Part A) What is the magnitude of the force on the 1.0 nC charge in (Figure 1)?

Part B) What is the direction of the force on the 1.0 nC charge?

The quantity of heat energy that must be transferred to 2.25 kg of brass to raise its temperature from 20 °C to 240 °C is 195030 J

First, we shall list out the given parameters from the question. This is shown below:

The quantity of heat energy that must be transferred can be obtained as follow:

Q = MCΔT

= 2.25 × 394 × 220

= 195030 J

Thus, we can conclude quantity of heat energy that must be transferred is 195030 J

Learn more about heat:

https://brainly.com/question/16398667

#SPJ1

Explanation:

density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

The relative density of a substance is defined as the ratio of the density of that substance to the density of water at 4oC. It is also defined as the ratio of the mass of substance to the mass of equal volume of water at 4oC. i.e., R.D. = Mass of the substance / mass of an equal volume of water at 4oC

Answer:

5N

Explanation:

We have a simple problem of momentum here.

ΔMomentum= mΔv= FΔt

Solve for F

mΔv/Δt=F

Plug in givens

1*(2-1.5)/0.1=F

F=5N

The amount of force that the wall imparts on the ball is 5.0N

According to Newton's second law, the formula for calculating the force applied is expressed as:

\(F=ma\)

m is the mass of the object

a is the acceleration of the object

Since acceleration is the change in velocity of an object, hence \(a=\frac{\triangle v}{t}\)

The applied force formula becomes \(F=\frac{m\triangle v}{t}\)

Given the following parameters

m = 1.0kg

\(\triangle v=2.0-1.5\\\triangle v=0.5m/s\)

t = 0.1sec

Substitute the given parameter into the formula

\(F=\frac{1.0\times 0.5}{0.1}\\F=\frac{0.5}{0.1}\\F=5N\)

Hence the amount of force that the wall imparts on the ball is 5.0N

Learn more here: https://brainly.com/question/17811936

Answer:

Explanation:

The same as its weight before adding the duck

Answer:

false....

Explanation:

brainliest

Answer:

B

Explanation:

From Kepler's Third Law, T^2 is proportional to r^3.

Now r of B is larger than r of A,

so T of B is larger than T of A.

Then B takes the longest time.

Dwarf Galaxy B takes the longest time to orbit the large galaxy. This can be explained using Kepler's Third Law of Planetary Motion, also known as the Law of Periods.

Kepler's Third Law states that the square of the orbital period (T) of a celestial body is directly proportional to the cube of the semi-major axis (a) of its elliptical orbit. Mathematically, it can be expressed as:

\(\[ T^2 \propto a^3 \]\)

Where:

T is the orbital period (time taken for one complete orbit), and

a is the semi-major axis of the elliptical orbit.

In the case of dwarf galaxies A and B revolving around the large galaxy, we can use the distances from the large galaxy to each of the dwarf galaxies as the semi-major axes (a) of their orbits.

Let's compare the values of \(\( a^3 \)\) for the two dwarf galaxies:

For Dwarf Galaxy A:

\(\( a_{\text{A}} = 70,000 \)\) light years

For Dwarf Galaxy B:

\(\( a_{\text{B}} = 500,000 \)\) light years

Now, let's calculate \(\( a^3 \)\) for each galaxy:

For Dwarf Galaxy A:

\(\( a_{\text{A}}^3 = (70,000)^3 = 343,000,000,000 \)\) cubic light years

For Dwarf Galaxy B:

\(\( a_{\text{B}}^3 = (500,000)^3 = 125,000,000,000,000,000 \)\) cubic light years

Since \(\( a_{\text{B}}^3 \)\) is significantly larger than \(\( a_{\text{A}}^3 \)\), it means that Dwarf Galaxy B has a larger a value and therefore a longer orbital period according to Kepler's Third Law. In other words, Dwarf Galaxy B takes the longest time to orbit the large galaxy.

