PLZ HELP WILL MARK BRAINLEST
Which group benefits most from information being transmitted by electromagnetic waves over cable networks?

A. People who use radios to listen to music

B. People who live far from a transmitting antenna

C. People who live close to cell phone base stations

D. People who have easy access to Wi-Fi​

The magnetic fields are strongest near the ends of a bar magnet.(C)

This is because the magnetic field lines are more concentrated and closer together at the ends, where they emerge or converge. At the center of the magnet, the magnetic field is weaker because the field lines are more spread out and less concentrated.

Similarly, the top and bottom of the magnet have weaker magnetic fields compared to the ends. This is because the field lines emerge or converge from the ends and are perpendicular to the top and bottom surfaces, causing the field to be weaker in those areas.

Understanding where the magnetic fields are strongest and weakest is important in many applications, such as designing magnetic sensors, motors, and generators.(C)

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The final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

To find the velocity of the combined mass of the fullback and the two linebackers, we need to use the principle of conservation of momentum. This principle states that the total momentum of an isolated system remains constant if no external forces act on it.

First, we need to find the initial momentum of the fullback by multiplying his mass (90 kg) by his velocity (5.0 m/s):

Initial momentum of fullback = 90 kg * 5.0 m/s = 450 kg m/s

Next, we need to find the initial momentum of the two linebackers by multiplying each of their masses by their velocities:

Initial momentum of first linebacker = 73 kg * 3.0 m/s = 219 kg m/s

Initial momentum of second linebacker = 73 kg * 4.0 m/s = 292 kg m/s

Now, we need to add the initial momentum of the three individuals to find the total initial momentum:

Total initial momentum = 450 kg m/s + 219 kg m/s + 292 kg m/s = 961 kg m/s

Since the final velocity of the combined mass is going to be the same as the initial momentum, we can say:

Final velocity = 961 kg m/s / (90 kg + 73 kg + 73 kg) = 961 kg m/s / 236 kg = 4.09 m/s

Therefore, the final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

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Both ΔvAB and ΔvBC are equal to a * 1.5 s, where 'a' is the constant acceleration of the ball as it moves down the ramp.

Based on the given information, we can determine the changes in velocity of the ball between different time intervals on the ramp.

Let's denote the velocity of the ball at time tA as vA, at time tB as vB, and at time tC as vC.

Since the ball is released from rest at the top of the ramp, its initial velocity vA = 0 m/s.

Using the kinematic equation for constant acceleration:

v = v0 + at

where:

We can rearrange the equation to solve for acceleration a:

a = (v - v0) / t

For the time interval between tA and tB:

ΔvAB = vB - vA = a * (tB - tA)

For the time interval between tB and tC:

ΔvBC = vC - vB = a * (tC - tB)

Given the time values:

tA = 1.5 s

tB = 3.0 s

tC = 4.5 s

We can use these time values to calculate the changes in velocity:

ΔvAB = vB - vA = a * (tB - tA) = a * (3.0 s - 1.5 s) = a * 1.5 s

ΔvBC = vC - vB = a * (tC - tB) = a * (4.5 s - 3.0 s) = a * 1.5 s

So, both ΔvAB and ΔvBC are equal to a * 1.5 s, where 'a' is the constant acceleration of the ball as it moves down the ramp. The value of 'a' would need to be determined using additional information or experimental measurements.

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Making a conical motion with limb as drawing a circle is called the humerus.

Humerus is the largest bone in the arm and the only bone in the upper arm. Movement of the humerus is essential for all varied activities. Humerus is the only bone in the upper arm. This bone has many uses because it is directly related to the human hand, which plays a very important role for humans.

From the statement above, we get various important information. Mandible is the lower jawbone which is the largest and strongest bone in the facial area. This bone is useful for helping humans in chewing food, speaking, and other activities that require the use of the lower jaw.

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The tension in each of the three cables lifting the square steel plate is 5,529.6 N.

