Enter a range of values for x.
a
a
3x-90 930
26
27

Enter A Range Of Values For X.aa3x-90 9302627

Answers

Answer 1

Answer:

32

[tex]3x - 9 + 93 = 180 \\ 3x + 84 = 180 \\ 3x = 180 - 84 \\ = 96 \\ x = \frac{96}{3} \\ x = 32[/tex]

Answer 2

Answer:

the answer is 3 and 34 i just took the quiz


Related Questions

A student that just received their driver’s license decides to buy a new car. He remembers from physics class that heat engines have a thermal efficiency that can be calculated. He asks the car dealer for a car that has a high thermal efficiency rating. The car dealer says he has a car that is 100% efficient.

Which law of thermodynamics best describes why the car cannot be 100% efficient?

Answers

Answer:

Second law of thermodynamics.

Explanation:

The second law of thermodynamics states that: "in all energy exchanges, if there is no energy entering or leaving the system, then it means the potential energy of that particular state will definitely be less than the potential energy it had at it's initial state."

Now, for a car to be 100% efficient, it means that there must be some form of heat transfer to the environment. However, this is a violation of the second law of thermodynamics and as such it can't be 100% efficient.

The law that  best describes why the car cannot be 100% efficient is the second law of thermodynamics.

Thermodynamics is the study of heat. Heat is a form of energy that exists as a result of temperature difference between bodies.

According to the second law of thermodynamics, the conversion of energy  from one form to another is not 100% efficient. As such, the thermal efficiency of the engine can be calculated.

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A portable speaker is switched on. 600 J of energy is transferred from the chemical
store in the battery to the thermal store of surroundings; 250 J by heating and
some by radiation (sound). How much energy is transferred by radiation?​

Answers

Answer:

350 J of energy is transferred by radiation.

Explanation:

Given that,

600 J of energy is transferred from the chemical  store in the battery to the thermal store of surroundings.

Heat energy = 250 J

Sound energy = x

According to the conservation of energy,

600 = 250 +x

x = 600-250

x = 350 J

So, 350 J of energy is transferred by radiation.

Which of the following technologies would produce the most energy in light
waves?
A. Infrared sensor on a DVD player
B. Wireless communications transmitter
C. Microwave industrial drying equipment
D. Compact fluorescent lightbulb

Answers

Answer:

D. Compact fluorescent lightbulb

Explanation:

Compact fluorescent lightbulb

A compact fluorescent light bulb would produce the most energy in light

waves, therefore the correct option is D.

What is electromagnetic radiation?

Electromagnetic radiation is a type of energy radiation produced by the propagation of electromagnetic waves that are produced for natural as well as anthropogenic reasons. This radiation does not need any kind of medium to propagate. The electromagnetic wave has components of light as well as heat in them.

Different kinds of electromagnetic radiation have varied levels of energy for example solar radiation is also a form of electromagnetic radiation and gamma radiation is electromagnetic radiation with very high energy.

Most energy in the form of the light wave is produced by the Compact fluorescent lightbulb, therefore the correct option is D.

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Describe ALL of the energy transformations that are taking place in this process.

Answers

Answer:I think that is false

Explanation:

A surfer paddles to where the waves are sinusoidal with crests 14 m apart. He bobs a vertical distance 3.6 m from trough to crest, which takes 1.5 s. Find the wave speed, & describe the wave.

Answers

Answer:

v = 9.34 m/s

Explanation:

Given that,

The distance between crests, [tex]\lambda=14\ m[/tex]

The vertical distance from trough to crest = 3.6 m

Time taken, t = 1.5 s

The amplitude of wave = vertical distance from trough to crest /2

= 3.6/2

= 1.8 m

The speed of the wave is given by :

[tex]v=f\times \lambda\\\\=\dfrac{\lambda}{T}\\\\=\dfrac{14}{1.5}\\\\=9.34\ m/s[/tex]

So, the speed of the wave is 9.34 m/s.

A solution contained 0.05g of sodium hydroxide in 25 cm3 of water
What is the concentration of the solution in g/dm3?

Answers

Given :

A solution contained 0.05g of sodium hydroxide in 25 cm3 of water.

To Find :

The concentration of the solution in g/dm³.

Solution :

We know, 1 cm = 0.1 dm

So, 1 cm³ = 0.001 dm³

Now, 25 cm³ = 25 × 0.001 dm³

25 cm³ = 0.025 dm³

Now, concentration of the solution in g/dm³ is [tex]\dfrac{0.05\ g}{0.025\ dm^3} = 2 \ g/dm^3[/tex].

Therefore, the concentration of the solution is  2 g/dm³.