To know more about Galaxy:

https://brainly.com/question/29546640

#SPJ3

Answer:

\(\Delta T=38.95^{\circ} C\)

Explanation:

Given that,

Heat measured, Q = 81500 J

Mass of water, m = 0.5 kg

The specific heat of water is 4,184 J/kg °C

We need to find the change in temperature. The heat measured is given by :

\(Q=mc\Delta T\)

Where

\(\Delta T\) is the change in temperature

\(\Delat T=\dfrac{Q}{mc}\\\\\Delat T=\dfrac{81500}{0.5\times 4184 }\\\\\Delta T=38.95^{\circ} C\)

So, the change in temperature is \(38.95^{\circ} C\).

Answer:

\(\mu=41.5\textdegree\)

Explanation:

From the question we are told that:

Water index of refraction \(i_w=1.33\)

Glass index of refraction \(i_g=1.50\)

Generally the equation for Brewster's law is mathematically given by

 \(\theta=tan^{-1}(\frac{i_g}{i_w})\)

 \(\theta=tan^{-1}(\frac{1.50}{1.33})\)

 \(\theta=48.44 \textdegree\)

Therefore Angle of incident to plane  \mu (normal at 90 degree to the surface)

 \(\mu=90\textdegree-\theta\)

 \(\mu=90\textdegree-48.44\textdegree\)

 \(\mu=41.5\textdegree\)

The average force exerted by the golf club on the golf ball is equal to 1769.2N.

Force acting on an object can be described as the influence that changes the state of the object of motion or rest. The S.I. unit of force is Newton (N) and force is a vector parameter.

The mathematical formula of the 2nd law of motion for force is written as follows:

F = ma

Given the mass of the ball, m= 0.046 Kg

The golf club was in contact with the ball for time, t = 1.3 ms = 1.3 ×10⁻³s

The speed of the golf ball, v = 50 m/s

We know that, equation of motion: \(v = u + at\)

50 = 0  + a (1.3 ×10⁻³)

a = 38.46 ×10³ m/s²

The average force on the golf ball will be:

F = ma = 0.046 ×38.46 ×10³

F = 1769.2 N

Learn more about force, here:

brainly.com/question/13191643

#SPJ1

equal in magnitude but opposite in direction

A 6.47 mm high firefly sits on the axis of, and 12.3 cm in front of, the thin lens A, whose focal length is 5.77 cm, the height of the image is 2.61 mm.

We can use the thin lens equation to find the image distance and then use the magnification equation to find the height of the image.

Let's call the distance between the firefly and lens A "d1", the distance between the lenses "d2", the image distance from lens B "d3", and the height of the firefly "h1".

Using the thin lens equation for lens A:

1/fA = 1/d1 + 1/d3

Since the firefly is very small, we can assume that the rays of light from it are parallel to the axis of the lenses, so d1 = 12.3 cm.

Solving for d3, we get:

1/d3 = 1/fA - 1/d1

1/d3 = 1/5.77 cm - 1/12.3 cm

d3 = -23.46 cm

The negative value for d3 indicates that the image is formed on the same side of lens B as the firefly, which means it is a virtual image.

Now we can use the magnification equation:

m = -d3/d2

where m is the magnification of the image. The negative sign indicates that the image is inverted.

Using the distance between the lenses, d2 = 58.1 cm, we get:

m = -(-23.46 cm) / 58.1 cm

m = 0.403

This tells us that the image is smaller than the firefly, and its height is:

h2 = m * h1

h2 = 0.403 * 6.47 mm

h2 = 2.61 mm

Therefore, the height of the image is 2.61 mm.

For more details regarding lens, visit:

https://brainly.com/question/17014859

#SPJ1

Answer:

589.3 nm

Explanation:

The wavelength of a sodium light is 5893 A.

We need to find the wavelength in nm.

