Which is a pollutant associated with high-tech gadgets in landfills?
A. Chromium
B. Steel
C. Carbon Dioxide
D. Hydrogen

Answers

Answer 1

Answer:

The answer of this is question is A.

Answer 2

Answer:

A.

Explanation:

sana makatulong po ❤❤


Related Questions

what are the objectives of the tourist for visiting Nepal write in points​

Answers

Answer:

The objectives of the tourist for visiting Nepal are .

It is naturally decorative .Highest mountain ️ of the world mt.everest is situated in Nepal .many rivers are there for rafting .different types of land and climate can be found .many historical , religious and cultural site are present here to visit .

hope it is helpful to you ☺️

The half-life of Cs-137 is 30.2 years. If the initial mass of the sample is 1.00 kg, how much will remain after 151 years?
A.There will be 0.062 kg left after 151 years.
B.There will be 2.000 kg left after 151 years.
C.There will be 0.031 kg left after 151 years.
D.There will be 0.500 kg left after 151 years.

Answers

Answer:can someone help

Explanation:

The time lag between education of a muscle cell and the beginning of contraction is known as the ______

Answers

I think it will be muscle contraction. Hope this helps! Mark brainly please!

Select the correct answer.

Which situation will have the highest resistance?

А. long wire and high temperature

B. short wire and high temperature

C. long wire and cold temperature

D. short wire and low temperature

Answers

C it’s c hope you have a good one

A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also
A.)strong
B.)weak.
C.)at rest.
D.)in motion.

Answers

Answer:a stro

Explanation:

A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also in motion. The correct answer is D) in motion.

What is electromagnetic induction?

When a magnetic field is in motion with respect to a conductor, such as a wire, it induces an electric current in the wire. This is because the changing magnetic field creates a changing electric field around the wire, which causes electrons to flow. The induced electric current is proportional to the rate of change of the magnetic field. This consequence is known as electromagnetic induction.

The strength of the magnetic field does affect the magnitude of the induced electric current, but the magnetic field must be in motion in order to generate an electric current.

A weak magnetic field can still generate an electric current in a wire if it is in motion with respect to the wire.

If a magnetic field is at rest, it will not induce an electric current in a wire. The magnetic field must be in motion in order to generate an electric current.

Thus, the correct answer is D) in motion.

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describe the motion of the box as a result of the forces acting on it.
(picture cuts off right and left measurements- right is 100N, and left is 50N.)​

Answers

The box will move with net force =100-50=50N to the right side

Clay bricks are used as building materials in construction. Do some research on specific heat capacities of brick, concrete, stone etc. and advise on what this means for society.

Answers

Answer:

It means it is the main building block material for society.

Specific heat is the amount of heat energy that causes a unit increase in temperature by required to be added to the unit mass of the substance. It can be measured by the heat capacity of a particular substance. The unit of specific heat is joule/kg/kelvin.

Material Specific heat capacity Thermal conductivity

Clay                1000                                       0.60

stone              1000                                      1.8

brick               800                                       0.73

concrete        1000                                       1.13

Advice on what this means for society:

Thermal interaction in between indoor and outdoor environments regulated by wall components.The structural and thermal properties influence the behavior of building and fabricating the bricks, stone and others. Clay Bricks are durable, and natural of stable value. A modern building must comply with numerous ecological and economic demands.

Learn more about specific heats:

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LITERALLY HELP IMBEGGING YOU GUYS ANYONE IM NEEED HELP

Answers

Explanation:

The energy of a photon is given by :

[tex]E=\dfrac{hc}{\lambda}[/tex]

Where

h is Planck's constant

c is the speed of light

[tex]\lambda[/tex] is wavelength

or

[tex]E=hf[/tex], f is the frequency

Energy is directly proportional to the frequency of an object.

The energy transported by a wave is directly proportional to the square of the amplitude.

What is a Satellite in your own words??
(Science)

Answers

A satellite is a moon, planet or machine that orbits a planet or star.

Answer:

What I think a Satellite is...

