Which statement does not describe a characteristic of a good outline?
A.
It supports the thesis.
B.
It establishes the order and relationship of the main points.
C.
It details differences between the major and minor points.
D.
It indicates the number of paragraphs needed for each section.

D. 101.96 grams. Molar mass of Al2O3=2× Atomic mass of aluminium + 3× atomic mass of oxygen. =2×27+3×16=54+48=102g.

Sodium aluminate and water are produced when aluminum oxide Al 2 O 3 interacts with sodium hydroxide solution.Between 900 and 1100 ° C is the temperature at which this reaction occurs.Aluminum oxide functions as just an acid in this reaction.

Bauxite is the name of the aluminum ore (Al 2O 3).Bauxite is refined to create aluminum oxide, commonly known as alumina, which can be used to extract aluminum.Electrolysis is used to remove the metal, but first the aluminum oxide must be heated in order for electricity to flow through it.

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Answer:  The CORRECT Answer is :    203.92 grams

Explanation:         I took the test

Answer:

renewable energy is cleaner

Explanation:

Renewable energy is cleaner differs from non renewable resources.

"A renewable resource, also known as a flow resource, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale."

"A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. An example is carbon-based fossil fuels. The original organic matter, with the aid of heat and pressure, becomes a fuel such as oil or gas"

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Answer:

h = 20 m

Explanation:

Gravitational Potential Energy

Gravitational potential energy (GPE) is the energy stored in an object due to its vertical position or height in a gravitational field.

It can be calculated with the equation:

U=m.g.h

Where m is the mass of the object, h is the height with respect to a fixed reference, and g is the acceleration of gravity or [tex]9.8 m/s^2[/tex].

The weight of an object of mass m is:

W = m.g

Thus, the GPE is:

U=W.h

Solving for h:

[tex]\displaystyle h=\frac{U}{W}[/tex]

The weight of the owl is W=40 N and its GPE is U=800 J.

[tex]\displaystyle h=\frac{800}{40}=20[/tex]

h = 20 m

Answer:

Satellites don't fall from the sky because they are orbiting Earth. Even when satellites are thousands of miles away, Earth's gravity still tugs on them. Gravity--combined with the satellite's momentum from its launch into space--cause the satellite go into orbit above Earth, instead of falling back down to the groundv

Explanation:

Answer:

F = 69.5 [N]

Explanation:

We must remember that the friction force is defined as the product of the normal force by the coefficient of friction, and it can be calculated by the following expression.

[tex]f=N*miu[/tex]

where:

N = normal force [N]

miu = friction coefficient

f = friction force = 22 [N]

Now we must calculate the force exerted by means of Newton's second law which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

[tex]F - f = m*a[/tex]

where:

F = force exerted [N]

f = friction force [N]

m = mass = 95 [kg]

a = acceleration = 0.5 [m/s²]

Now replacing:

[tex]F - 22 = 95*0.5\\F = 47.5 + 22\\F = 69.5 [N][/tex]

Option B. An electric motor uses electrical energy to produce mechanical energy.

An electric motor is used to transform electric electricity into mechanical power. An electric-powered motor is an electrical device that converts electric energy into mechanical electricity.

Maximum electric-powered motors operate thru the interaction among the motor's magnetic field and electric-powered contemporary in a wire winding to generate force inside the form of torque implemented on the motor's shaft.

Electric motors are devices that convert electrical strength into mechanical power, commonly in the form of rotational motion. In easy terms, they may be devices that use electric powered power to generate reason strength.

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Lets calculate the initial speed of the block. We know that kinetic energy is given by:

[tex]K_0 =\dfrac{mv_0^2}{2}[/tex]

Solving for v₀:

[tex]v_0 = \sqrt{ \dfrac{2K_0}{m}} = \sqrt{ \dfrac{2(2\;J)}{1\;kg}} = 2\;m/s[/tex]

If the speed after it hits a wall is half its original speed then:

v = v₀/2 = 2 m/s / 2 = 1 m/s

Then the kinetic energy at this point is:

[tex]K =\dfrac{mv^2}{2} = \dfrac{(1\;kg)(1\;m/s)^2}{2} = \dfrac{1}{2}\;J = 0.5\;J[/tex]

The inetic energy of this object at this point is 0.5 J.

