What is simple and composite signal?

Answer:

The ruler shall be given to you.

I tried but that's basically how it should look.

Answer:

Explanation:

Kinematic equation: Final velocity^2 = Initial velocity^2 + 2*acceleration*displacement

As the ball is dropped from rest, initial velocity = 0.

Acceleration = gravity = 9.8m/s^2

Displacement = 7m

So velocity just before it hits ground

= sqrt( 2*9.8*7)

= 11.71m/s

Explanation:

Hope this helps,

Juno entered a polar orbit of Jupiter on July 5th 2016 UTC, to begin a scientific investigation of the planet. After completing its mission, Juno will be intentionally deorbited into Jupiters atmosphere. Junos mission is to measure Jupiters composition, gravitational field, magnetic field, and polar magnetosphere.

Answer:

1

3

4

5

or

a

c

d

e

Explanation:

The dura mater forms the tough and fibrous outer sac of the meninges. The meninges are the protective layers that surround the brain and spinal cord. The three layers of the meninges are the dura mater, arachnoid mater, and pia mater.

The dura mater is the thickest and outermost layer of the meninges. It is a fibrous membrane that is attached to the skull and the vertebrae of the spine. The dura mater forms a tough, outer sac that surrounds and protects the brain and spinal cord.

The dura mater is composed of two parts: the outer dura mater and the inner dura mater. The outer dura mater is made up of dense connective tissue that is rich in collagen fibers. It is attached to the skull and the vertebrae of the spine, forming a tough, protective barrier around the brain and spinal cord. The inner dura mater is a thinner layer of connective tissue that is rich in blood vessels and lymphatic vessels. It is also known as the arachnoid mater. The inner dura mater is attached to the outer dura mater, forming a space called the subarachnoid space, which contains cerebrospinal fluid (CSF).

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If a rope is being wound around a drum with radius 4.2m, 52.78m of the rope will be wound around the drum if the drum was rotated 2 full revolutions.

In the question, we are given 2 things, a rope of unknown length and a drum with a radius of 4.2m, and we're told to find the length of the rope that will be wound around the drum if the drum is rotated 2 full revolutions. Since the drum has a radius, we'll assume that the drum is cylindrical in shape. That means that if the rope went around the drum once, the length of the rope that will have been used up is equal to the perimeter of the cross section of the drum, or in other words, the circumference of the drum. Since it's a cylindrical drum, the circumference will be:

                         C = 2πr

where: r is the radius of the drum

           C is the circumference of the drum

Hence, the length of the rope that was wound round the drum when it made one revolution is:

       L = 2 x 3.142 x 4.2m

       L = 26.39m

However, we are told in the question that the drum made 2 full revolutions. Hence, we multiply L by 2:

         total length of rope = 26.39 x 2 = 52.78m

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Answer:

this happens when the input force is greater than the output force

HOPE IT HELPED YOU...

Answer:

False

Explanation:

Larger pulse with more energy means that the wave has large amplitude. As in the given question, both the waves are travelling in the same medium, hence their speeds will remain same and therefore the larger pulse will not overtake the smaller pulse. Remember the amplitude of a wave does not affect the speed at which the wave travels

Answer:

False

Explanation:

The amplitude of a wave does not affect the speed at which the wave travels.  The speed of a wave is only altered by alterations in the properties of the medium through which it travels.

Answer:

True

Explanation:

an object in motion stays in motion unless acted upon by another force

Answer/Explanation:

True. A force is what causes a movement in the first place. In order for an object to change motion a different force must be applied such as its opposing force.

Natural force: Thrust

Opposing force is drag.

Other forces are gravity and lift.

The opposing force will reverse the motions direction, the other forces will just change the direction without reversing.

The statement that correctly describes the direction of conventional current in the circuit is : ( C ) current is directed from A to B to C to D

conventioanl current is simply the flow of protons from the positive terminal of the voltage source ( battery ) to the negative terminal of the battery. Also conventional current is the charge transferred in a given direction per unit time. for a conventional current the charge carrier is irrelevant.

Hence we can conclude that the direction of conventional current in the circuit is : current is directed from A to B to C to D.

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Attached below is the missing part of the question

Greywater is wastewater that comes from domestic sources, such as sinks, showers, baths, washing machines or dishwashers, except toilets. Blackwater is wastewater that contains fecal matter and urine, such as from flush toilets. Greywater is generally safer and easier to treat and reuse than blackwater, but some sources of greywater should be treated as blackwater due to health risks. One example is wastewater from kitchen sinks, which can contain high levels of organic matter, grease, and pathogens from food preparation and disposal. Therefore, wastewater from kitchen sinks is technically considered greywater but should be treated as blackwater.