To calculate the tension in each cable, we consider the equilibrium of forces acting on the plate. The weight of the plate is balanced by the upward tension forces in the cables. By applying Newton's second law, we can set up an equation where the total upward force (3T) is equal to the weight of the plate. Solving for T, we divide the weight by 3 to find the tension in each cable. Substituting the given mass of the plate and the acceleration due to gravity, we calculate the tension to be 5,529.6 N. This means that each cable must exert a tension of 5,529.6 N to lift the plate while keeping it horizontal.

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Answer:

they are membrane proteins

Answer:

Cannot be determined from the given information

Explanation:

Given the following data;

Velocity = 24 m/s

Period = 3 seconds

To find the amplitude of the wave;

Mathematically, the amplitude of a wave is given by the formula;

x = Asin(ωt + ϕ)

Where;

x is displacement of the wave measured in meters.

A is the amplitude.

ω is the angular frequency measured in rad/s.

t is the time period measured in seconds.

ϕ is the phase angle.

Hence, the information provided in this exercise isn't sufficient to find the amplitude of the waveform.

However, the given parameters can be used to calculate the frequency and wavelength of the wave.

Answer:

The correct option is;

d) All of the above

Explanation:

a) In an electric circuit through which electric current flows, it is due to the electric charges which can be the negatively charged electrons or the positively charged protons

b) Voltage is the potential difference that results in current flowing through the circuit, therefore, the voltage is applied across the circuit through which current flows

c) The voltage which is the electric potential difference is the change in potential energy in joules of a given system due to the movement of a test charge (in Coulombs) between points in the electric field, ΔE, divided by the value of the test charge, 'q'

V = ΔE/q

Therefore, all of the above are correct.

Answer:

This was my best estimation of the answers

Answer:

11.0 m/s

Explanation:

a = (Vf - Vi) / t

Vf = at + Vi = (1.5 m/s²)(4.0 s) + 5.0 m/s = 11.0 m/s

Answer: Food chain: cheese a product of the sun.

Explanation:

Food chain: The energy taken from the sun through photosynthesis enables plants to exist and grow.

The animal like cow takes chemical energy from plants by eating plants product.

The cow is able to produce the milk because of the energy that has been taken from the plant.

Since the cheese came out from the milk, we can therefore conclude that the food is initially a product of the sun.

Answer: The charge that flows through the wire in 60 s is 14.87 C.

Explanation: The charge that flows through the wire in 60 s can be calculated using the formula:

Charge = Current x Time

The current can be calculated using Ohm’s law:

Current = Voltage / Resistance

Substituting the given values:

Current = 3.00 V / 12.1 Ohms = 0.2479 A

Charge = 0.2479 A x 60 s = 14.87 C

Hope this helps, and have a great day! =)

Answer: its b because  as soon as you go far away from light it get red and dents

Explanation:

Answer:

2 1 3

Explanation:

Answer:

the answer is 3,1,2

edg2020

Explanation:

Answer:

C. -6.1 m/s2

Explanation:

a = (vf - vi) / t = (15 m/s - 29 m/s) / 2.3 s = -6.1 m/s2

You are decelerating (slowing down);  value is negative

Any external event that occurs between the first and second measurement period but is not part of the manipulation is referred to as an extraneous effect.

When we are conducting research experiments, we need to take care of any external event that occurs between the first and second measurement period but is not part of the manipulation. Such external events can lead to changes in the outcome that are not related to the manipulation or treatment.

The effects of such extraneous events can affect the outcome in a significant way that can lead to misinterpretation of the data. Therefore, it is essential to take care of any extraneous effect when conducting research experiments.

Extraneous is a term used to describe any variable or factor that is not part of the manipulation but can still affect the outcome. It is important to control or account for extraneous variables in order to ensure that the results of an experiment are valid and reliable.

A common way to control for extraneous variables is through random assignment of subjects to experimental and control groups.

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The order of magnitude of the electric field needed to produce a separation of the electron cloud from the nucleus of a Hydrogen atom that is two orders of magnitude smaller than the diameter of a hydrogen atom is 10¹¹ N/C.

The dipole moment p induced in a molecule in an electric field is proportional to the electric field E and the polarizability α of the molecule, i.e.,p = αE

The dipole moment of a hydrogen atom in an electric field E is given byp = αE

where α = 1.310^-30 C.m/V or 1.310^-40 C.m/N and E is the electric field.

