Which equation will tell you the acceleration of the object?

The mass of the balsa wood wing with the given dimensions is approximately 0.00333 kg

To calculate the mass of the balsa wood wing, we need to know the density of balsa wood. The density of balsa wood can vary depending on the specific type of balsa wood, but a typical range is around 100 to 200 kg/m³.

Let's assume the density of the balsa wood is 150 kg/m³, which is a common value for medium-density balsa wood.

First, let's convert the dimensions of the wing from centimeters to meters:

Length = 26.9 cm = 0.269 m

Width = 5.5 cm = 0.055 m

Thickness = 0.15 cm = 0.0015 m

The volume of the wing can be calculated by multiplying the length, width, and thickness:

Volume = Length x Width x Thickness

= 0.269 m x 0.055 m x 0.0015 m

= 0.0000222 m³

The mass of the wing can then be calculated by multiplying the volume by the density:

Mass = Volume x Density = 0.0000222 m³ x 150 kg/m³ = 0.00333 kg

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a. The magnitude of the electric force that one particle exerts on the other is 1.72 millinewtons (mN). and b. the force is repulsive

To calculate the magnitude of the electric force between two charged particles, we can use Coulomb's Law, which states that the magnitude of the electric force (F) between two charged objects is given by:

F = k * (|q1| * |q2|) / r^2

where k is the electrostatic constant (k = 8.99 x 10^9 N·m^2/C^2), q1 and q2 are the charges of the particles, and r is the distance between them.

Given:

q1 = 8.01 nC (nanocoulombs)

q2 = 4.22 nC (nanocoulombs)

r = 1.72 m

Converting the charges to coulombs:

q1 = 8.01 x 10^-9 C

q2 = 4.22 x 10^-9 C

Plugging the values into Coulomb's Law:

F = (8.99 x 10^9 N·m^2/C^2) * ((8.01 x 10^-9 C) * (4.22 x 10^-9 C)) / (1.72 m)^2

Calculating the magnitude of the force:

F ≈ 1.72 x 10^-3 N

Therefore, the magnitude of the electric force that one particle exerts on the other is approximately 1.72 millinewtons (mN).

To determine if the force is attractive or repulsive, we need to consider the signs of the charges. If the charges have opposite signs (one positive and one negative), the force is attractive. If the charges have the same sign (both positive or both negative), the force is repulsive.

In this case, both charges are positive, so the force between them is repulsive. The particles will experience a repelling force due to their like charges, causing them to push away from each other.

The question was incomplete. find the full content below:

Two charged particles are a distance of 1.72 m from each other. One of the particles has a charge of 8.01 nC, and the other has a charge of 4.22 nC.  

(a) What is the magnitude (in N) of the electric force that one particle exerts on the other?

(b) Is the force attractive or repulsive?

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(a) The magnitude and direction of the net force on the crate while it is on the rough surface is 34.7 N in opposite direction.

(b) The net work done on the crate while it is on the rough surface is -22.6 J.

(c) The speed of the crate when it reaches the end is 0.5 m/s.

The magnitude and direction of the net force on the crate while it is on the rough surface is calculated as follows;

F (net) = F - Ff

where;

F (net) = F - μmg

where;

F (net) = 289 N  -   (0.359 x 92 X 9.8)

F (net) = -34.7 N

The negative sign indicates opposite direction to the applied force.

The net work done on the crate while it is on the rough surface is calculated as follows;

W = F(net) x L

where;

W = -34.7 x 0.65

W = -22.6 J

The speed of the crate when it reaches the end is calculated as follows;

acceleration of the crate = F(net) / m

a = -34.7 N / 92 kg

a = -0.377 m/s²

v² = u² + 2aL

v² = ( 0.855)²  +  ( 2 x -0.377 x 0.65)

v² = ( 0.855)²   - ( 2 x 0.377 x 0.65)

v² = 0.24

v = √ 0.24

v = 0.5 m/s

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true

Explanation:

computers have become a need in many businesses and homes we now living in a era of technology a computer is now a neccecity

The statement is True.

Personal computers have become an essential fixture in most businesses and households.

They have revolutionized the way we work, communicate, access information, and perform various tasks.

In the business world, personal computers are ubiquitous, serving as indispensable tools for productivity, data management, communication, and decision-making.

From small businesses to large corporations, computers have streamlined operations and enhanced efficiency.

Similarly, in homes, personal computers have become commonplace, enabling individuals and families to connect with the world, pursue online education, engage in entertainment, and manage various aspects of their lives.

With their versatility and functionality, personal computers have become an integral part of modern life, transforming the way we live and work.

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Answer: a

Explanation:

Of the options listed, the only effect that can be caused by exposure to infrared light is overheating (option a).

Infrared light is a form of electromagnetic radiation that is invisible to the human eye but can be detected as heat. When exposed to high levels of infrared light, such as in close proximity to a powerful infrared source, it can lead to overheating of the body or objects. Skin cancer (option b) is not directly caused by infrared light. It is primarily associated with overexposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. UV radiation falls in the higher energy range of the electromagnetic spectrum, while infrared radiation has lower energy. Radiation sickness (option c) is caused by exposure to high-energy ionizing radiation, such as gamma rays or X-rays. Infrared light does not possess enough energy to cause ionization and is therefore not capable of inducing radiation sickness. Memory loss (option d) is not a known effect of exposure to infrared light. Memory loss can be attributed to various factors, such as neurological conditions, head injuries, or aging, but not specifically to infrared light exposure. In summary, while exposure to high levels of infrared light can lead to overheating, it does not cause skin cancer, radiation sickness, or memory loss.

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The displacement of the dog can summarized as 4 km north and 5 km east with a resultant magnitude of 6.4 km.