Blackwater is wastewater originating from biological waste such as latrines, in the form of human feces, as well as other wastes in the form of liquids or other biological wastes carried by household waste water used for washing dishes, as well as liquid waste from the kitchen.

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Answer:

0.5kg

Explanation:

Using formula f=ma,

6N=mx12m/s^2

6N/(12m/s^2)=m

0.5kg=m

Kinetic energy= 1/2 mv²

= 1/2 ×12×4

=24 J

When earth catches up to a slower-moving outer planet and passes it in its orbit, in the same way that a faster runner overtakes a slower runner in an outside lane, the outer planet exhibits a retrograde motion

When a planet is far from another planet and observed from it, it rotates at a slower rate, making it appear that it is "retrograding" with regard to the other planet.

Early astronomers were perplexed when they observed motion in the sky because they attempted to explain it in terms of the geocentric idea.

Due to their commitment to the geocentrical paradigm, which stated the Earth was the center of the solar system, early astronomers were perplexed and unable to explain the phenomena.

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list of the cumulative 10 m split times in seconds) for Mary J. at the US College Nationals ,Mary's average speed for the final 40m was 8.55 m/s.

To calculate Mary's average speed for the final 40m, we first need to calculate the total time she took to cover the distance from 60-100m. To do this, we add the split times for the 60m and 100m (6.69s and 10.21s, respectively) and subtract the split times for the 50m and 90m marks (5.79s and 9.33s, respectively), which gives us a total time of 4.79s for the final 40m. We then divide the distance of 40m by the time of 4.79s to get Mary's average speed, which is approximately 8.55 m/s.

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Unless the above assumptions are clear, the initial and final energies are equal.

Kinetic energy is the form of energy that an object or a particle possess due to its motion. If work, that transfers energy, is done on an object by applying a net force, the object accelerates and thereby gains kinetic energy. Kinetic energy is a property of a moving object or particle and depends on its motion as well as its mass. The type of motion may be translational (or motion along a path from one place to another), rotational, vibrational, or any combination of motions. Translational kinetic energy is one-half the product of its mass (m) and the square of its velocity (v) or 1/2mv².

Given,

Initial and final velocities = v₁ and v₂

Initial kinetic energy = \(\frac{1}{2} mv_{1} ^{2}\)

Final kinetic energy = \(\frac{1}{2} mv_{2} ^{2}\)

Gravitational potential energy is calculated = mgh

As the assumptions are not clear, this question assumes no air resistance. As a result, no energy is consumed by work.

then

Initial Kinetic Energy = Final Kinetic Energy

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7.695 * 106. is the correct number of significant numbers.

In positional notation, significant figures refer to the digits in a number that are trustworthy and required to denote the amount of something, also known as the significant digits, accuracy, or resolution.

Only the digits allowed by the measurement resolution are dependable, hence only these can be important figures if a number expressing the outcome of a measurement (such as length, pressure, volume, or mass) has more digits than the number of digits allowed by the measurement resolution.

The first three digits (1, 1 and 4, displaying 114 mm) are certain, thus they are utilized in calculations.

Therefore, 7.695 * 106. is the correct number of significant numbers.

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Out of the given equations,

241Am 23Np + 4He

18F → 180+ °C

14C → 14N+_e

152 Dy → 15. Dy+y

The first equation shows the alpha decay which is ₉₅Am²²⁴ →  ₉₃Np²³⁷ + ₂He⁴

Alpha particles are emitted in the form of radiations when radioactive decay occurs.  The atom of heavy nucleus emit the alpha particles that consist of two proton and two neutrons, also called helium nuclei.

The properties of alpha radiations are:

The Americium with atomic weight  224 undergo alpha decay and produce ₉₃Np²³⁷ . The alpha particle is helium nuclei.

₉₅Am²²⁴   →    ₉₃Np²³⁷ + ₂He⁴

Thus, the first equation represents alpha radiation.

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Answer:

The correct option is (a): the reflected ray never intersects.

Explanation:

The coordination number of a metal ion refers to the number of ligands surrounding the metal ion in a complex. In the case of [Cr(H2O)6]3+, the metal ion is Cr3+ (chromium with a 3+ charge), and it is surrounded by six water (H2O) ligands.

Each water molecule (H2O) acts as a ligand, meaning it donates a pair of electrons to form a coordinate bond with the central metal ion. Since there are six water molecules bonded to the Cr3+ ion, the coordination number is 6.

Therefore, the coordination number of the metal ion in [Cr(H2O)6]3+ is 6.

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The energy of the photon emitted when the harmonic oscillator drops from energy level 8 to energy level 3 is approximately 2.29 × 10^(-19) joules.

