Canada’s northern territories experience "midnight sun," meaning what?.

False.

Thermal energy is usually transferred in fluids by convection, which is the transfer of heat through the movement of fluids (such as liquids or gases).

What is Thermal Energy?

Thermal energy is the energy that is generated by the movement of atoms or molecules within a substance. It is a form of kinetic energy that is related to the temperature of the substance, and it is transferred from one object to another as a result of a temperature difference.

Convection occurs when a warmer fluid or object is in contact with a cooler fluid or object, causing the warmer fluid to transfer its thermal energy to the cooler one.

Radiation, on the other hand, is the transfer of thermal energy through electromagnetic waves, and it can occur in fluids as well as in solids and gases. However, radiation is generally less efficient in fluids than in solids or gases, and it is not the primary method of thermal energy transfer in fluids.

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Answer:

1.044 m/s^2

Explanation:

Fcosθ - u(mg - Fsinθ) = ma = 185cos28 - 0.3(47.5*9.81 - 185sin28) = 49.61N

a = 1.044

According to René Descartes, machines could not think because they lacked consciousness or a mind. Descartes proposed a dualistic philosophy, which distinguished between the physical body and the immaterial mind or soul. He believed that the mind, or "res cogitans," was responsible for conscious thought, reasoning, and intellect, while the body, or "res extensa," operated mechanically and lacked consciousness.

Descartes argued that thinking and consciousness were unique attributes of human beings and could not be replicated by machines or animals. He claimed that machines, no matter how complex or advanced, were fundamentally different from human beings because they lacked a conscious mind.

Descartes' view became influential in the philosophy of mind and has been subject to debate and criticism over the years. However, his ideas about the distinction between mind and body and the limitations of machines in thinking were significant contributions to the philosophical understanding of cognition and consciousness.

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Answer:

The particles are held rigidly in place by all the other particles around them so they can't slip past one another or move apart. This gives solids a fixed shape and a fixed volume.

Answer:

The truck because it has more weight to slow it down also it's only going 10mph

The Ferrari with less momentum will stop first.

The given parameters:

The momentum of each vehicle is calculated as follows;

P1 = m1v1 = 4535924 x 4.47 = 20,275,580.28 kgm/s

P2 = m2v2 = 1474.175 x 111.76 = 164,753.8 kgm/s

\(Ft = mv\\\\t = \frac{mv}{F}\)

When the same force is applied, the object will less momentum will stop first.

Since the vehicle less momentum will stop first, thus we can conclude that the Ferrari with less momentum will stop first.

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The astronaut exerts a force of approximately 784.8 Newtons on his chair while sitting at rest on the launch pad.

The force that an 80 kg astronaut exerts on his chair while sitting at rest on the launch pad is equal to his weight. This is because, in the absence of any other external forces, the only force acting on the astronaut-chair system is the force of gravity. which is given by:

force = mass x gravity

where the mass is 80 kg and the acceleration due to gravity is approximately 9.81 m/s^2.

Therefore, the force exerted by the astronaut on his chair is:

force = 80 kg x 9.81 m/s^2 = 784.8 N

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Answer:

C (Force)

Explanation:

Cmon we should all know dis

Answer:

force and Jeremy's son has more mass

Explanation:

pushing requires force and the son moves less

Answer:

A net force greater than 0 is the answer

Explanation:

trust

Answer:

b c

Explanation:

Answer:

A)    Net force in the horizontal direction is 19.641 N

B)    Net force in the vertical direction is 20 N

Explanation:

The normal force (20 N) and the weight force (20 N) cancel out.

Next lets find the horizontal and vertical components on the right side of the diagram.

We are given the angle and the hypotenuse.

First lets find the opposite side (vertical component).

\(sin(x)\frac{O}{H}\)

\(O=Hsin(x)\)

\(O=40sin(30)\)

\(O=20\)

Now lets find the adjacent side (horizontal component).

\(cos(x)=\frac{A}{H}\)

\(A=Hcos(x)\)

\(A=40cos(30)\)

\(A=34.641\)

Now we can ignore the 40 N force.

We are left with 1 force in the vertical direction.

So the net force in the vertical direction is 20 N

We are left with 2 forces in the horizontal direction.

We have 1 force of 15 Newtons moving in the left direction.

We also another force of 34.641 Newtons moving to the right.

So the net force in the horizontal direction is 19.641 N.

Answer:

True

Explanation:

A drug like cocaine causes more dopamine to be produced in the brain is True.

Dopamine is a type of neurotransmitter which can be a monoamine. This dopamine will be produced in brain and it acts as a chemical messenger which will be used to communicate messages between the nerve cells in the brain and to the brain and the other parts of the body.

When an individual who takes the drugs such as heroin, nicotine, cocaine and methamphetamine can increases or promotes the neurochemical reaction which will produce or increases the amount of dopamine that is a primary factor which can be the addiction that is secreted by neurons in the brain's reward center.

The functions of the reward center is memory, movement, motivation, mood, attention and more.

The diseases caused by dopamine are higher dopamine levels lead to pleasure in the mind of an addict and it makes people forget the pain or stress and gives immense pleasure.

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Answer: UV rays, either from the sun or from artificial sources like tanning beds, can cause sunburn. Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems.

Explanation: Uv means ultraviolet

Answer:

Radiation is the transfer of heat energy through space by electromagnetic radiation.

Explanation:

Explanation:

Cultural Ecosystem Services (CES) are the non-material benefits people obtain from nature. They include recreation, aesthetic enjoyment, physical and mental health benefits and spiritual experiences. They contribute to a sense of place, foster social cohesion and are essential for human health and well-being.

