an electron has a velocity of direction. what is the magnetic force (magnitude and direction) exerted on the electron?

Answer:

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

Explanation:

Answer:

Hey mate....

Explanation:

This is ur answer.....

According the NASA's StarChild Website, "The universe is a vast open space which contains all of the matter and energy in existence. The universe contains all of the galaxies, nebulae, stars, and planets. The exact size of the universe is unknown. Scientists believe the universe is still expanding outward.

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

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True, Fronts are boundaries between different air masses, and their direction of movement is indicated by symbols such as triangles and half circles on weather maps.

What are fronts and how is their direction of movement depicted on weather maps?

In meteorology, a front is a boundary between two different air masses that have different temperature, humidity, or pressure characteristics. Fronts can be depicted on weather maps using symbols, such as triangles or half circles, to represent the direction of movement of the front.

The orientation of the symbols is determined by the direction of the movement of the front, with the point of the triangles or the curved side of the half circles facing in the direction that the front is moving. By looking at the symbols on a weather map, meteorologists can determine the location, speed, and direction of fronts, which are important factors in forecasting weather conditions.

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Answer:

  15.8 N

Explanation:

The component in a given direction is the magnitude of the applied force, multiplied by the cosine of the angle between its application and the direction of interest.

The horizontal component is ...

  (20 N)cos(38°) ≈ 15.8 N

A string exerts a force of 20 N on a box at an angle of 38° from the horizontal. What is the horizontal component of the force on the box?

15.8 N

Answer:

The correct answer to the following question will be "2.7 m".

Explanation:

The given values are:

Velocity, v = 16 m/s

mass, m = 0.27 kg

Mechanical energy, M.E = 41.70 J

g = 9.8 m/s²

As we know,

Kinetic energy, \(K=\frac{mv^2}{2}\)

Potential energy, \(U=m.g.h\)

Now, the total mechanical energy will be:

⇒  \(\frac{mv^2}{2}+U\)

⇒  \(41,71 \ kg.m^2/s^2\)

Now,

⇒  \(h=\frac{E-(\frac{mv^2}{2})}{mg}\)

On putting the estimated values, we get

⇒    \(=\frac{41.70-(\frac{0.27(16)^2}{2})}{0.27\times 9.8}\)

⇒    \(=\frac{41.70-(\frac{0.27\times 256}{2} )}{2.64}\)

⇒    \(=\frac{41.70-34.56}{2.64}\)

⇒    \(=\frac{7.14}{2.64}\)

⇒    \(=2.7 \ m\)

Answer:

2.7 m

Explanation:

The magnetic force will act on the charge carrier in a direction perpendicular to both the magnetic field direction and the velocity direction of the charge carrier.

In this scenario, the magnetic field points along the y-axis in a positive direction, and the charge carrier moves along the z-axis in a negative direction. Since the velocity of the charge carrier is in the same direction as the z-axis, the direction of the magnetic force acting on the charge carrier will be perpendicular to both the y-axis and the z-axis.

To determine the direction of the magnetic force, we can use the right-hand rule. If we point the thumb of our right hand in the direction of the velocity of the charge carrier (i.e., along the negative z-axis), and the fingers in the direction of the magnetic field (i.e., along the positive y-axis), then the direction of the magnetic force will be perpendicular to both and will be directed towards the negative x-axis.

Therefore, the magnetic force acting on the charge carrier will be directed towards the negative x-axis.

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Answer:

yes

Explanation:

there are other quantities that are dimensionless, but have a unit.

For example, radian is the unit for an angle. But it is dimensionless because it is defined to be the ratio of two lengths.,

a dimensionless quantity will always be independent of the base units — meter, second, kilograms, kelvin, candela, moles, ampere.

Other examples:

1. Mass fraction

2.Mole fraction

both have unit (kg/kg)

Answer:

A quantity that has dimensions must have units. Yes a quantity have units but still be dimensionless for example,unit of angle is radian ,but it is a dimensionless quantity. A dimensionless quantity may have unit. ... A unitless quantity never has a non-zero dimension.

I hope it's helpful!

Answer:

of course is clear

Explanation:

very clear

Given that

heat capacity of water = 4200

heat capacity of aluminium = 897

heat capacity of oil = 1900

heat capacity of gold = 129

Heat capacity is the amount of heat a material absorbs to increase its temperature by 1 degree Celsius.

So, larger the heat capacity of a material lower will be the temperature change.

If equal amount of energy is applied to the materials, then gold will have the greatest temperature change as its heat capacity is lowest than other materials.

