Mesh Analysis allows calculate the current in each branch of a circuit. True False

The true statement regarding the transverse waves should be option D. the direction at which the energy and the matter should be travel in the perpendicular direction.

It is the waves where the motion in which all the points should be on the wave oscillate along the paths at the right angles with respect to the wave of the direction. The example of this kind of waves should be electromagnetic, etc. In this, the directions where the energy and the travel of matter should be perpendicular to each other

Hence, the correct option is d.

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Answer:

315N each

Explanation:

sence no one is winning, they must be pulling the same amount. So this means that we have to devide the total energy in half to find each side. 630/2 =315

Answer:

stellar fusion

Explanation:

formation of moons expansion of the universe formation of stars, formation of planets, formation of nebulae

Answer:

Explanation:

Answer:

1. no

2. it would be different because of gravity.

3. no

4. they would be different because of the unit of measurment used. Mexico and any other country would use the metric system.

Answer:

1.55

Explanation:

that it is the standard refractive index.

The mass of the cube is found to be to 218.7 grams with a density of 8.1g/cm³.

The density of any substance is calculated by dividing the mass of the substance by the volume of that substance.

Hayat is given that there is a cube which is 3 cm from each side and the density of the cube is given to be 8.1g/cm³.

Calculating the volume of the cube by using the formula,

V = a³

a is the side of the cube,

V = 3³

V = 27cm³.

Now, for finding the mass,

Density = mass/volume

Mass = density x volume

Putting values,

Mass of the cube = 8.1 x 27

Mass of the cube = 218.7 grams.

So, the mass of the cube is found to be 218.7 grams.

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Coulomb's Law and Newton's Law of Gravitation are similar because they both are inverse-square laws. The laws are different because Coulomb's law relates to electric charges while Newton's law of gravitation relates to mass.

Coulomb's law is the law of electrostatic interaction between charged particles, which states that the force between two charged particles is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. The electric force is proportional to the product of the charges, and it is attractive if the charges are opposite and repulsive if the charges are the same.

Newton's Law of Gravitation is the force of attraction between two masses. It is an inverse-square law that states that the force between two masses is directly proportional to the product of the masses and inversely proportional to the square of the distance between them. This law also states that gravity acts on all objects, not just those with mass, and is always attractive.

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Coal, followed by gas is the largest source of electricity

Coal is the world’s biggest source of electricity production.

The world's biggest source of electricity production is Coal. Coal is a fossil fuel that is mined from the ground and is the largest source of energy for the generation of electricity worldwide. Coal is burned to produce heat, which is then used to boil water and produce steam. The steam drives turbines that generate electricity.

There are other sources of electricity as well, such as natural gas, nuclear energy, hydroelectric power, and renewable energy sources like wind and solar power.

However, coal is the largest source of electricity production in the world.

Answer:

11250Joules

Explanation:

1 half times 100kg times (15m/s) ^2

1. Squared the 15 =225m/s

2.times the kg to m/s- 100kg x 225m/s=22500

3. Divided by 2 = 11250Joules

KE= 11250J

Answer: B

Explanation:

We know that 1 minute has 60 seconds. It can't be d because the second hand is counting minutes. Can't be c or a because that is 2 mins. So it is B

A man who is travelling at 8.5 m/s on his bicycle will slow down to force -2.8 m/s when a car cuts in front of him, stopping in 3 seconds after travelling distance 13 m.

Acceleration in mechanics refers to the rate of change in a moving object's velocity with respect to time. accelerations as a vector quantity (in that they have magnitude and direction). An object's acceleration in relation to a force depends on the magnitude of the net force acting on it.

v = u + at

Inferring from the results, 0 = 8.5 Plus (-2.8)

t = -8.5/-2.8t t = 3.03s 3s

In light of the fact that v2 - u2 = 2 at this time, s = (v2 - u2)/2a s = (02 - (8.5)2)/2 (-2.8)

s = -72.25/-5.6\ss = 12.90 m ~ 13 m

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1. The power radiated away by Stuart is 191 W.

2. The radiative power absorbed by Stuart's body is 461 W.

3. The final temperature of Stuart's body will be approximately 54.4 °C.

1. The power radiated away by Stuart can be calculated using the Stefan-Boltzmann law:

Power radiated = emissivity * Stefan-Boltzmann constant * (surface area) * (temperature of body)⁴

Substituting the given values, we have:

Power radiated = 0.96 * (5.67 x 10⁻⁸ W/(m² K⁴)) * (0.4 m²) * (306 K)⁴

≈ 191 W

This calculation represents the power radiated away by Stuart's body due to its own temperature.

2. The radiative power absorbed by Stuart's body can be calculated by multiplying the incident solar radiation power per unit area by the exposed surface area and the emissivity:

Power absorbed = incident solar radiation * (exposed surface area) * emissivity

Given that only Stuart's top-half is exposed to the sun, the incident solar radiation is assumed to be 1200 W/m²:

Power absorbed = 1200 W/m² * (0.5 * 0.4 m²) * 0.96 ≈ 461 W

This calculation represents the power absorbed by Stuart's body due to the incident solar radiation.