Now, the diameter of a hydrogen atom is about 10^-10 m. If the separation of the electron cloud from the nucleus of a hydrogen atom is two orders of magnitude smaller than the diameter of a hydrogen atom, then it is about 10^-12 m.

In order to find the electric field required to produce this separation, we equate the dipole moment to the electric charge e times the distance of separation d.

Hence, αE = ed

E = ed/α

E = e × 10^-12 / 1.310^-40

E = (e × 1.310^28) / 10¹⁰

E = 1.6 × 10¹⁹ / 10¹⁰

E = 10¹¹ N/C

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Answer:

the length of the cannon

the power of the gunpowder

Answer:

i would say B decrease mass of cannon or decrease mass of cannon ball

Explanation:

because when you fire the cannon the cannon ball and powder exit the cannon then that leaves the cannon ball and i would say that the explosion would force it out the cannon but would not increase its mass.

Zero work is done when the force and the displacement are perpendicular to each other. In other words, if the angle between the force vector and the displacement vector is 90 degrees, then the work done is zero.

Work in physics is defined as the product of the force applied on an object and the displacement of the object in the direction of the force. Mathematically, work (W) is given by the equation.

W = F * d * cos(theta)

where F is the magnitude of the force applied, d is the magnitude of the displacement, and theta is the angle between the force vector and the displacement vector.

When the angle theta between the force and the displacement is 90 degrees (perpendicular), the cosine of 90 degrees is zero. Therefore, the term cos(theta) becomes zero, and as a result, the work done is zero.

In this scenario, even though forces are being exerted or a body is moving, the forces are not contributing to the displacement of the object in the direction of the force. The force and the displacement are acting in different directions, and their vector components perpendicular to each other cancel each other out.

For example, when you push a book horizontally along a tabletop with a constant force, the displacement of the book is in the horizontal direction, while the force you exert is perpendicular to the displacement (vertical). As a result, no work is done on the book by your pushing force.

Therefore, zero work is done when the force and the displacement are perpendicular to each other.

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When an airplane turns, it needs to bank or tilt in order to change its direction of flight. This is necessary because of the way in which lift is generated by the wings of the airplane.

The wings of an airplane are designed to create lift by directing airflow over the curved upper surface of the wing. As the air flows over the wing, it creates an area of low pressure above the wing and an area of high pressure below the wing. The difference in pressure between the top and bottom of the wing creates an upward force that helps to lift the airplane off the ground and keep it in the air.

When an airplane banks or tilts, it changes the angle of attack of the wings with respect to the oncoming airflow.

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B. Vesicle does NOT describe a structural feature of a volcano.

A vent, fissure, and magma chamber are all structural features, while a vesicle refers to a small cavity in volcanic rock, formed by trapped gas bubbles during the solidification of lava. A vent is an opening in the Earth's surface that allows volcanic material to escape. A fissure is a large crack in the Earth's surface that allows lava to flow. A magma chamber is a large underground reservoir containing molten rock. A vesicle is an air pocket inside rocks formed by the expansion of gases during volcanic eruptions.

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a. The angular speed of the rotating nylon line is 314.16 radians per minute.

b. The linear speed of a point on the tip of the line is approximately 2617 inches per minute.

The angular speed of the rotating nylon line can be determined by converting the rotational speed from revolutions per minute (rpm) to radians per minute.

Since one revolution is equal to 2π radians, the angular speed is calculated as 3000 rpm multiplied by 2π, resulting in approximately 314.16 radians per minute.

To find the linear speed of a point on the tip of the line, we need to multiply the angular speed by the radius of the circular path. Given that the line is 5 inches long, the radius is half of that, or 2.5 inches.

The linear speed can be obtained by multiplying the angular speed of 314.16 radians per minute by the radius of 2.5 inches, resulting in approximately 785.4 inches per minute.

Rounding to the nearest inch per minute, the linear speed of a point on the tip of the line is approximately 2617 inches per minute.

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Answer:

14 mseckjhbuyfnnxdjbyfuvtfhchn

Given information: The average method reports the following unit data for the forming department. Units completed in the forming department are transferred to the painting department. Production cost information for the forming department follows.