Explanation:

A satellite may be a moon, planet or machine that circles a planet or star. For example, Earth could be a satellite since it circles the sun. Moreover, the moon may be a obsequious since it circles Soil. As a rule, the word "satellite" refers to a machine that's propelled into space and moves around Earth or another planet in space.

Please.rate.me.a.five:)

A load uses a current of 5.0 A when it is attached to a 20 V source. What is the resistance of the load?

Answers

Answer: 4.0 ohm

Explanation:

The small piston of a hydraulic lift has an area of 0.20 m2. A car weighing 1200 N sits on a rack mounted on the large piston. The large piston has an area of 0.90 m2. What is the mechanical advantage of the hydraulic lift?

Answers

Answer:

4.5

Explanation:

Given the following

Weight of the car = 1200N (Load)

Let us get the effort by using the formula;

F1/A1 = F2/A2

Substitute the given values

1200/0.9 = F2/0.2

Cross multiply

0.9F2 = 1200 * 0.2

0.9F2 = 240

F2 = 240/0.9

F2 = 266.67N

Hence the effort is 266.67N

Mechanical Advntage = Load/Effort

MA = 1200/266.67

MA = 4.5

Hence he mechanical advantage of the hydraulic lift is 4.5

Does anyone know 19 and 20 ??

Answers

B I think for 19 and D for 20

As distance increases, gravitational force________

Answers

Answer:

Decreases

Explanation:

Answer:

Decreases

ExplanatIon:

After rubbing a rubber brush on wool, Gilbert is able to use the brush to pick up small strips of paper. What causes the paper to be attracted to the brush?
A.) gravity
B.)electric current
C.) static electricity
D.)magnetism

Answers

Static electricity because when you rub something against a surface, there is friction aka static electricity.

After rubbing the a rubber brush on the wool it gets a charge acquired by the passage of electrons. The electrons from the wools escapes to the brush and thus the paper get attracted to electrons in the brush. Hence, option B is correct.

What is electric current?

Electric current is the passage of electrons from the negative end to positive end of a  potential difference.

When a an object is rubbed on a conducting material it gets some electrons into it.  When this material comes in contact with another object which have random distribution of charges will attracts the electrons by its positive end.

The rubber brush gets negatively charged on rubbing.  Paper have positive and negative charges in random. When it comes in contact with the negatively charged brush the electrons in the paper repelled away.

The positive charges thus accumulates on the other end of the paper and attracted to the brush. This is an example of static current. Hence option B is correct.

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doing work alawyas means blank energy​

Answers

Answer:

Transferring energy

Explanation:

Doing work always mean Transferring energy.

Describe the three methods of thermal energy transfer and provide a sketch that depicts each:
Conduction:
Convection:
Radiation:

Answers

Answer:

a)the process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature

b)the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat

c)radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

7. It takes 1 second to hear the reflection of a loud noise made in front of a large barrier. If
the speed of sound in air is 340 m/s, how far away is the barrier?
A. 85 m
B. 170 m
C. 340 m
D. 680 m

Answers

Answer:

C 340 m

Explanation:

may i be marked brainliest?

A periodic wave with wavelength
- 2 m has frequency f = 4 Hz.
What is the wave's speed?

Answers

Answer:

-8m/s

Explanation:

v=wavelength*f=-2*4=-8m/s

In this system, ___________________ energy from the sunlight causes the solar panel to create ___________________ energy which flows into the incandescent light bulb. In the light bulb, the ___________________ energy is transformed into two different types of energy: ___________________ energy and ___________________ energy.

Answers

Answer:

solar, heat,heat, light

In the process of photosynthesis, how do plants obtain the water, carbon dioxide, and energy they use for this process?

Answers

Answer:

They get it from the air and soil. They also take energy from the sun.

Explanation:

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil.

Given equal time periods, which statement about radioactive waste is correct?
A. Radioactive decay and nuclear fission always generate the same amount of waste.
B. Nuclear fusion generates less radioactive waste than radioactive decay does.
C. Nuclear fusion generates less radioactive waste than nuclear fission does.
D. Nuclear fission generates less radioactive waste than radioactive decay does.

