If 130 J of energy were added to 1 kg of each of the samples listed in the answer choices, which would experience the GREATEST temperature increase?A. AluminumB. BrassC. GlassD. Steel

Answer:c

Explanation:

Answer:

0.557 s

Explanation:

Given:

v₀ = 5.46 m/s

v = 0 m/s

a = -9.8 m/s²

Find: t

v = at + v₀

0 m/s = (-9.8 m/s²) t + 5.46 m/s

t = 0.557 s

Answer:

Gold

Explanation:

I would say Gold because it is not a practical material for making utensils due to its high cost and softness.

Which cannot be made for utensils?

The answer to the question is B. gold.

Gold is a very soft metal and is not ideal for making utensils that require strength and durability. Iron and copper, on the other hand, are commonly used for utensils as they are strong and durable. Carbon, in the form of carbon steel, is also commonly used for making utensils due to its strength and resistance to corrosion.

~ Zeph

Answer:

the answer is b temperature

Answer:

A runner sprints for 20 minutes at an average pace at 7mph.what is the distance traveled?

Explanation:

140

Answer:

-2.7m/s

Explanation:

...............

Answer:

Problem:

a 5 kg dog jumps on table with a mass of 30 kg what is the average force that the table applies to the dog.

Note:

What ever is the force applied by the dog to the table, it will be the same force exerted by the table to the dog but in opposite direction. Study on the Newton's Third law of motion

Given Data:

m ( mass ) = 5 kg

a ( acceleration ) = 9.8 m/s²

F ( Force ) = ? unknown

Solution:

We will use the formula of Force ( F = m × a ) in order to solve the problem.

F = m × a

= 5 kg × 9.8 m/s²

= 49 kg·m/s²

= 49 N

Answer:

The table will exert 49 N of Force to the dog

Answer:

Depends on position

Explanation:

Rest:

A body is said to be at rest, if it does not change its position with respect to its surroundings.

Motion:

A body is said to be in motion, if it changes its position with respect to its surroundings.

The state of rest and motion is relative

The upward acceleration of the acrobat is 1.833 m/s².

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

Given parameters:

Mass of the acrobat; M = 588 N.

Weight of the acrobat acting downwards; W = 588 N.

Upward force provided by each of the two ropes; f = 349 N.

Hence, net force acting on the acrobat in upward direction = 2f -w

= (2×349 - 588 ) N.

= 110 N.

Hence, the upward acceleration of the acrobat is = net force/ mass

= 110/60 m/s².

=1.833 m/s².

So, the upward acceleration of the acrobat is 1.833 m/s².

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Answer:

Sorry I dont know this answer sorry

The relationship between speed, distance, and time is described using the formula speed distance time. An object traveling 10 miles in 5 minutes averages 120 miles per hour.

10 miles were covered in total.

It took five minutes in total.

The formula can be used to determine the speed.

s = d/t

s being the speed

D stands for distance.

The amount of time used

Let's change the known variables in the equation above to get

s = 10/5

= 2 miles/minute

However, we must convert the speed to miles per hour in order to use it.

s=2 x 60 miles per hour

120 miles per hour.

An object traveling 10 miles in 5 minutes averages 120 miles per hour.

Consequently, the typical speed is 120 miles per hour.

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Answer:

box 1 has larger mass than box 2  (which agrees with the first answer option given.

Explanation:

We need to consider the linear momentum of the boxes immediately before and after they crash.

Recall that momentum is defined as mass times velocity.

So for before the collision, the linear momentum of the system of two boxes is:

m1 * 4km/h  - m2 * 8km/h

with m1 representing mass "1" on the left, and m2 representing mass 2 on the right.

Notice the sign of the linear momentum (one positive (moving towards the right) and the other one negative (moving towards the left)

For after the collision, we have or the linear momentum of the system:

- m1 * 2km/h - m2 * 1km/h

Then, since the linear momentum is conserved in the collision, we make the  initial momentum equal the final and study the mass relationship between m1 and m2:

4 m1 - 8 m2 = - 2 m1 - m2

combining like terms for each mas on one side and another of the equal sign, we get;

4 m1 + 2 m1 = 8 m2 - m2

6 m1 = 7 m2

therefore m1 = (7/6) m2

which (since 7/6 is a number larger than one) tells us that m1 is larger than m2 by a factor of 7/6

Therefore, the first answer option is the correct answer.