\(5893\ A=5893\times 10^{-10}\ m\)

Also, \(1\ nm=10^{-9}\ m\)

\(5893\ A=5893\times 10^{-9}\times 10^{-1}\ m\\\\=5893\times 10^{-1}\ nm\\\\=589.3\ nm\)

So, the wavelength of sodium light is 589.3 nm.

A cell of inter resistance of 0.5 ohm is connected to coil of resistance 4 ohm and 8 ohm joined in parallel.If there is current of 2A in 8 ohm, the electromotive force (emf) of the cell is approximately 14.5 volts.

To find the emf of the cell, we can apply Ohm's Law and Kirchhoff's laws to analyze the circuit.

Given:

Resistance of the coil, R1 = 4 ohm

Resistance of the other resistor, R2 = 8 ohm

Current passing through the 8-ohm resistor, I = 2A

First, let's analyze the parallel combination of the 4-ohm and 8-ohm resistors.

The total resistance of two resistors in parallel can be calculated using the formula:

1/Rp = 1/R1 + 1/R2

Substituting the given values, we have:

1/Rp = 1/4 + 1/8

1/Rp = 2/8 + 1/8

1/Rp = 3/8

Rp = 8/3 ohm

Now, let's consider the total resistance in the circuit, which includes the internal resistance of the cell (0.5 ohm) and the parallel combination of the resistors (8/3 ohm).

R_total = R_internal + Rp

R_total = 0.5 + 8/3

R_total = 1.833 ohm

Now, we can find the emf of the cell using Ohm's Law:

emf = I * R_total

emf = 2 * 1.833

emf ≈ 3.667 volts

Therefore, the emf of the cell is approximately 3.667 volts.

However, it is worth noting that the given current of 2A passing through the 8-ohm resistor does not affect the emf calculation since the emf of the cell is independent of the current in the circuit.

For more such questions on emf, click on:

https://brainly.com/question/13744192

#SPJ8

Answer:

ocean covers 71 percent of the earth

Answer:

the ocean  covers 71 percent of Earth's surface.

Explanation:

planets shine more stedily because they are closer to earth and so appear as pinpoints but as tiny disks in our sky.

Answer:

a

Explanation:

its right

To increase the electromagnet's strength, the student must enlarge the nail, wrap more wire around the nail, and increase the voltage of the battery. Option c is the correct answer.

To learn more about electromagnet, refer to

brainly.com/question/7382276

#SPJ2

Answer:

4.3 m/s^2

Explanation:

V=0

\(V_{f}\) = 26.41 m/s

t= 6.2 s

a= ?

\(V_{f}\) = \(V_{i}\) + at

26.41 m/s = 0+a (6.2s)

a= \(4.3 m/s^{2}\)

Answer:

B is the answer bc it's no way c an a and d can maybe c

1. The force between the two charges is 1.78 × 10⁻⁵ pounds, with opposite signs indicating attraction between the charges.

2. The resistance of 10 gauge aluminum wire over a 40 ft distance would be 0.506 ohms.

3. The cost of electricity from the automobile battery is 38.6 cents per kWh.

4. The current that would be carried through the body is 0.8 mA if dry.

1. The force between two point charges can be calculated using Coulomb's law, which states that the force is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Using the values given, the force can be calculated as F = (k * q1 * q2) / r², where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them. Plugging in the values, the force can be calculated as 1.78 × 10⁻⁵ pounds, with opposite signs indicating attraction between the charges.

2. The resistance of a wire is determined by its length, cross-sectional area, and resistivity. The resistivity of aluminum is higher than that of copper, so a larger cross-sectional area is required to achieve the same resistance. Using the gauge size conversion chart, 10 gauge aluminum wire has a cross-sectional area of 5.26 mm², which is approximately 83% of the cross-sectional area of 12 gauge copper wire.

Thus, the resistance of 10 gauge aluminum wire over a 40 ft distance can be calculated as R = (rho * L) / A, where rho is the resistivity of aluminum, L is the length, and A is the cross-sectional area. Plugging in the values, the resistance can be calculated as 0.506 ohms.