Answer:

The temperature at which a substance boils AND whether a substance floats or sinks in water

Explanation:

i just had this question and got it right with these answers

Matter can be defined or described as anything that takes up space, and it is composed of miniscule particles called atoms. It must display the two properties of mass and volume.

"Insignificant, microscopic, small, tiny, diminutive, minute, unimportant, particles are miniscule particle."

"An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across."

"Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram."

"Matter is any substance that has mass and takes up space by having volume."

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Answer:

a.) L = 2.64 kgm^2/s

b.) V = 4.4 m/s

Explanation: Jessica stretches her arms out 0.60 m from the center of her body. This will be considered as radius.

So,

Radius r = 0.6 m

Mass M = 2 kg

Velocity V = 1.1 m/s

Angular momentum L can be expressed as;

L = MVr

Substitute all the parameters into the formula

L = 2 × 1.1 × 0.6 = 1.32kgm^2s^-1

the combined angular momentum of the masses will be 2 × 1.32 = 2.64 kgm^2s-1

b. If she pulls her arms into 0.15 m,

New radius = 0.15 m

Using the same formula again

L = 2( MVr)

2.64 = 2( 2 × V × 0.15 )

1.32 = 0.3 V

V = 1.32/0.3

V = 4.4 m/s

Her new linear speed will be 4.4 m/s

Answer:

F

Explanation:

Answer:

False

Explanation:

Galaxies range from 1,000 to 100,000 parsecs in diameter and are usually separated by millions of parsecs. Edwin Hubble invented a classification of galaxies and grouped them into four classes: spirals, barred spirals, ellipticals and irregulars.

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According to the given statement The mass attached to the spring is 3.99 kg.

A spring system with a block hanging from or affixed to the spring's free end is known as a spring-mass system. The spring-mass system is typically used to calculate the duration of any object in a simple harmonic motion.

F = -kx

where k is the spring constant, and

x is the displacement of the spring

The angular frequency of the spring is:

\(\omega=\sqrt{\frac{k}{m}}\)

m is the mass of object attached to the spring

So, frequency:

f = ω/2π = \(\frac{1}{2 \pi} \sqrt{\frac{k}{m}}\)

m = 4π²f² / k

given that f = 0.9 Hz, and

k = 9 N/m

m = (4×π²×0.9²)/8

m = 3.99 kg

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Explanation:

The mass of the object is 370N / (9.81N/kg) = 37.7kg.

The momentum of the stationary car weighing 9810N is zero.

The momentum (p) of an object is defined as the product of its mass (m) and its velocity (v):

p = m * v

Since the car is stationary, its velocity is zero. However, we can still calculate its momentum using its weight (W) and the acceleration due to gravity (g), which is approximately 9.81 \(m/s^2\):

W = m * g

Rearranging this equation, we can solve for the mass of the car:

m = W / g

Substituting the given weight of the car, we get:

m = 9810 N / 9.81 \(m/s^2\) = 1000 kg

Now we can calculate the momentum of the car as:

p = m * v = 1000 kg * 0 m/s = 0 kg*m/s

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The correct option is B: The tension on the aluminum wire is approximately 65 N.

To find the tension on the aluminum wire, we can use the formula for the speed of transverse waves in a string:

v = √(T/μ)

where:

v = speed of transverse waves

T = tension in the wire

μ = linear mass density (mass per unit length) = density * area

First, let's calculate the area of the aluminum wire:

Given diameter = 4.6 mm

Radius = diameter/2 = 4.6 mm / 2 = 2.3 mm = 2.3 x \(10^(^-^3^)\) m

Area = π * \(r^2\)

      = π * (2.3 x 10⁽⁻³⁾)²

      = π * (5.29 x 10⁽⁻⁶⁾)

      ≈ 1.658 x 10⁽⁻⁵⁾ m²

Now, let's calculate the linear mass density (μ):

Density of aluminum = 2700 kg/m³

Linear mass density (μ) = density * area

                       = 2700 kg/m³ * 1.658 x 10⁽⁻⁵⁾ m²

                       ≈ 0.0447 kg/m

Now, we can rearrange the formula for the speed of transverse waves to solve for tension (T):

T = μ * v²

Given v = 38 m/s and μ = 0.0447 kg/m, we can calculate T:

T = 0.0447 kg/m * (38 m/s)²

 ≈ 63.9906 N

Rounding to the nearest whole number, the tension on the wire is approximately 64 N.

Therefore, the closest option from the given choices is: b) 65 N

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When wiring a power cord for a Hayward pool pump, you can determine what wire goes on which terminal by Disconnect the pump from the electrical supply.and then dentify the wires in the power cord. One wire will be black, and the other wire will be white.