Direct materials:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Direct materials cost = $202,500

Conversion costs:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Conversion cost = $189,000

a. Calculation of equivalent units of production for both direct materials and conversion for the forming department:
Equivalent units of production = Units completed during the period + (Ending work in process inventory * Degree of completion)
Direct materials:
Equivalent units of production = 45,000 + (5,000 * 50%) = 47,500 units

Conversion costs:
Equivalent units of production = 45,000 + (5,000 * 60%) = 48,000 units

b. Calculation of the cost per equivalent unit of production for both direct materials and conversion for the forming department:
Cost per equivalent unit of production = Total cost for the period / Equivalent units of production

Direct materials:
Cost per equivalent unit of production = $202,500 / 47,500 units = $4.26 per unit

Conversion costs:
Cost per equivalent unit of production = $189,000 / 48,000 units = $3.94 per unit

c. Calculation of the cost assigned to the forming department's output using the weighted average method:
Total cost = Cost of units transferred out + Cost of ending work in process inventory
Cost of units transferred out = Number of units transferred out * Cost per equivalent unit of production
Cost of ending work in process inventory = Number of units in ending work in process inventory * Cost per equivalent unit of production

Direct materials:
Cost of units transferred out = 40,000 * $4.26 per unit = $170,400
Cost of ending work in process inventory = 5,000 * $4.26 per unit = $21,300
Total cost = $170,400 + $21,300 = $191,700

Conversion costs:
Cost of units transferred out = 40,000 * $3.94 per unit = $157,600
Cost of ending work in process inventory = 5,000 * $3.94 per unit = $19,700
Total cost = $157,600 + $19,700 = $177,300

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Answer:

yes it is a reactant

Answer:

Florida is situated closer to the Tropic of Cancer, which receives more constant and direct rays of the sun.

Explanation:

Took the test got it right C

Part A: To calculate the magnitude of the current in the 30-ohm resistor in the figure, we need to apply Ohm's Law, which states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

The voltage across the resistor is given as 6 volts (from the battery) and the resistance of the resistor is 30 ohms. Therefore, the magnitude of the current can be calculated as: Current (I) = Voltage (V) / Resistance (R) = 6V / 30Ω = 0.2 Amperes. So, the magnitude of the current in the 30-ohm resistor is 0.2 Amperes. Part B: To determine the direction of the current, we need to apply Kirchhoff's Current Law (KCL), which states that the algebraic sum of the currents entering and leaving any node in a circuit must be zero. In the given circuit, we can see that the current flowing through the 30-ohm resistor is leaving the node and entering into the negative terminal of the battery. Therefore, the direction of the current in the 30-ohm resistor is from left to right.

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(a) Angular speed of the saw blade in radians per minute is:

(b) The linear speed (in feet per minute) of one of the 24 cutting teeth as they contact the wood being cut is 286.68 ft/min.

Angular speed formula is used to calculate the distance that the body covers in terms of rotations or revolutions to the time taken.

The angular speed of the saw blade in radians per minute is calculated as 785.39 rad/min.   (b) linear speed of one of the cutting teeth in feet per minute is 286.68 ft/min

(a) Given,  4,500 revolutions per minute

rad/min = RPM * 2 * pi / 60

So, angular speed of the saw blade in radians per minute is:

rad/min = 4,500 * 2 * pi / 60 = 785.39 rad/min (rounded to two decimal places)

(b) Given, 24 cutting teeth. Circumference of a circle is given by the formula: C = 2 * pi * r

r is radius of the circle.

linear speed (v) is given by the formula: v = r * w

w is angular speed in radians per second.

So, you can find linear speed of one of the cutting teeth in feet per minute as: r = (8 3/4 inches) / 2 = 4.375 inches

C = 2 * pi * 4.375 inches = 27.54 inches

w = 785.39 rad/min

v = r * w = 4.375 inches * 785.39 rad/min = 3440.21 inches/min

3440.21 inches/min = 286.68 ft/min

So, linear speed of one of the cutting teeth in feet per minute is 286.68 ft/min.

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