which best describes series​

AM and FM are the two types of modulation that an omnidirectional antenna transmit.

An omnidirectional antenna is also referred to as an isotropic antenna and it can be defined as a type of antenna that is designed and developed to radiate equal radio power or intercept radio-frequency (RF), especially in all directions perpendicular to an axis.

In Science, there are two types of modulation that an omnidirectional antenna transmit and this include the following:

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Answer:

none

Explanation:

Answer:

143.6/21.2

=6.773584906

=6.8

Gyroscopic wander can be divided into two categories and these are:

Gyroscopic wander can be defined as a movement of the spin axis (axis of rotation) away from a specific fixed direction.

Based on scientific information and records, there are two main types of gyroscopic wander and these include the following:

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The incandescent lamp will glow quite brightly  in the eyes of the creature because emits less visible light and more infrared light.

The infrared light is a part of the electromagnetic spectrum that is emitted by a hot object.

As such, the incandescent lamp will glow quite brightly  in the eyes of the creature because emits less visible light and more infrared light. The florescent light which does not produce inferred rays will not be visible at all.

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The time taken before the two people will meet is 11 minutes.

The time taken before the two people will meet is calculated from the principle of relative velocity.

(ω₁ + ω₂)t = θ

where:

(1.11 x 10⁻³  + 8.4 x 10⁻³)t = 2π

(9.51 x 10⁻³)t = 2π

t = 2π/9.51 x 10⁻³

t = 660.7 secs

t = 11 mins

Thus, the time taken before the two people will meet is 11 minutes.

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Answer:

The equation for wavelength is λ = v/f

Explanation:

λ is wavelength

v = velocity

f = frequency

Answer:

See below

Explanation:

Each resistor has 6 v applied across it

rememeber

V = IR     then     V/R = I

for the 6 Ω      6 v /6Ω  = 1 amp

for the 3 Ω       6v /3Ω = 2 amp

Answer:

added in picture

Explanation:

added in the picture

Answer:

32400 J

Explanation:

K.E.=(1/2)(200)(18^2)

Answer:

Yes

Explanation:

Average velocity is the ratio of total displacement and time taken for that displacement:

[tex]average \space\ velocity = \frac{displacement}{time}[/tex]

This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

A driver have to stop for a school bus when the red lights are flashing and there is no barrier between his/her vehicle and the bus.

Traffic rules are rules that are expected to follow by the road users for the safety of everyone using the road.

For instance, when the red lights are flashing , it simply means to stop, while the green light means that the vehicle can continue to move, and yellow light means to be at alert to move.

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Answer:

D

Explanation:

The friction force is the weight force times the coefficient of friction. So diving by the coefficient gives you the weight force which is equivalent to the normal force.

The equation that we can used to determine the frictional force using the coefficient of kinetic friction and the normal force is given by the expression : F = u N.

Where N is the normal force by the weight of the body.

Frictional force is a type of force acting on a body to prevents its motion. Hence, the frictional force is always negative. Frictional force acting on an object is making a resistance to the motion of the object.

There are both kinetic frictional force and static frictional force. The coefficient of frictional force is the ratio of the frictional force to the normal force on the object. The normal force on the object is equal to m g that is the force by its own weight.

If u is the coefficient of kinetic friction and N be the normal force acting on the object, then the force of kinetic frictional force F is given by,

F = u N.

Where N = mg.

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The information illustrates that this will likely result in schema distortion.

It should be noted that schema simply means a mental model of an object that includes knowledge, beliefs, and expectations.

In this case, the information illustrates that this will likely result in schema distortion. This led to the missing details.

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The highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.

Entropy is the measure of the degree of disorderliness of a system or degree of randomness of a system.

Entropy of a system increases with increase in randomness of the system or disorderliness of the system.

Thus, the highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.

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Answer:

no way to tell since the ocean surface is moving too violently it's not possible to determine the reflected angle

Answer:

D

Explanation:

PCN was discovered in mold

Opposite attract , this is the magnetic south pole

option (b) ✔

Answer:

B

Explanation:

Opposites attract......so the end of the needle pointing to the North Pole is the South pole of the magnetic needle.

Velocity is directly proportional to wavelength and frequency.

There is direct relationship present between velocity and frequency as well s wavelength. If velocity increases, wavelength and frequency are also increase and vice versa. The higher the speed of a sound, the greater its wavelength for a given frequency.

So we can conclude that Velocity is directly proportional to wavelength and frequency.

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The block will travel 2.038 m before stopping. Newton's third equation of motion is applied in the given problem.

It is a type of opposition force acting on the surface of the body that tries to oppose the motion of the body. its unit is Newton (N).

it is defined as the product of the coefficient of friction and normal reaction.

On resolving the given force and acceleration. Mathematically in the different components and balancing the equation gets.Components in the x-direction.