3. The final temperature of Stuart's body is reached when the rate of heat absorption equals the rate of heat loss through radiation. In other words, when the power absorbed equals the power radiated away.

Setting the absorbed power (461 W) equal to the radiated power (191 W) and solving for the temperature, we can find the equilibrium temperature.

Power absorbed = Power radiated

1200 W/m² * (0.5 * 0.4 m²) * 0.96

= 0.96 * (5.67 x 10⁻⁸ W/(m² K⁴)) * (0.4 m²) * (final temperature)⁴

Simplifying the equation and solving for the final temperature, we find:

(final temperature)⁴ ≈ (1200 W/m² * 0.2 * 0.96) / (0.96 * 5.67 x 10⁻⁸ W/(m² K⁴))

(final temperature)⁴ ≈ 336031.68

Taking the fourth root of both sides, we get:

final temperature ≈ 54.4 °C

This calculation represents the equilibrium temperature that Stuart's body will reach while sunbathing.

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The direction of the vector a = 12i - 16j is -53.13 degrees.

The direction of the vector a = 12i - 16j can be determined using the formula:

direction = arctan(y/x)

where x is the coefficient of the i component (12) and y is the coefficient of the j component (-16).

Plugging in the values for x and y, we get:

direction = arctan(-16/12)

Using a calculator, we can find the value of the arctan function:

direction = -53.13 degrees

Therefore, the direction of the vector a = 12i - 16j is -53.13 degrees. Note that this is the direction of the vector in the counterclockwise direction from the positive x-axis.

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The transformation of Polaroid in recent years has been characterized by a shift from analog instant photography to embracing digital technologies and modernizing its product offerings. This transformation has allowed Polaroid to adapt to the changing market and cater to the needs and preferences of today's consumers.

In recent years, Polaroid has introduced a range of digital instant cameras that combine the nostalgic appeal of instant photography with the convenience and versatility of digital imaging. These cameras typically feature built-in printers that produce instant prints, capturing the essence of Polaroid's iconic instant photography experience. Additionally, Polaroid has embraced the smartphone era by developing products like the Polaroid Lab, which allows users to turn digital photos from their smartphones into classic Polaroid-style prints.

Furthermore, Polaroid has expanded its product lineup to include various accessories, such as portable printers and film formats compatible with both analog and digital devices. By embracing digital technologies while staying true to its instant photography heritage, Polaroid has successfully repositioned itself in the market, appealing to a new generation of photography enthusiasts seeking a blend of nostalgia and modern functionality.

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The elastic potential energy of a spring is the product of one-half of its spring constant and the square of its deformation.

The potential energy of the spring is defined as the potential energy stored as a result of the change in the shape of a particular elastic object or a spring.

The energy is stored before the force is removed, and the spring comes back to its original shape. It does work in the process. The deformation could involve compressing, stretching, or twisting the object.

It is calculated as the work done in stretching the spring, and it depends on the spring constant k, and the distance stretched.

The potential energy formula of a spring is given as

P.E = ½ k x2

Where,

k = the spring constant

x = the spring displacement

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Answer:

density is the correct answer

Explanation:

The electrostatic force on Q3 by Q1 is -1.99 N and the force from Q2 is -36.2  × 10⁹ N.. Then the net electric  force acting on A is 5.8 × 10⁻⁵ N.

According to Coulomb's law of force, the electrostatic force between two charges separated by a distance of r is given as follows:

Fc = Ke q1 q2 /r²

where Ke = 8.9 × 10⁹ Nm²/C²

Given the charge of  Q1 = -1.21 ×10⁻⁶ C

charge of Q3 = 148 ×10⁻⁶   C

distance r =  0.447 + 0.447 =0.894 m

then Fc =  8.9 × 10⁹ Nm²/C²  (-1.21 ×10⁻⁶ C ) (148 ×10⁻⁶C)/(0. 894 m)² = -1.99 N

Similarly, the force on A by the charge C is calculated as follows:

distance to C = 0.447 m

charge of Q2 = -55 H C = -5500 C

Then Fc =   8.9 × 10⁹ Nm²/C²  (-5500 C ) (148 ×10⁻⁶C)/(0.447 m)² = - 36.2 × 10⁹ N

The net electric force acting on Q3 =  - 36.2× 10⁹ N + -1.99 N = -38.9 × 10⁹ N.

Therefore, the net electric force acting on Q3 is  -38.9 × 10⁹ N.

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The elements with the largest atoms are found in the bottom row of the periodic table, specifically in the seventh period.