Answers

I think the answer is C

I really really really need help with this one question, if answered correctly or attempted will get brainliest :)

For the circuit shown with a 12.0 V battery, what are the currents through each resistor and the voltage drops across each resistor?

Answers

Answer:

i belive it is R 24

Explanation:

may i be marked brainliest?

Which is an example of the cycling of matter from one sphere to another?
A a puddle of water evaporating and rising into the atmosphere
B animals obtaining energy from plants
C heat energy from the sun warming the land
D heat energy from the sun warming the oceans

Answers

D) heat energy from the sun warming the oceans

This is because heating the water causes the water to change states. For example, liquid water turns into water vapor.
D) heat energy

explanation: heating the water causes it to change

Mental health disorders may NOT affect...
O
A person's motivation levels
O
The ability to make decisions
о
A person's memory or ability to make new memories
A person's ability to breathe

Answers

In my opinion, mental health can affect all of these options. However, I think the answer this is looking for would be "A person's ability to breathe"

Mental health definitely affects motivation; and motivation affects mental health. Motivation is a driving force behind human behaviours; its absence can lead to mental illnesses such as depression. Often when someone is depressed, they lack the motivation to do things.

Mental health can affect decision making as well- for example, if someone has anxiety, decision-making can be harder. Anxiety disrupts the decision-making regions in the prefrontal cortex.

Mental health can also affect memory- Depression has been linked to memory problems, such as forgetfulness. Depression is associated with short-term memory loss. Stress and anxiety can also lead to poor memory.

I would say that panic attacks can inhibit a person from breathing, but considering the options I would say that's the best one. Breathing is more of a physical thing, not associated with the brain or mental condition. So the answer is A person's ability to breathe.

Which can cause physical weathering of rock?

A acid
B oxygen
C sun
D wind

Answers

Answer:

D wind

Explanation:

Heavy winds may cause much  damage to the Earth along with rain and extreme temperature changes.

Which example is NOT a part of the electromagnetic spectrum?
Group of answer choices

electricity

microwaves

violet light

radio waves

Answers

Electricity is not apart of it

Which of the following effects results from the interference of two sound
waves that have slightly different frequencies?
A. Beats
B. Intensity
C. Loudness
D. Echoes
SUBMI

Answers

Answer:beats

Explanation:l got it right gang

Beats effects results from the interference of two sound waves that have slightly different frequencies.

What is beats?

Beats are produced by the superposition of two waves of slightly different frequencies but identical amplitudes. The waves alternate in time between constructive interference and destructive interference, giving the resulting wave a time-varying amplitude.

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WILL GIVE BRANLIEST
can you find a magnet with only a north pole? why or why not?

Answers

no you can’t because north and south attract eachother

Find the Y component of 35m/s at 57 degrees from the X-axis.

Answers

Answer:

35m/s[57o].

X = 35*Cos57 =

Y = 35*sin7 =Explanation:

learn man but there u go

The Y component of the velocity 35 m/s is 29.35 m/s.

What is a projectile?

A projectile can be defined as an object upon which experiences only force is gravity. The projectile covers the path with a parabolic trajectory because of the effect of gravity. No horizontal forces act upon projectiles which causes no horizontal acceleration.

The velocity of a projectile is divided into two components one is the horizontal component and the other is the vertical component.

If the projectile makes an angle θ with the X- axis.

The vertical component of the velocity, Vy = Vsinθ

The horizontal component of the velocity, Vx = Vcosθ

Given the angle θ with the X- axis = 57°

The velocity of the projectile V = 35 m/s

Then the vertical or Y component of the velocity, Vy = Vsinθ =

Y component = 35× sin 57°

Vy = 29.35 m/s

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find ways you can change the total energy

Answers

Either make the hill taller to increase it or make the kill lower to decrease the total energy

Answer:

The ways to change the total energy are to either make the hill taller to increase it or make the hill lower to decrease the total energy.

Explanation:

The total mechanical energy of a system is the sum of the total kinetic energy and total potential energy.

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