining light bulbs go out.

Answer:

Approximately \(0.29\; {\rm m \cdot s^{-1}}\).

Explanation:

Make use of the fact that total momentum is conserved in collisions.

The momentum of an object of mass \(m\) and velocity \(v\) is \(p = m\, v\).

The momentum of the two trolleys before the collision would be:

Thus, the total momentum of the two trolleys right before the collision would be \(2\; {\rm kg \cdot m \cdot s^{-1}}\).

Since the two trolleys are stuck to one another after the collision, they could modelled as one big trolley of mass \(m = 3\; {\rm kg} + 4\; {\rm kg} = 7\; {\rm kg}\).

The momentum of the two trolleys, combined, is conserved during the collision. Thus, the total momentum of the new trolley of mass \(m = 7\; {\rm kg}\) would continue to be \(v = 2\; {\rm kg \cdot m \cdot s^{-1}}\) shortly after the collision.

Rearrange the equation \(p = m\, v\) to find the velocity of the two trolleys combined:

\(\begin{aligned}v &= \frac{p}{m} \\ &= \frac{2\; {\rm kg \cdot m \cdot s^{-1}}}{7\; {\rm kg}} \\ &\approx 0.29\; {\rm m \cdot s^{-1}}\end{aligned}\).