23. Give two examples of where dissipation occurs.

Answers

-solar energy into electrical energy inside solar panels

-during photosynthesis, solar energy is converted into chemical energy

A 5kg box is being pulled for a force of 20 n and is sliding with an acceleration of 2 m/s. Find the coefficient of friction

Answers

Answer:

Coefficient of friction = 0.5

Explanation:

Given:

Mass of box = 5 kg

Force applied = 20 N

Acceleration = 2 m/s²

Find:

Coefficient of friction

Computation:

Friction force = Mass x Acceleration.

Friction force =  5 x 2

Friction force = 10 N

Coefficient of friction = Friction force / Force applied

Coefficient of friction = 10 / 20

Coefficient of friction = 0.5

4. A lamp is connected to a 230 V mains supply. A current of 4 A flows through the
lamp for 30 seconds.
4.1 Write down the equation that links charge flow, current, and time. (1 mark)

Answers

Explanation:Example

A 500 W television set is switched on for 4 hours. Calculate the energy transferred.

500 W = 500/1000 = 0.5 kW

energy transferred = power × time

= 0.5 × 4

= 2 kWh

A lamp is connected to a 230 V mains supply. A current of 4 A flows through the lamp for 30 seconds. The energy dissipated is 27600 J.

To find the energy dissipation, the given values are,

Voltage, V = 230 V

Current, I = 4 A

time, t = 30 s

What is energy?

The forms of energy, which prevail, however, all these forms of energy generally come under two basic categories, that is, potential energy and kinetic energy.  

The stored energy and the energy of position are termed potential energy. The motion of waves, molecules, electrons, atoms, and objects is termed kinetic energy.  

The different forms of potential energy are chemical energy, mechanical energy, gravitational energy, and nuclear energy. The different forms of kinetic energy are thermal energy, radiant energy, motion energy, sound, and electrical energy.  

Substituting the given values,

The energy is given by

E = V I t

E = 230 x 4 x 30

E = 27600 J

Thus, the energy dissipated is 27600 J.

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A 10 kg dog runs across the ground and jumps onto an ice-covered pond at 5 m/s. If the force of friction acting on the dog is 8 N, how far will the dog slide before coming to rest?

Answers

Answer:

15.625m

Explanation:

Using the equation of motion

v² = u²+2as

u and v are the initial and final velocities

a is the acceleration

s is the distance

Get the acceleration

According to Newton's second law;

F  = ma

8 = 10a

a = 8/10

a = 0.8m/s²

We are also given

v = 5m/s

u = 0m/s

Substitute into the formula above

v² = u²+2as

5² = 0²+2(0.8)s

25 = 1.6s

s = 25/1.6

s = 15.625m

Hence the dog will cover a distance of 15.625m before coming to rest

2. Which of the following is a unit that is associated with the push or pull of an object on another object?
0 Watt
Newton
O meter
O current

Answers

I am 95% sure the answer is Newton hope this helps (sorry if I’m wrong I’m a little sleep deprived)

What would happen without the sun?


All the planets would be remain in place and orbit in darkness


Life on earth would continue to exist in darkness


All the planets would cease to exist

Answers

Answer:

All the planets would be remain in place and orbit in darkness

Explanation:

I'm assuming the sun didn't go nova, but it would sure kill off all life on Earth!

Have a great weekend!

Answer:

A- did this test :P

Explanation:

Hell it’s due soon??

Answers

Explanation:

don't know don't know don't know

Outward.................

Does a light bulb at a temperature of 2500K produce as white a light as the sun at 6000K

Answers

Answer:

No. ... UV light causes sunburn, whereas visible light does not.

Explanation:

The light energy produced from a light bulb is far low compared to the light energy produced by the sun. The heat energy also greatly differ in both.

What light energy ?

Light energy is a form of energy produced by stars and man made devices. One form of energy can be transformed into other form without destroying the energy.

The source of light and heat energy in stars is nuclear fusion. Fusing of two light nuclei forming a heavy nuclei accompanies the release of tremendous amount of energy.

In a light bulb, the electrical energy is converted to light energy and some energy is lost in the form of heat energy. The light the white light produced by a bulb cannot be as intense as the white lite from sun.

Find more on light energy:

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define monsoon.....? ​

Answers

Answer:

A monsoon is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea

Explanation:

9. A speedboat engine exerts 90000 W of power in moving the boat through the water. The velocity of the boat is 1P = 5 m/s. What force does the engine apply to do this?

P = F x V

Answers

Answer:

it g hope it helps you out

A 100 gram sample of 90 degree water causes the temperature of 100 grams of cold water to rise when the two are mixed. If the starting temperature of the cold water was 30 degrees, what will be the final temperature of the water?

Answers

The final temperature of the water : 60°C

Further explanation

Given

100 g water

t = 90 °C and 30 °C

Required

The final temperature

Solution

Q in = Q out

Q cold water = Q warm water

100 x 4.184 x (90-t)=100 x 4.184 x (t-30)

418.4(90-t)=418.4(t-30)

37656-418.4t=418.4t-12552

50208=836.8t

t = 60°C

Not affected by acids a physical or chemical?