Hi there!

Informative writing has the intent to inform or educate us on a particular topic or event. It gives us more information and insight onto something.

Persuasive writing has the intent of convincing us to believe in a certain idea or to perform a certain action. For instance, advertisements have a persuasive intent; they are persuading us to buy a product or service.

Argumentative writing is similar to persuasive writing in the sense that they are persuading us to believe a certain idea. However, they are often based on logic and fact rather than opinions.

Let's look at the first excerpt.

This morning at 9 a.m., a school bus collided with a car at the intersection of Osmena and Cabrera streets. The passengers were not injured, but the medical personnel checked each student as well as the driver before they were transported to their school.

This text doesn't try to convince us in believing something. It doesn't argue anything and it only tries to give us more insight onto the event, which is a car accident. No opinions are stated and only events are given.

Therefore, this excerpt uses an informative writing technique.

Answer:

1. Informative
2. Persuasive
3. Informative
4. Persuasive
5. Argumentative

Explanation:

Informative is a way to inform the audience on a particular topic throughout the reading. Common examples of an informative paragraph would be to inform people on different situations around the world or a news outlet some would say.

Persuasive is a way to convince one to change/commit an act of sorts. Through persuasion you can convince your audience to look at a situation from a different perspective and perhaps convince the person to be more willing to do change the way they do something else. Common example of a persuasive paragraph would be trying to persuade someone to use less water through telling them the importance of water conservation and how water is a nonrenewable source.

Argumentative somewhat similar to persuasive but is more assertive you are trying to convince the audience why the side you're apart of is more better then the opposite side through a means of ethos, pathos, and logos. Common example of a argumentative paragraph would be something like why pizza is better then hamburgers.

Now that we know this information it's time to answer:

Excerpt one:
Excerpt one is known "informative excerpt" because we are informing the readers about how a school bus collided with a car nearby, and how thankfully none of the passengers were injured.

Excerpt two:
Excerpt two would be known as a "persuasive writing." We aren't trying to convince the audience on our side of donating blood so this won't be an argumentative writing, we are trying to persuade them by saying the benefits of how donating blood can save a person's life.

Excerpt three:
Excerpt three would be known as an "informative writing." We aren't trying to persuade or convince we are trying to inform the audience of the dangers of drinking while in high school by listing all the negative effects drinking has on a highschooler like unsafe encounters.

Excerpt four:
Excerpt four would be known as an "persuasive writing." This writing is trying to convince the reader about how the death penalty is a good punishment for criminals because the bible says an eye for an eye and how we should keep it on the books.

Excerpt five:
The final excerpt will be known as an "argumentative writing." This writing is again assertive, and it lists both sides of the spectrum how parents won't let their children study abroad because of how expensive it costs for things like tuition, food, shelter along with other necessities. It even goes as far as stating it's own position by saying how it's expensive to study abroad.

Hope this helps.

Answer:

convection currents

Explanation:

The force that peter applies to the object of distance 40m is 75N.

The force applied to an object can be calculated by dividing the work done on the object by the distance moved. That is;

Force = Work done ÷ distance

According to this question, the work done is 3000 joules while the distance moved is 40m. The force is calculated as follows:

Force = 3000J ÷ 40m

Force = 75N

Therefore, the force that peter applies to the object of distance 40m is 75N.

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The box accelerates to the right due to the applied force of 35 N in the +x direction.

Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. In this case, the net force acting on the box is 35 N in the +x direction, and its mass is 15 kg. Therefore, we can calculate the acceleration using the formula:

acceleration = net force / mass

acceleration = 35 N / 15 kg = 2.33 m/s² (rounded to two decimal places)

Since the box is not accelerating up or down, we can conclude that the force applied is only causing the box to accelerate in the horizontal direction.