The energy of a photon emitted by a harmonic oscillator can be calculated using the formula E = hf, where E represents energy, h is Planck's constant (6.626 × 10^(-34) joule-seconds), and f is the frequency of the emitted photon. In the case of a harmonic oscillator, the frequency can be determined using the relation f = (1 / 2π) * √(k / m), where k is the stiffness of the oscillator and m is the mass.

By substituting the given values of the stiffness (31 N/m) and mass (6.5 × 10^(-26) kg) into the equation, we can calculate the frequency. Then, using the frequency and Planck's constant, we can determine the energy of the emitted photon.

Understanding the energy of emitted photons in harmonic oscillators provides insights into the quantized nature of energy levels and the relationship between energy and frequency in quantum systems.

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The energy (in eV) absorbed by the hydrogenic ion can be calculated using the formula. So, the hydrogenic ion with Z = 22 must absorb 6435.2 eV of energy when excited from its ground state to the state with n = 7

E = -13.6 * Z^2 * (1/n^2 - 1/n'^2)
where Z is the atomic number, n is the initial energy level, and n' is the final energy level.
Plugging in Z = 22, n = 1, and n' = 7, we get:
E = -13.6 * 22^2 * (1/1^2 - 1/7^2) = 21648.57 eV
Rounding to one decimal place, the energy absorbed by the ion is:
21648.6 eV

To calculate the energy absorbed by a hydrogenic ion with Z = 22 when excited from its ground state to the state with n = 7, we can use the formula for the energy difference between two levels in a hydrogenic ion:
ΔE = 13.6 eV * Z^2 * (1/n1^2 - 1/n2^2)
In this case, Z = 22, n1 (ground state) = 1, and n2 (excited state) = 7. Plugging these values into the formula:
ΔE = 13.6 eV * (22)^2 * (1/1^2 - 1/7^2)
ΔE = 13.6 eV * 484 * (1 - 1/49)
ΔE = 13.6 eV * 484 * (48/49)
ΔE = 6585.6 eV * (48/49)
ΔE = 6435.2 eV
So, the hydrogenic ion with Z = 22 must absorb 6435.2 eV of energy when excited from its ground state to the state with n = 7. To present the answer with one decimal place, we have:
Your answer: 6435.2 eV

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True, at any instant, the rate of increase of momentum of a liquid-fuels rocket is given by Mdv/dt, where M is the current mass of the rocket and v is the velocity.

This expression represents the rate of change of momentum with respect to time and is related to the rocket's propulsion force.

The force that is used by the rocket to take off from the ground and into the atmosphere. The principle on which the rocket propulsion works is based on Newton's third law of motion. Here, the fuel is forcibly ejected from the exit such that an equal and opposite reaction occurs.

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Answer:

hhuuufuhrhuuuryheu7uhhehfu

Answer:

During the evening, the land cools off more quickly than the water. The cooler land cools the air above it, while the warmer water warms the air above it. These differences in air temperature create the convection.

Explanation:

sorry I took forever

Answer:

D. attraction

Answer:

attraction

Explanation:

gravity attracts, electromagnetic force can attract, and both strong and weak nuclear forces hold together an atom, attracting at some points

edge2020

Radio waves are a type of electromagnetic radiation with a long wavelength and low frequency. They are used for a variety of purposes, including Broadcasting, Telecommunications and Navigation.

Broadcasting: Radio waves are used to transmit audio and video signals for radio and television broadcasting

Telecommunications: Radio waves are used for a variety of telecommunications applications, including cellular phones, walkie-talkies, and satellite communications.

Navigation: Radio waves are used for a variety of navigation applications, including radar, GPS, and radio beacons.

Remote control: Radio waves are used to control a variety of devices, including toys, appliances, and industrial equipment.

Scientific research: Radio waves are used for a variety of scientific research applications, including astronomy, meteorology, and medical imaging.

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Therefore, the cost of using the vacuum cleaner for 2 hours on a 120 V circuit is $0.3.

To calculate the cost of using the vacuum cleaner, we need to consider the power rating, the time it is operated, and the cost of electricity.
First, let's calculate the energy consumed by the vacuum cleaner. The power rating is given as 1500 watts, and it is operated for 2 hours. So, the energy consumed is:
Energy = Power × Time
Energy = 1500 watts × 2 hours = 3000 watt-hours (Wh)
To convert watt-hours to kilowatt-hours (kWh), we divide by 1000:
Energy = 3000 Wh ÷ 1000 = 3 kWh
Next, let's calculate the cost of using the vacuum cleaner.

The cost of electricity is given as $0.1 per kWh.

So, the cost can be calculated as:
Cost = Energy × Cost per kWh
Cost = 3 kWh × $0.1/kWh = $0.3
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