From Newton's third equation of motion;

v²=u²+2as

0 =u²+2(-a)s

u²=2as

u²=2×(2×μg)s

4.00 m/sec = √2×(2 ×0.2 ×9.81 s

16 = 7.848 s

s = 2.038 m

Hence, the block will travel 2.038 m before stopping.

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The given statement is true ultrasonic cleaners are based on the same principle as echolocation in bats and some other animals.

A physiological method for identifying far-off or unseen items (like prey) using sound waves that the objects reflect back to the source, such as a bat.

High-frequency sound waves are used in ultrasonic cleaning to scour clean objects that are submerged using liquid as a medium.

The cavitation of the solution's molecules is brought on by the high-frequency sound waves, which are generally 40 kHz in frequency.

Although bats have developed an advanced kind of echolocation that allows them to travel and find food in the dark, they have vision that is comparable to that of humans.

Bats use high frequency sound pulses emitted through their mouth or nose and listen for the echoes to achieve echolocation.

It is accurate to say that ultrasonic cleaners work on the same principles as creatures like bats and certain others that use echolocation.

Hence the given statement is true.

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Answer:

1. An object has a mass of 8.0 kilograms. A 2.-newton force displaces the object a distance of 3.0 meters to the east, and then 4.0 meters to the north. What is the total work done on the object? 1)10 J 2) 14 J 3) 28 J 4) 56 J I found the resultant of the two distances, which is 5 m, I used 5 m * 2 N=10 J, but it’s not the answer. 2. A 20-newton block is at rest at the bottom of a frictionless incline, since I can’t show you the diagram, I will describe it. Supposed a right triangle, the vertical height is 3 m, and the base is 4.0 m. Then the hypotenuse is the incline and the block is at the bottom. The question is: How much work must be done against gravity to move the block to the top of the incline? I know that conservative forces are forces for which the work done does not depend on the path taken but only on the initial and final positions. But here I Know I should use 3 m * 20N=60 J. but the thing is it starts from the bottom which is the bottom of the incline, and ends at the top, then it should be the length of the hypotenuse? But if it’s 3 m, then it should have started from left end of the base, not the right end of the base which is the bottom of the incline.

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The velocity of the 2x10^4 kg car just before the collision is 0 m/s.

When two bodies of different masses move together each other and have head on collision, they travel to same or different direction after collision.

The external force is not acting here, so the initial momentum is equal to the final momentum. For inelastic collision, final velocity is the common velocity for both the bodies.

m₁u₁ +m₂u₂ =(m₁ +m₂) v

Substitute the values for m₁ = 1.5 x 10^4 kg, m₂ =2 x 10^4 kg and u₁ =7 m/s, the final velocity is 3m/s/

1.5 x 10^4 x 7+2 x 10^4 x u₂ = (1.5 x 10^4 + 2 x 10^4) x 3

u₂  = 0 m/s

So, the car with mass  2x10^4 kg is stationary.

Thus, the  velocity of the 2x10^4 kg car just before the collision is 0 m/s.

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The magnitude of the magnetic force acting on the charge is 2.34×10⁻³ N.

A magnetic force is the force that act in a magnetic field.

To calculate the magnetic force, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 2

Hence, the magnitude of the magnetic force acting on the charge is 2.34×10⁻³ N.

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In times of reduced visibility or at night white light would display a non-powered canoe or kayak.

In low visibility, lights are the simplest way to stand out. You'll be noticeable for kilometers in the dead of night. You should give slow-moving vessels a considerably bigger head up to your location in conditions of severe rain or fog.

Canoes, kayaks, and rowboats that are under 23 feet in length are likewise subject to the regulations for small sailboats. You must flash a white light when boating between dusk and dawn or during times of reduced visibility so that other boats can notice you in time to avoid a collision.

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What we must know to determine the direction of the magnetic force on a charge are;

The magnetic force is the force of attraction or repulsion that emerges between electrically charged particles since of their movement.

From right hand rule, to determine the direction of the magnetic force on a charge, we must know;

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Answer:

refer to the above attachment

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction. The proton will be subject to a magnetic pull that is directed into the page. Option B is correct.

Hold a current-carrying conductor in your right hand with your thumb pointing in the direction of the current then wrap your fingers around the conductor and orient them in the direction of the magnetic field lines.

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction.

The proton will be subject to a magnetic pull that is directed into the page.

Hence, option B is correct.

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Answer:

A.3.64 m

Explanation:

Because

where ,v=velocity

f=frequency

λ=wave length

Answer:

3.64

Explanation:

the formula is Already provided which is Velocity(m/s)= frequency (HZ) × wavelength

making wavelength stand alone

wavelength= velocity/ frequency

wavelength= 1382/380

wavelength= 3.64

Mira is much bigger than the Sun.

Only very massive stars will go through a supernova stage, causing the outer layer to explode away and the core to collapse in on itself, becoming very dense.