Other forces such as gravity and friction are not considered in this scenario. Thus, the 15 kg box will experience an acceleration of approximately 2.33 m/s² in the +x direction due to the applied force of 35 N.

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Answer: Please see the attached image.

Explanation:

A diagram of the Lewis dot structure depicts the valence electrons of the atoms of a molecule. It makes use of dots to represent lone electron pairs and lines to represent atomic bonds.

Valence Electrons are the s and p subshells on the periodic table. You count the total s and p subshells of the corresponding atom to find how much valence electrons it has.

The region with high electric potential  (80 V and 70 V) will have high electric field while the region with low electric potential (20 V) will have low electric field.

Electric field is the field that surrounds electrically charged particles and exerts force on all other charged particles in the field.

E = V/d

where;

Since electric field is directly proportional to electric potential, the region with high electric potential  (80 V and 70 V) will have high electric field while the region with low electric potential (20 V) will have low electric field.

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The acceleration of Thomas is 0.233 m/s^2.

Acceleration is the rate of change of velocity. Thomas the Train chugs along at a velocity of 2 m/s.

Thomas needs to go faster so more coal is shoveled into his engine and he accelerates for 10 seconds until he is going 4.33 m/s.

We are to find the acceleration of Thomas.

The formula for acceleration is given as :

acceleration = (final velocity - initial velocity) / time

In the given problem, the initial velocity of Thomas, u = 2 m/s.

The final velocity of Thomas, v = 4.33 m/s The time for which Thomas accelerates, t = 10 s.

Therefore, the acceleration of Thomas will be given as:

a = (v - u) / ta = (4.33 - 2) / 10s => 2.33 / 10s => 0.233 m/s^2

Thus, the acceleration of Thomas is 0.233 m/s^2.

To summarize, the acceleration of Thomas is 0.233 m/s^2.

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Answer:

Approximately \(4.7\; {\rm s}\).

Explanation:

Acceleration is the rate of change in velocity.

The initial velocity of this vehicle was \(v_{0} = 24\; {\rm m\cdot s^{-1}}\). After stopping, the velocity will be \(v_{1} = 0\; {\rm m\cdot s^{-1}}\). Hence, the change in the velocity of this vehicle will be:

\(\begin{aligned}\Delta v &= v_{1} - v_{0} \\ &= 0\; {\rm m\cdot s^{-1}} - 24\; {\rm m\cdot s^{-1}} \\ &= (-24)\; {\rm m\cdot s^{-1}} \end{aligned}\).

It is given that the vehicle decelerates at a constant rate of \(5.1\; {\rm m\cdot s^{-2}}\). Thus, the rate of change in the velocity of this vehicle (acceleration) will be negative (velocity is decreasing) at \(a = (-5.1)\; {\rm m\cdot s^{-2}}\).

To find the time required for this change in velocity, divide the change by the rate of change:

\(\begin{aligned}(\text{time required}) &= \frac{(\text{change})}{(\text{rate of change})} \\ &= \frac{\Delta v}{a} \\ &= \frac{(-24)\; {\rm m\cdot s^{-1}}}{(-5.1)\; {\rm m\cdot s^{-2}}} \\ &\approx 4.7\; {\rm s}\end{aligned}\).

Answer:

11.54 meters

Explanation:

The owners take  10m / (1.3 + 1.3 m/s)  = 3.85 seconds to meet

The dog is running at constant speed of 3 m/s for these 3.85 seconds

   3 m/s * 3.85 sec = 11.54 meters

Answer:

\(\boxed {\boxed {\sf 100,000 \ Joules}}\)

Explanation:

Kinetic energy is energy due to motion. The formula is half the product of mass and velocity squared.

\(E_k= \frac{1}{2} mv^2\)

The mass of the roller coaster car is 2000 kilograms and the car is moving 10 meters per second.

Substitute these values into the formula.

\(E_k= \frac{1}{2} (2000 \ kg ) \times (10 \ m/s)^2\)

Solve the exponent.

\(E_k= \frac{1}{2} (2000 \ kg ) \times (100 \ m^2/s^2)\)

Multiply the first two numbers together.

\(E_k= 1000 \ kg \times (100 \ m^2/s^2)\)

Multiply again.

\(E_k= 100,000 \ kg*m^2/s^2\)

\(E_k= 100,000 \ J\)

The roller coaster car has 100,000 Joules of kinetic energy.

Answer: I believe farther. Correct me if I am wrong

Explanation:

Answer:

Closer.

Explanation:

Due to the refraction of light passing through water and air.

Answer:

Explanation:

Sure, I'd be happy to help you with the question!

Let's denote the input as x. According to the function machine, the input is multiplied by 6 and then 80 is subtracted from the result to obtain the output.

So, the function can be written as:

Output = (6 * x) - 80

Now, the problem states that the input is the same as the output. Therefore, we can set up the equation:

x = (6 * x) - 80

Let's solve this equation to find the value of x:

x = 6x - 80

Subtracting 6x from both sides, we get:

x - 6x = -80

Combining like terms, we have:

-5x = -80

Dividing both sides by -5, we find:

x = (-80) / (-5)

Simplifying the expression, we have:

x = 16

Therefore, the input (x) that results in the input being the same as the output is 16.

To work out these types of questions, it's important to carefully read the instructions and understand the operations being performed in the function machine. Then, you can set up an equation with the input and output, and solve for the unknown value. Always double-check your solution to ensure it satisfies the given conditions of the problem.

Answer:

16

Explanation:

(x*6) - 80 = x

Multiply the parentheses

6x - 80 = x
Add 80 to each side to get
6x = x + 80
Subtract x from both sides to get
5x = 80
Divide both sides by 5
x = 16

The diagram below that shows a free-body diagram is the third option m

A free-body diagram shows all the forces acting on a single object. In this case, the object is m3. The forces acting on m3 are:

The force F1 exerted by m1. This force is directed to the left. The force F2 exerted by m2. This force is directed to the right.

The force F3 exerted by m3. This force is directed to the left.

The net force on m3 is zero, since the forces F1 and F2 are equal and opposite. This means that m3 is in equilibrium.

Diagram (a) shows the forces F1 and F2, but it does not show the force F3. This is incorrect, since F3 is also acting on m3. In conclusion,the correct option is C.

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Taking into account the definition of wavelength, frecuency and propagation speed, the frequency of the waves in the tsunami is 2.59×10⁻⁴ Hz.

First of all, wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. It is expressed in units of length (m).

On the other side, frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

Finally, the propagation speed is the speed with which the wave propagates in the medium, that is, it is the magnitude that measures the speed at which the wave disturbance propagates along its displacement.

The propagation speed relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:

v = f×λ

In this case, you know:

Replacing:

0.194 m/s=f× 750 km

Solving:

f= 0.194 m/s ÷ 750 km

λ= 2.59×10⁻⁴ Hz

In summary, the frequency of the waves in the tsunami is 2.59×10⁻⁴ Hz.

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Answer:

well in the pot there is conventional heat, the pot itself is giving off conductable heat, and the radiational heat is coming from the stove.

Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.

How do digital signals work?

An established or one that represents data as a step made up of discrete values is known as a digital signal. There is no noise produced by digital signals. Electronic signals sent as pulses are used to transmit digital signals to computers. These signals can be found in things like digital phones and computers.

Because digital signals are used to transport data to and from the cloud, it should be noted that videos are said to stream from the cloud to a computer without quality degradation.

Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.

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T = (m g) + (m a), where "g" denotes the acceleration caused by gravity of any objects the rope is supporting and "a" denotes any additional acceleration on any such objects, can be used to represent the tension in a given rope.

An object's velocity can change based on how rapidly, slowly, or which way it is moving. As examples of acceleration, consider a falling apple, the moon orbiting the earth, or a car coming to a complete stop.

The velocity of a displacement affects how quickly it changes. Acceleration is the term used to describe how quickly a velocity changes.

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