3. To calculate the cost of electricity per kWh, the total cost and the total amount of energy supplied must be known. Since the battery supplies 12 V and 51 A for one hour, the total energy supplied can be calculated as E = V * I * t, where V is the voltage, I is the current, and t is the time.

Plugging in the values, the total energy supplied can be calculated as 612 watt-hours (Wh). Since one kWh is equal to 1000 Wh, the total energy supplied can be converted to 0.612 kWh. Dividing the total cost by the total energy supplied gives the cost per kWh, which is 38.6 cents.

4. The current through the body can be calculated using Ohm's law, which states that current is equal to voltage divided by resistance. Using the values given, the resistance can be either 100,000 ohms or 300 ohms depending on whether the skin is dry or wet.

To learn more about electricity, here

https://brainly.com/question/27545813

#SPJ1

The distance traveled by the object during the time of acceleration is 211.75 m.

Distance can be defined as the total lenght between two points.

T o calculate the distance traveled by the object during the time of acceleration, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the distance traveled by the object is 211.75 m.

Learn more about distance here: https://brainly.com/question/26550516

#SPJ1

The magnitude of the electric field between the plates, from least to greatest is shown by option C.

We know that when two plates that are conducting are arranged in such a way that a gap is left in between them, the we have a capacitor. The electric potential of the capacitor would have a lot to do with the distance of the separation of the plates.

As such, the closer the plates are together, the greater the electric potential of the plates and the more the plates are apart, the lesser the electric potential of the plates.

Learn more about electric potential:https://brainly.com/question/17058027

#SPJ1

Answer:

b is the answer of this qs

Two reasons why using a graph to find the refractive index is a better method than simply calculating it using a pair of angles from the table are:

i) Graphs provide a better visual representation of the data: When calculating the refractive index using a pair of angles from a table, it can be difficult to visualize how the data points relate to each other.

ii) Calculating refractive index using a graph is more accurate: Calculating the refractive index using a pair of angles from a table can be prone to errors, particularly if the table is not accurate or the measurements are imprecise.

When it comes to finding the refractive index, using a graph is often a better method than simply calculating it using a pair of angles from the table.

Here are two reasons why:

Graphs provide a better visual representation of the data:When calculating the refractive index using a pair of angles from a table, it can be difficult to visualize how the data points relate to each other. By contrast, a graph provides a clear and easy-to-read visual representation of the data, making it easier to identify patterns and trends. Graphs are also useful for identifying outliers or errors in the data that might not be immediately apparent when using a table.

Calculating refractive index using a graph is more accurate: Calculating the refractive index using a pair of angles from a table can be prone to errors, particularly if the table is not accurate or the measurements are imprecise. Using a graph, on the other hand, allows for a more precise calculation of the refractive index. This is because the graph allows you to take into account any minor variations in the measurements, which might be missed when using a table.

Overall, using a graph is a more accurate and reliable method for finding the refractive index than simply using a table. It allows for a better visual representation of the data and provides a more accurate calculation of the refractive index.

For more such questions on refractive index, click on:

https://brainly.com/question/83184

#SPJ8

This question is from quizlet.

So better check this question!

Answer:

part 1. 1/2kx^2 = 1/2mv^2

1/2(850)(0.40)^2 = 1/2(0.5)v^2

68 = 0.25v^2

272 = v^2

v = 15.49m/s

Explanation:

part 1. the max potential energy would be equal to the maximum kinetic energy assuming no energy is lost, because of this, we can set the spring potential energy to the kinetic energy. from there plug in all the variables sorry all known variables and solve for v. make sure to plug in 0.5 for mass so that it is in kilograms.  

Answer:

convergence and trench

Explanation:

LOL

Answer: -18

Explanation:

Answer:

its -18

Explanation:

Khan Academy