In the periodic table, elements are arranged in order of increasing atomic number. Each period represents a new energy level or shell that electrons occupy. As we move from left to right across a period, the atomic radius generally decreases because the increasing positive charge of the nucleus pulls the electrons closer. However, when we move down a group, or column, the atomic radius increases because new energy levels are added.

The seventh period of the periodic table is the largest in terms of the number of elements it contains. This period includes elements such as francium (Fr), radium (Ra), and uranium (U). These elements have the largest atomic radii in their respective periods due to the addition of new energy levels as we move down the group. The increase in atomic size is primarily attributed to the increase in the number of electron shells, which results in a greater distance between the nucleus and the outermost electrons. Therefore, the elements in the seventh period of the periodic table have the largest atoms.

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When a rock is transported from the moon to the earth, both mass and weight are changed.

Explanation:

The reason why both mass and weight are changed when a rock is transported from the moon to the earth is that the gravitational field on the surface of the earth is stronger than that on the surface of the moon.

This means that the rock's mass, which is the measure of the amount of matter that an object contains, will remain the same.

However, the rock's weight, which is the force with which an object is attracted to the earth due to gravity, will be different since the gravitational pull on the moon is much weaker than that on the earth. This implies that when the rock is transported from the moon to the earth, it will experience a higher gravitational force which will cause it to weigh more compared to when it was on the moon.

Therefore, both mass and weight will change when a rock is transported from the moon to the earth.

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To find the current in the resistor, we can use Ohm's Law and the concept of equivalent resistance. Thus, option A is correct.

First, let's calculate the equivalent resistance of the three cells connected in parallel. When resistors are connected in parallel, the reciprocal of the equivalent resistance is equal to the sum of the reciprocals of the individual resistances:

1/Req = 1/R1 + 1/R2 + 1/R3

Given that R1 = R2 = R3 = 22 Ω (internal resistance of each cell), we can substitute the values:

1/Req = 1/22 + 1/22 + 1/22

1/Req = 3/22

Taking the reciprocal of both sides, we find:

Req = 22/3 Ω

Now we can use Ohm's Law to calculate the current (I) in the resistor. Ohm's Law states that the current flowing through a resistor is equal to the voltage across it divided by its resistance:

I = V/R

Given that V = 1.1 V (emf of each cell) and R = 32 Ω (resistance), we can substitute the values:

I = 1.1/32

Calculating this value, we find:

I ≈ 0.034375 A

Therefore, the current in the resistor is approximately 0.034375 A.

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Radio waves , microwaves , infrared radiation , visible light , ultraviolet waves , x-rays , gamma rays

PLEASE GIVE BRAINLIEST

Answer:

Explanation:

Assuming the squirrel is jumping off the ground, here's what we know but don't really know...

v₀ = 4.0 at 50.0°

So that's not really the velocity we are looking for. We are dealing with a max height problem, which is a y-dimension thing. Therefore, we need the squirrel's upward velocity, which is NOT 4.0 m/s. We find it in the following way:

\(v_{0y}=4.0sin(50.0)\) which gives us that the upward velocity is

v₀ = 3.1 m/s

Moving on here's what we also know:

a = -9.8 m/s/s and

v = 0

Remember that at the very top of the parabolic path, the final velocity is 0. In order to find the max height of the squirrel, we need to know how long it took him to get there. We are using 2 of our 3 one-dimensional equations in this problem. To find time:

v = v₀ + at and filling in:

0 = 3.1 - 9.8t and

-3.1 = -9.8t so

t = .32 seconds.

Now that we know how long it took him to get to the max height, we use that in our next one-dimensional equation:

Δx = \(v_0t+\frac{1}{2}at^2\) and filling in:

Δx = \(3.1(.32)+\frac{1}{2}(-9.8)(.32)^2\) and using the rules for adding and subtracting sig fig's correctly, we can begin to simplify this:

Δx = .99 - .50 so

Δx = .49 meters

Answer:

not sure what the question is bro

Explanation:

It takes 0.225 s for the block to reach the bottom of the frictionless inclined plane.

If the block starts from rest, we need to find out how long it will take for the block to reach the bottom of the inclined plane.

To solve this problem, we will use the concept of kinematics. We know that the gravitational potential energy of the block is transformed into kinetic energy as it slides down the incline. At the bottom, all potential energy will be transformed into kinetic energy.

The initial velocity of the block, u = 0 m/s

The angle of inclination, θ = 30°

The distance traveled, s = 1.0 m

The acceleration due to gravity, g = 9.8 m/s²


Using the formula of the Kinematic Equation for Uniformly Accelerated Motion:

v² = u² + 2gs

v² = 0 + 2 × 9.8 × 1.0

v² = 19.6

v = √19.6

v = 4.43 m/s

We know that the average velocity of an object in motion is equal to the total distance traveled divided by the time taken to travel that distance.

v = s/t

t = s/v

t = 1.0 / 4.43

t = 0.225 s (approx)

Therefore, the block will take approximately 0.225 s to reach the bottom of the inclined plane.

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