Answer:

(C) HBr is an acid .......

Answer:

Explanation:

The time taken by the motorcycle to reach the city can be found by using the formula

\(t = \frac{d}{s} \\ \)

d is the distance

s is the speed

From the question

d = 200 miles

s = 70 miles / hour

We have

\(t = \frac{200}{7} \\ = 28.571428 \\ \)

We have the final answer as

Hope this helps you

The average velocity of the particle during the time interval [1,2] is ≈ 15.71 cm/s and during the time interval [1,1.1] is ≈ 0.23 cm/s.

First, we need to find the velocity of the given displacement function. We know that, Velocity of a particle is the rate of change of its displacement with respect to time. Hence, differentiate the displacement function to get velocity.
s = 4sin(πt) + 5cos(πt)Differentiate w.r.t 't' to get velocity.
v = s
'= 4πcos(πt) - 5πsin(πt)
Now, to find the average velocity during the given time period [1, 2],
we need to integrate the velocity function w.r.t 't' between the limits of time [1, 2] and divide it by the total time period.i.e., Average Velocity,
v_avg = ∫ v dt / ∆t
= [ ∫2 14π cos(πt) dt - ∫1 5πsin(πt) dt ] / (2 - 1)
= [ 8π sin(πt) + 5cos(πt) ] 2  - [ 5π sin(πt) ] 1
= 8π sin(2π) + 5cos(2π) - 5πsin(π)≈ 15.71 cm/s(ii) [1, 1.1]
To find the average velocity during the given time period [1, 1.1],
we need to integrate the velocity function w.r.t 't' between the limits of time [1, 1.1] and
divide it by the total time period.
i.e., Average Velocity, v_avg = ∫ v dt / ∆t= ∫1.1 1 (4πcos(πt) - 5πsin(πt)) dt / (1.1 - 1)
= [ 4sin(πt) + 5cos(πt) ] 1.1  -  [ 4sin(πt) + 5cos(πt) ] 1
= [ 4sin(π*1.1) + 5cos(π*1.1) ] - [ 4sin(π) + 5cos(π) ]≈ 0.23 cm/s (approx)
Hence, the average velocity of the particle during the time interval [1,2] is ≈ 15.71 cm/s and during the time interval [1,1.1] is ≈ 0.23 cm/s.

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Answer:

i donk know

Explanation:

A. Tertiary alkyl halide with ethanol, heating and the product is an alkene: Because of the carbocation intermediate this is a E1 reaction.

B. Tertiary alkyl halide treated with potassium terbutoxide in tert butanol and give an alkene: This then, would be an E2 mechanism reaction.

C. A tertiary alkyl halide is treated with ethanol and heating to give an alkene: Because of the carbocation intermediate this is a E1 reaction.

A. According to the explanation, ethanol reacts with a tertiary alkyl halide (a carbon with all bonds other than hydrogen) while being heated. The resultant substance was an alkene.

As a result, the ethanol simply reacts with the electrophyle of the bromide alkyl, in this example, an atom of hydrogen, and the lone pairs then form a double bond to produce the alkene. In this instance, the halide departs the molecule and creates a carbocation intermediate. This reaction is an E1 because of the carbocation intermediate.

B. The only difference between this and example A is that we are working in a basic medium, thus either E2 or Sn2 is the mechanism at play. While the electrophyle of the alkyl halide is subtracted by the tert-butoxide, the lone pairs move down to the molecule, promoting the leaving of the halide to form the alkene. As a result, the ultimate product is also an alkene. A reaction via the E2 mechanism would then be this.

C. is the same as case A so it's a E1 reaction.

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Answer:

repel , attract,l am sure with these two blanks only

Answer:

Magnetic fields

A magnet creates a magnetic field around it. You cannot see a magnetic field, but you can observe its effects. A force is exerted on a magnetic material brought into a magnetic field. The force is a non-contact force because the magnet and the material do not have to touch each other.

The measurement 0.0000043 m, expressed correctly using scientific notation, is 4.3 x 10⁻⁶ m.

Scientific notation is a way to express numbers in the form of "a x 10ⁿ," where "a" is a number between 1 and 10 (excluding 10 itself) and "n" is an integer representing the exponent.

In the given measurement, 0.000 004 3 m, we need to express it using scientific notation. To do this, we move the decimal point to the right until there is only one non-zero digit to the left of the decimal point. This gives us 4.3.

The number of decimal places we moved the decimal point determines the exponent in the scientific notation. In this case, we moved the decimal point six places to the right, so the exponent is -6.

Therefore, the measurement 0.0000043 m, expressed correctly using scientific notation, is 4.3 x 10⁻⁶ m.

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Answer:

Millions of other species, including humans, depend on fresh water to drink. When an area loses a large percentage of its fresh water, many animals die off

Explanation:

No explanation needed because i'm just that good..

Answer:

Water full lands support life more with more diverse species of plants and animals in positive way. As compared to it barren and deserted lands with no or less water are less diverse with few hard living species .

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Answer:

Explanation:

ave speed is always (frequency) x (wavelength)

Speed  =  (450 /sec) x (0.52 m)

=      234 m/sec .

Answer:

∆p.e = mg∆h

Explanation:

Take height reference be h1 while height final be h2.

∆h = (h2 - h1)

m = m

g = g

•°• ∆p.e = mg(h2 - h1)

=> ∆p.e = mg∆h

Answer the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets

I hope it is helpful