Next, Look at the terminals on the back of the pump motor. There should be two terminals, one labeled "L1" and the other labeled "L2."S

: Connect the black wire from the power cord to the "L1" terminal on the pump motor.

Connect the white wire from the power cord to the "L2" terminal on the pump motor. Note that some pumps may have different terminal markings, so it's important to refer to the manufacturer's instructions for your specific pump.

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Answer:

\(\Large \boxed{\mathrm{5.67 \ seconds }}\)

Explanation:

\(\displaystyle \mathrm{acceleration \ = \ \frac{final \ velocity - initial \ velocity }{elapsed \ time}}\)

\(\displaystyle A \ = \ \frac{V_f - V_i }{t}\)

\(\displaystyle 3 \ = \ \frac{25 - 8 }{t}\)

\(\displaystyle 3 \ = \ \frac{17 }{t}\)

\(\displaystyle t \ = \ \frac{17 }{3} \approx 5.67\)

The resulting magnetic force on the metal bar is directed to the west, which is perpendicular to both the direction of the magnetic field and the direction of the electron drift.

The correct answer is C. West.

The situation described involves a magnetic field, an electric current, and a magnetic force. In this case, the magnetic field is directed North, and the electrons in the bar are drifting East due to the battery. To find the direction of the magnetic force, we can use the right-hand rule.

Point your right-hand thumb in the direction of the electron drift (East). Curl your fingers in the direction of the magnetic field (North). Your palm will face the direction of the magnetic force acting on the bar. Following these steps, we find that the magnetic force is directed West .

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Answer:

you are very kind except for your habit

The path of the light gets changed and the change in the path of light is obtained from the reflection and refraction process

Light is electromagnetic radiation and travels in space without any medium. It possesses dual nature. The wave nature of light is reflection, refraction, and interference.

The path of light gets changes through the process of reflection and refraction. The incident right after hitting the transparent objects, the light ray moves in the opposite direction. The bouncing back of the light is called Reflection.

When light rays enter from the rarer to denser medium or denser to rarer medium, the path of light gets changed and the speed of the light decreases. This process is called refraction.

The path of light gets changed by using transparent objects like mirrors, lenses, and prism.

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The ion rocket engine give an acceleration to the space probe of: 0.001 m/s²

To solve this exercise, the formula and procedure to be applied is:

F = m * a

Where:

Information about the problem:

Applying the force formula and isolating the acceleration, we get:

F = m * a

a = F/m

a = 1 N /1000kg

a =  1 kg * m/s² / 1000kg

a = 0.001 m/s²

It is the physical magnitude that expresses the effort necessary to move the mass of one kilogram with an acceleration of one meter per second squared, this is expressed in units of the international system in Newton.

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The resistance of the battery if a current of 23A flows through a circuit and the battery produces a potential difference of 9V is 0.39 ohms.

Resistance is the force that tends to oppose motion. It is measured in ohms. The resistance of a battery can be calculated using the following formula;

V = IR

Where;

According to this question, a current of 23A flows through a circuit and the battery produces a potential difference of 9V. The resistance can be calculated as follows:

R = V/I

R = 9/23

R = 0.39ohms

Therefore, 0.39ohms is the resistance of the battery.

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Only when a current passes through a wire encircling the core of an electromagnetic magnet do they become magnetic.

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Answer:

Employees

Explanation:

1) The corporate mission statement of Southwest Airlines states that the airline is focused on the provision of the high quality customer service that will also be given with kindness, a good nature, pride that reflect the essence of the Company

2) The mission statement for the employees is the provision of an equal opportunity and stable work environment that promotes personal development and learning.

Answer:

papa's donuteria

Explanation:

:rawr:

without additional information, we cannot calculate the exact magnitude of the torque required to hold the loop in the given position.

To find the magnitude of the torque required to hold the loop in the given position, we need to consider the relationship between the magnetic field, the area vector of the loop, and the torque acting on the loop.

The torque acting on a loop of area A in a magnetic field B can be calculated using the formula:

τ = B * A * sin(θ)

where:

τ is the torque,

B is the magnitude of the magnetic field,

A is the area vector of the loop,

θ is the angle between the magnetic field and the area vector.

Since the position of the loop is not described in the question, we cannot determine the angle θ or the area vector A.

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Answer:

The term “chills” refers to a feeling of being cold without an apparent cause. You get this feeling when your muscles repeatedly expand and contract and the vessels in your skin constrict. Chills can occur with a fever and cause shivering or shaking. Your body chills can be constant.

Explanation:

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