Answer:

Answer: B. 84 m/s

Explanation:

Uniform Speed Motion

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time thus, the acceleration is constant.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the final speed is calculated as follows:

[tex]v_f=v_o+at[/tex]

The golf ball starts with an initial speed of 100 m/s and slows down at a=-8\ m/s^2. We are required to find the final speed at t=2 s:

[tex]v_f=100-8*2=100-16[/tex]

[tex]v_f=84\ m/s[/tex]

Answer: B. 84 m/s

Answer:

D

Explanation:

most probable answers. I miss however here few things like eg. dark matter

Answer:

198785.714286 Joules

Explanation:

[tex]W=f*d[/tex]

[tex]F=ma\\F=516.326530612*-14\\F=-7228.57142857 N\\[/tex]

To find work:

Now that the force and the distance are known, plug and chug:

[tex]W=f*d\\W=-7228.57142857*27.5\\W=-198785.714286J[/tex]

Note that the question is asking for the magnitude of work, so the negative can be discarded as it is a directional component.

So, your answer is

198785.714286 Joules

Answer:

B. False

Explanation:

Without good technique and posture you can end up getting injured.

Answer:

3 hours.

Explanation:

If speed is reduce of 5, then she drive at 35 mph.

so 35*3 = 105 miles in 3 hours.

Therefore, we get 3 hours.

Answer:

D. Energy in an isolated system remains constant

General Formulas and Concepts:

Physics

Explanation:

According to the Law of Conservation of Energy, it cannot be created or destroyed.

Therefore, we can eliminate choices A and B right off the bat.

We need to choose between C and D. We know that even though energy cannot be created or destroyed, it can be changed into a different form. Therefore, the correct answer is D.

Answer:

350 m/s

Explanation:

In order for Boy to hear the sound, the sound  has to travel from his hands to the cliff, and then BACK to him from the cliff to his ears.

So the sound has to travel (2 x 420m) = 840 m.

Speed = (distance) / (time)

Speed = (840 m) / (2.4 sec)

Speed = 350 m/s

Answer:

350 m/s

Explanation:

Answer:

They all have electrical currents

Answer:

They have electronic parts and currents

Answer:

temperature is the degree or intensity of heat present in a substance or object.

Please mark me as Brainliest ........

Answer:

i would say D.

Explanation:

The sum of the given vector is option B as it is showing proper magnitude and direction.

A Euclidean vector, also known as a geometric vector or spatial vector, is a geometric entity with magnitude (or length) as well as direction in arithmetic, physics, and engineering.

Vector algebra allows vectors to be added to other vectors.

Physical concentrations can be represented using vectors. Vectors are most frequently used in physics to represent displacement, velocity, and acceleration.

Vectors are arrows that represent an amalgamation of magnitude and direction.

The operation of combining two or more vectors into a vector sum is known as vector addition.

The rule for vector addition of two or more vectors is given by the so-called parallelogram law.

Thus, the correct option is B as it is having magnitude and direction.

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Answer:

0.1 seconds

Explanation:

The speed of the cheetah has been given as 64km/h

To convert it to m/sec = 64x10³/3600

This is what resulted into 17.8m/sec

We are required to calculate how much time this cheetah would take to run for 2meters.

To get this,

= 2/17.8

= 0.11235 seconds

This is approximately 0.1seconds. so 0.1sevonds is the time it would take it to run 2m

Answer:

Given - Charge = 60c

time = 30 sec

To find - current

Solution

Current = Charge/time

I = V/T

I = 60/30

I = 2 ampere

More to know -

I = Current

V = Charge

T = Time

Answer:

it should be C.

Explanation:

Visualizing refers to the ability to create mental pictures in our mind based on the text we read or words we hear. When we visualize, we are tapping into our prior knowledge, making connections, gathering information and paying attention to detail. It is one of many skills that make reading comprehension possible.

Answer:

(Q1 - Q2)/Q1

Explanation:

The efficiency of any device can be given by the following formula:

[tex]Efficiency = \eta[/tex] = Output/Input

Now, for engine the output is the mechanical work that it does and the input is the heat that it absorbs. Let:

W = Work Done by the engine

Q₁ = Heat Absorbed by the System

Q₂ = Heat Rejected by the System (Because According to 2nd Law of Thermodynamics, engine can not convert the entire heat into work without rejection of some heat)

Therefore, the equation becomes:

[tex]\eta = \frac{W}{Q_{1}}[/tex]

but, the work can be written as the difference between the absorbed heat and the rejected heat. Hence,

[tex]\eta = \frac{Q_{1} - Q_{2}}{Q_{1}}[/tex]

Therefore, the correct option is:

(Q1 - Q2)/Q1

Answer:

gang

Explanation:

yupppp

Answer:

quartz watch wasn't in ancient times

Answer:B

Explanation:please like this bc I just did it and got it right

Answer: Glucose

Explanation: