Calculate the kinetic energy in J of an electron moving at 6.00 x 106 m/s. The mass of an electron is 9.11 x 10-28 g. A) 4.98 x 10-48) B) 3.28 x 10-14) C) 1.64 x 10-17) D) 2.49 x 10-48J E) 6.56 x 10-14)

A flatbed truck is carrying a heavy crate. the coefficient of static friction between the crate and the bed of the truck is 0.75. The maximum rate at which the driver can accelerate and still avoid having the crate slide across the bed of the truck will be 7.35 \(m/s^{2}\)

Static friction force = mu * N

mu = coefficient of static friction

N = normal

m = mass

g = acceleration due to gravity  

Static friction force = 0.75 * m * g = 7.35 * m  N

7.35 * m  Newton  is the maximum force , above which the crate will start to move

Force = mass * acceleration

7.35 * m = m * a

a = 7.35 \(m/s^{2}\)

The maximum rate at which the driver can accelerate and still avoid having the crate slide across the bed of the truck will be 7.35 \(m/s^{2}\)

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The velocity of vehicles after the collision is 15.82m/sec if car mass is 1.4 × 10³kg and truck mass is 2×10³kg

We know that we need to conserve the momentum of watermelon in a certain direction. Also,we know that initial momentum of watermelon is zero,it means that according to law of conservation of momentum final momentum should be zero.

We know that momentum =mass × velocity

So,initial momentum of car is =1.4 × 10³kg × 37km/hr

Similarly,,initial momentum of truck=2×10³kg × 35km/hr

Now,it is given that both vehicles lock together,so total mass of both vehicles is =1.4 × 10³kg +  2×10³kg=3.4 ×10³kg

Assume final velocity of both vehicle is v

So,following the law of conservation,we get

=>1.4 × 10³kg × 37 + 2×10³kg × 35 = 3.4 ×10³ ×v

=>51.8 ×10³ + 2×10³=3.4×10³ ×v

=>53.8 ×10³ kg-m/sec = 3.4×10³ ×v

=>v = 53.8/3.4

=>v=15.82m/sec

Hence,final velocity of both vehicle after collision is 15.82m/sec.

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Answer:

1.) Experiments

2.) Mass, occupies space

3.) Potential energy

Explanation:

When 6.50 × 10^5 J of heat is added to a gas in a cylinder with a frictionless piston at atmospheric pressure, gas volume increases from 1.9 m^3 to 4.1 m^3. We need to calculate the work done and change in internal energy.

To calculate the work done by the gas, we can use the equation:

Work = Pressure × Change in Volume.

Given that the pressure is maintained at atmospheric pressure, we can substitute the values:

Work = Atmospheric Pressure × (Final Volume - Initial Volume).

Work = 1 atm × (4.1 m^3 - 1.9 m^3).

Next, we calculate the change in internal energy of the gas using the first law of thermodynamics:

Change in Internal Energy = Heat Added - Work Done.

Given that heat added is 6.50 × 10^5 J and we have already calculated the work done, we can substitute the values:

Change in Internal Energy = 6.50 × 10^5 J - Work Done.

To graph this process on a PV diagram, we plot pressure (P) on the y-axis and volume (V) on the x-axis. We mark the initial point at 1.9 m^3 and atmospheric pressure. Then, we mark the final point at 4.1 m^3 and atmospheric pressure. The process is represented by a straight line connecting these two points.

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Answer:

velocity term

Explanation:

Answer:velocity term

Explanation:

The correct option is D, These best convection currents are easily visible.

Convection is a mode of heat transfer that occurs through the motion of fluids, such as gases or liquids. When there is a temperature difference between two fluid regions, hotter regions tend to expand and become less dense, causing them to rise and cooler regions to sink. This process creates a flow of fluid, which carries heat away from the hotter region and toward the cooler one.

Convection plays a vital role in many natural phenomena, such as weather patterns, ocean currents, and the movement of magma in the Earth's mantle. It is also used in various engineering applications, such as cooling, heating, and fluidized bed reactors.

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Complete Question:

Which of these best describes convection currents?

A. extremely fast

B. unpredictable

C. slow-moving

D. easily visible

the answer is C difference in density because hot air is less dense than cold air so hot air will rise and cold air will fall.

Answer:

a difference in density

Explanation:

Density measures the amount of mass (the number of particles) in a specific volume.

Since the molecules in warm air are spread farther apart than the molecules in cold air, there are fewer air particles per unit volume in warm air than in cold air. This means that warm air is less dense than cold air, and it will rise.

So, warm air rises and cold air sinks because of a difference in density.

Answer:

177 coulomb

Explanation:

Given data

I=2.95A

T=60

The relationship between current I and quantity of charge Q.

Q=IT

Substitute

Q=2.95*60

Q=177 coulomb

The advice the interviewee offered for students interested in his/her career was to be hardworking and persistent.

This is referred to as the chosen profession or occupation of an individual and is characterized by the individual taking the required courses or training which are needed in the execution of the tasks related to it.

The advise which was offered to the students was to be hardworking and persistent as there are lots of challenges and obstacles which one will face on the journey and will help overcome them and achieve the desired result in practicing the career.

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In this case, we have two S3-kg crates that are resting on the ground and a force P is applied to one of the crates in a horizontal direction.

We need to find the maximum force that can be applied so that the crates do not move.The coefficient of static friction between the crates and the ground is "a".From the given data,Mass of each crate, m = 3 kgCoefficient of static friction, μ = aLet the force of friction between the crates and the ground be Ff.

The force acting on the first crate in the horizontal direction will be (P - Ff).The force acting on the second crate is only due to the force of friction and it will be Ff. Since both the crates are not moving in the vertical direction, the force acting on them in the vertical direction will be their weight, which is given bymg = 3 * 9.8 = 29.4 N.Now, we can find the maximum force P that can be applied without causing the crates to move.

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Answer:

Science can not solve all of our problems. While scientific understanding can help battle things like disease, hunger, and poverty when applied properly, it does not do so completely and automatically. Furthermore, there are many areas of life where science can have little impact. Let us look at some of the reasons why this is so.  First of all, there is a huge difference between knowing something and acting on it. Science is concerned with accumulating and understanding observations of the physical world. That understanding alone solves no problems. Individual people have to act on that understanding for it to help solve problems. For instance, science has found that regular exercise can lower your risk of heart disease. Knowing this fact is interesting, but it will do nothing for your personal heath unless you act on it and actually exercise. And that's the hard part. Reading an article about exercise is easy. Getting into an actual routine of regular exercise is harder. In this sense, science really solves no problems at all. Problems are only solved when people take the knowledge (or tool, or pill, or whatever) provided by science and use it. In fact, many of humanity's biggest problems are caused by lack of action, and not lack of knowledge.

Take world hunger, for example. There is currently enough food produced on the earth every year to comfortably feed every single person. The world produces about 700 trillion grams of rice each year. With seven billion people on the planet, 365 days in the year, and about 40 grams per typical serving of rice, there is enough rice on the planet to feed every single last person seven servings of rice every day. And this is just rice. Similar numbers hold up for wheat, corn, meat, etc. Science has done an amazing job in the last 50 years of making farms productive. And yet, millions of people in the world still suffer starvation. Why? Because of actions. If all it took was science to solve problems, no one would go hungry anymore because there is enough food. We could fill books with the analysis of human actions that cause world hunger if we wanted to.

Explanation:

Only queries that can be critiqued through observation and experiment are investigated using the scientific method. As a result, science cannot answer value-laden questions like the meaning of life.

Science is the study of the natural world. This includes the physical universe's components, such as atoms, plants, ecosystems, people, societies, and galaxies, in addition to the innate forces acting on those things.

Science, on the other hand, cannot investigate supernatural forces and explanations.

Environmental science aids in our understanding of the natural world because it encompasses all aspects of nature.

The natural world is comprised of numerous components, including the Earth itself, our atmosphere, bodies of water, and all living things that inhabit our planet.

The scientific method is used to investigate only questions that can be challenged through observation and experimentation.

Thus, scientist study the natural world to find solutions to human problems.

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Answer:

14 km/h

Explanation:

The average speed of the cyclist could be calculated by the following formula:

average speed = total distance/total time

                         = 49/3.5

                         = 14 km/h

Hope this helps!

The maximum current in the inductor is approximately 1.21 amperes when a 5.05 μF capacitor initially charged to 15.2 V is connected in series with a 3.75 mH inductor.

To determine the maximum current in the inductor when a 5.05 μF capacitor initially charged to a potential of 15.2 V is connected in series with a 3.75 mH inductor, we can use the formula for the resonant frequency of an LC circuit.

The resonant frequency (fr) of an LC circuit is given by:

fr = 1 / (2π√(LC))

Given:

C = 5.05 μF = 5.05 × \(10^{-6}\)F

L = 3.75 mH = 3.75 × \(10^{-3}\) H

Plugging the values into the formula:

fr = 1 / (2π√(5.05 × \(10^{-6}\) × 3.75 × \(10^{-3}\)))

  = 1 / (2π√(1.89125 ×\(10^{-8}\)))

  ≈ 530,012 Hz

The maximum current (Imax) in the inductor can be calculated using the formula:

Imax = V / Xl

Where:

V is the initial potential (voltage) across the capacitor (15.2 V), and

Xl is the inductive reactance.

The inductive reactance (Xl) is given by:

Xl = 2πfL

Plugging the values into the formula:

Xl = 2π(530,012)(3.75 × \(10^{-3}\))

  ≈ 12.556 Ω

Plugging the values into the formula for Imax:

Imax = 15.2 V / 12.556 Ω  ≈ 1.21 A

Therefore, the maximum current in the inductor is approximately 1.21 amperes.

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Answer:

D. Electromagnetic

Explanation:

1. A vibrating electric charge creates an EM (electromagnetic) wave

2. Transmitting energy from Sun to the Earth would require crossing the vast emptiness of space, which is a vacuum (no medium to propagate longitudinal waves). Hence, this wave is transversal. EM waves are also transversal.

3. EM waves have both an electric and magnetic component, conventionally on the y and z axes, respectively.

4. The speed of this wave does decrease as the medium becomes denser. Take light for example. Light is also an EM wave and, although it does not need a medium to propagate, it still changes its speed depending on which medium it is passing.

Hence, the wave is electromagnetic

Answer:

B seismic wave

Answer:

D)

Explanation:

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Brainliest pls ❤️

Answer:

A

Explanation:

virtual images can be either upright or inverted

Answer:

orce or acceleration b. Ms. Sunderland finally decided to take this seriously and put both hands on the rope and applied a 1000 N force to the left, while Jared and James still struggled with their 300 N force to the right. What is ... 150 more force. 10. During 5th period Dylan resisted the forces applied by her classmates in a ...

Explanation:

Answer:

"element"= There are four basic sentence patterns based on sentence construction element

Answer:

1st one. Element

2nd one. Compound

Explanation:

According to the question, the magnitude of the magnetic field near the center of the solenoid is approximately 0.301 T.

To find the magnitude of the magnetic field near the center of the solenoid, we can use the formula for the magnetic field inside a solenoid:
B

= (μ0 * n * I) / L
Where:
B is the magnetic field
μ0 is the permeability of free space (4π * 10^-7 T*m/A)
n is the number of turns per unit length (turns/m)
I is the current
L is the length of the solenoid
First, let's calculate n, the number of turns per unit length:
n

= N / L
Where:
N is the total number of turns
L is the length of the solenoid
Given that the solenoid has 400 turns and a length of 40 cm (0.4 m):
n

= 400 / 0.4
n

= 1000 turns/m
Now, we can substitute the values into the formula:
B

= (μ0 * n * I) / L
B

= (4π * 10^-7 T*m/A * 1000 turns/m * 12 A) / 0.4 m
Calculating the expression:
B

= (4π * 10^-7 T*m/A * 1000 turns/m * 12 A) / 0.4 m
B

≈ 0.301 T
Therefore, the magnitude of the magnetic field near the center of the solenoid is approximately 0.301 T.

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To draw the circuit diagram with four 15 ohm resistors connected in a series to a 45-v battery, along with an ammeter and voltmeter, follow the steps below:Step 1: Place the batteryTo begin with, draw the 45 V battery at the top of the page, as shown in the figure below.  Step 2: Add resistorsNext, add the four 15 ohm resistors in a series circuit after the battery, as shown in the figure below.  

Step 3: Add the ammeterIn the circuit, an ammeter is placed in series with the resistors to calculate the total current in the circuit. Connect the ammeter between the last resistor and the negative terminal of the battery, as shown in the figure below.Step 4: Add the voltmeter. Finally, a voltmeter is placed in parallel with the resistors to determine the voltage across them.

Connect the voltmeter in parallel with each resistor, as shown in the figure below. [Figure]Hence, this is how the circuit diagram with four 15 ohm resistors connected in a series to a 45-v battery looks like, along with an ammeter and voltmeter.

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The equation =c/f relates wavelength and frequency. There is an inverse relationship between wavelength and frequency.

One crucial equation connects them all: The speed of light is equal to the frequency times the wavelength of any electromagnetic wave. If we know the other measurement, we can use this connection to calculate the wavelength and frequency of the any electromagnetic wave.

The distance between the crests of two waves is known as the wavelength, which also applies to troughs. The number of vibrations that pass across a certain area in a second is the frequency, which is expressed in seconds per cycle (Hz) (Hertz). This article discusses how wavelength and frequency relate to one another.

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Answer:

4.3 x 10^16 kg

Explanation:

M = rv^2/G =[90,000 x 5.66^2] / [6.67 x 10^-11]

M = 43,226,446,776,611,694 = 4.3 x 10^16 kg - Ida's mass.

Answer:

Explanation:

the person on top of me was correct 4.3 10^16 i have it in my notes from when i was in school :) so they are right

Answer:

need more context

Explanation:

Answer:

EL QUE TENGA MÁS MASA Y MÁS ALTURA.

Explanation:

When a neuron is at resting potential, the state of the electrical charge is negative inside the neuron compared to the outside

Because of an unequal distribution of ions like potassium (K+) and chloride (Cl-) inside and outside the neuron, the interior of the neuron is negatively charged at resting potential. The membrane of the neuron is selectively permeable, permitting certain ions to pass while preventing others from doing so. A gradient in electrochemistry results from this.

Ion channels, notably the sodium-potassium pump, which actively transfers sodium ions (Na+) out of the neuron and potassium ions (K+) into the neuron, are responsible for maintaining the resting potential. As a result, the neuron produces an excess of negative charge within and an excess of positive charge outside.

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The correct range for the temperature danger zone is 40-140°F.

The temperature danger zone refers to the range of temperatures in which bacteria can grow and multiply rapidly, posing a risk of foodborne illnesses. The correct range for the temperature danger zone is 40-140°F (4-60°C). Within this temperature range, bacteria can multiply quickly, reaching dangerous levels that can lead to food poisoning.

Temperatures below 40°F (4°C) can slow down bacterial growth, while temperatures above 140°F (60°C) can kill most bacteria. However, between 40-140°F, bacteria thrive and can double in number every 20 minutes, increasing the risk of foodborne illnesses.

Maintaining proper temperature control is crucial in food safety to prevent bacterial growth and minimize the risk of foodborne illnesses. This is particularly important for perishable foods such as meats, poultry, fish, dairy products, cooked rice, and cooked vegetables.

To ensure food safety, it is recommended to keep cold foods below 40°F (4°C) and hot foods above 140°F (60°C).

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Answer:

i don't really know the exact answer but i would say something like earthquakes or steam/excessive heat

Explanation:

Calculate the temperature change in each beaker during the course of the first 1 min and the next 500 to 600 seconds. Comparing this to

What does temperature in physics actually mean?

Many people have an obsession with checking a forecast to find out the day's temperature. The average kinetic energy of each molecule in a substance is measured by its temperature. Despite the fact that the two variables are closely related, it differs from heat.

What distinguishes an object's energy from its temperature?

As was mentioned, an object's energy is extensive while its temperature is intense. The block may still be hotter even if the liquid has more energy. (2) "Two things with equal heat in thermal equilibrium" improper use of heat. Energy is transferred by heat. Heat does not 'exist' in an object.

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