Answers

The answer is chemical , I found it on quizlet

can someone help me please

Answers

Answer:

distance and time

Explanation:

like miles per hour, its the measure of how far something went durind a span of time, hours.

A: How far did she travel?



B: How long did she take?

Answers

A. 60 miles
B. 5 hours

Unless you are looking for slope, in which case the answer is different

convert 2kg into SI unit of force​

Answers

Answer:

19.6133 newton.

...?.......

Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain

Answers

Answer:

it is somewhat frozen

Explanation:

Which of the following is part of the cycle of violence? (Select all that apply)
A. period of calm
B. violent episode
C. making up
D. tension-building

Answers

B,C,D i believe. Hope this help


What might happen if the earth didn't have an atmosphere?
A Everything would go flying off into space.
B.
We wouldn't be able to breathe.
С
The earth's rotation would stop.
D
The seasons would be longer.

Answers

D- the seasons would’ve longshoreman

If the earth didn't have an atmosphere, we wouldn't be able to breathe. So, option B.

The atmosphere serves as a blanket, maintaining Earth's normal temperature. All of the gases required to support life on Earth are present in it. The ozone layer in the atmosphere shields the Earth from dangerous UV radiation.

Infrared radiation from the earth is reflected back to the surface by the lowest layers of the atmosphere. The atmosphere effectively traps the thermal radiation that the planet receives from the sun throughout the day.

The surface of the world would become too cold to support life if the atmosphere weren't present.

To learn more about atmosphere, click:

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How do you calculate the magnitude of a force?

Answers

If the force equals, for instance, 100 Newtons then 0.866 × 100 = 86.6 Newtons. This is the magnitude of the resultant force vector on the object.

Put in order Dead leaves fall onto the ground. Organisms such as earthworms mix decaying matter with sediment. Topsoil is formed. Leaves and dead roots decay and are broken down. Bedrock is weathered into small pieces.

Answers

Bhjshdhdjdhhdhdndhdjdynehenrhf
Dead leaves fall to the ground, leaves and dead roots decay and are broken down, bedrock is weathered into small pieces, organisms mix decaying matter with sediment, topsoil is formed.

Please any one help me

Answers

Answer:

Which one are we supposed to do

Explanation:

Which does energy never do?

it never grows

it never disappears

it never lessens

it never changes
PLZZ answer With THE CHOICES PROVIDED THANKS!!!!

Answers

It never disappears I believe

Select the THREE ways that the parallel-plate capacitor differs from a car battery.


1. battery is capable of continuous current, capacitor is not

2. battery maintains a potential, capacitor does not

3. battery stores chemical energy, capacitor stores electric energy

4. capacitor stores chemical energy, battery stores electric energy

Answers

Answer:

1. battery is capable of continuous current, capacitor is not

2. battery maintains a potential, capacitor does not

3. battery stores chemical energy, capacitor stores electric energy

Explanation:

1. battery is capable of continuous current, capacitor is not

This is because the battery maintains a constant current throughout while the capacitor maintains an exponential decaying current.

2. battery maintains a potential, capacitor does not

This is because, the battery has a potential at its terminal due to its emf whereas, the capacitor needs a potential to be applied to its terminals.

3. battery stores chemical energy, capacitor stores electric energy

This is because, the battery converts chemical energy to electrical energy whereas, the capacitor stores electric energy due to its ability to store electric charge.

Answer

battery stores chemical energy, capacitor stores electric energy

battery maintains a potential, capacitor does not

battery is capable of continuous current, capacitor is not

 

Explanation:

Calculate the force between two objects that have masses of 70 kilograms and 2,000
kilograms separated by a distance of 1 meter.

Answers

Answer:

1. 9.338×10¯⁶ N

2. 5.28×10¯¹⁰ N

Explanation:

1. Determination of the force

Mass of 1st object (M₁) = 70 Kg

Mass of 2nd object (M₂) = 2000 Kg

Distance apart (r) = 1 m

Gravitational constant (G) = 6.67×10¯¹¹ Mm²/Kg²

F = GM₁M₂ / r²

F = 6.67×10¯¹¹ × 70 × 2000 / 1²

F = 6.67×10¯¹¹ × 70 × 2000 / 1

F = 9.338×10¯⁶ N

2. Determination of the force.

Mass of 1st fruit (M₁) = 0.45 Kg

Mass of 2nd fruit (M₂) = 0.45 Kg

Distance apart (r) = sum of their radius = 0.08 + 0.08 = 0.16 m

Gravitational constant (G) = 6.67×10¯¹¹ Mm²/Kg²

F = GM₁M₂ / r²

F = 6.67×10¯¹¹ × 0.45 × 0.45 / 0.16²

F = 6.67×10¯¹¹ × 0.45 × 0.45 / 0.0256

F = 5.28×10¯¹⁰ N

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