The displacement of the dog is the change in the position of the dog from the initial position to the final position.

The displacement is the straight line from point A to point F.

Straight line from A to F is calculated as follows;

r = √(4² + 5²)

r = 6.4 km

Thus, the displacement of the dog can summarized as 4 km north and 5 km east with a resultant magnitude of 6.4 km.

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Answer:

The energy that an object has due to its location in a gravitational field is known as gravitational potential energy. When an object is close to the surface of the Earth, when the gravitational acceleration can be assumed to remain constant at roughly 9.8 m/s2, gravitational potential energy is most frequently used.

Explanation:

Answer:

hey so this website called quiz-let helps you it will give u the answer for every question i use it sometimes when im confused on a test.

It takes 0 seconds for the catcher to stop the ball and the ball travels 0 meters before stopping.

To find the time it takes for the catcher to stop the ball, you can use the equation:

time = distance / velocity

In this case, the distance is zero (since the ball is stopped) and the velocity is 21.80 m/s. Plugging these values into the equation gives us:

time = 0 / 21.80

time = 0 s

So, it takes 0 seconds for the catcher to stop the ball.

To find the distance the ball travels before stopping, you can use the equation:

distance = 1/2 * acceleration * time^2

In this case, the acceleration is the force applied to the ball divided by the mass of the ball, or (-360 N) / (0.18 kg) = -2000 m/s^2. The time is the time it takes the ball to stop, which we just found to be 0 s. Plugging these values into the equation gives us:

distance = 1/2 * (-2000 m/s^2) * (0 s)^2

distance = 0 m

So, the ball travels 0 meters before stopping.

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By supplying the fundamental knowledge required to create new instruments and techniques for medical use, physics enhances our quality of life

From can openers, light bulbs, and mobile phones to muscles, lungs, and brains; from paintings, piccolos, and pirouettes to cameras, vehicles, and cathedrals; from earthquakes, tsunamis, and storms to quarks, DNA, and black holes, physics aids us in understanding the workings of the world around us.

The science of physics is the most fundamental and has many applications in contemporary technology. Because it makes it possible for smartphones, computers, televisions, watches, and many other modern technologies to function automatically, physics is crucial to modern technology.

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Answer:

It doesn't interact with baryonic matter and it's completely invisible to light and other forms of electromagnetic radiation, making dark matter impossible to detect with current instruments. But scientists are confident it exists because of the gravitational effects it appears to have on galaxies and galaxy clusters.

Explanation:

Answer:

neither A nor B

Explanation:

There are a lot of reasons, quite handful of them. About why scientists repeat experiments.

They do so sometimes to persistently verify the results they have gotten. Another reason is so as to be able to study and improve them in other ways.

This is just 2 of the very many reasons why scientists repeat experiments. Remember the popular saying, that practice makes perfect? yeah, that's just it

I hope you understand. Thanks

Answer:

Explanation:

Speed of electrical nerve signal = 33 m /s

Distance travelled = 1.3 m

time taken = distance / speed

= 1.3 / 33  

= .039 s

= 39 ms ( millisecond )  .

Answer:

PE = 137.2931 J

Explanation:

PE = 137.2931 J

Answer:

238 900 miles

Explanation:

google said it.

Answer:

The diameter is \(d = 8.18*10^{-19} \ m\)

Explanation:

From the question we are told that

   The value of one atomic mass unit is \(u = 1.66 *10^{-27} \ kg\)

    The density of the proton is  \(\rho = 5.8 *10^{27} \ kg/m^3\)

Generally the volume of the proton (sphere)is mathematically represented as

     \(V = \frac{4}{3} * \pi * r^3\)

Generally this volume can also be evaluated as

      \(V = \frac{u}{\rho}\)

=>   \(V = \frac{1.66 *10^{-27}}{5.8*10^{27}}\)  

=>   \(V = 2.862 *10^{-55} \ m^3\)

So

\(2.862 *10^{-55} = \frac{4}{3} * 3.142 * r^3\)

=>   \(r^3 = 6.832 *10^{-56}\)

=>  \(r = 4.088 *10^{-19} \ m\)

Now the diameter is mathematically represented as

    \(d = 2 * r\)

=> \(d = 2 * 4.088 *10^{-19}\)

=> \(d = 8.18*10^{-19} \ m\)

The total drag force acting on a sphere with a diameter of 12 cm and exposed to airflow at 1 atm and 5°C is therefore measured to be 5.2 N. Therefore, the friction drag coefficient is 0.0115.

When determining whether a flow pattern is laminar or turbulent while passing through a pipe, Reynolds number, a dimensionless quantity, is used. The relationship between inertial and viscous forces is what determines the Reynolds number. Friction is caused by surface irregularity, according to observations made at the microscopic level. Variety of Friction Friction can be divided into two categories, which are as follows: internal rubbing

Cdf = 0.2*0.3/5.2

Cdf = 0.06/5.2

Cdf = 0.0115

when 5.2/0.3 = 0.2

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Answer:

0.2seconds

Explanation:

Speed=distance/time

15.5m/s=3.00m/x seconds

x=3/15.5

x=0.1935

x=0.2sec

hope this helped

A material in which electrons are not able to move easily is known as an insulator, on the other hand, the material in which electrons are able to move easily is known as the conductor, therefore the correct answer is option B.

The elements of the periodic tables that behave as metals, as well as the nonmetal in some chemical or physical aspects, are known as metalloids. Some examples of metalloids are Boron, silicon, germanium, arsenic, antimony, tellurium, etc.

As given in the problem we have to find out the term for material for which electrons are not able to move easily,

The term "insulator" refers to a substance in which electrons cannot move around freely, whereas the term "conductor" refers to a substance in which electrons may flow around freely. Therefore, option B is the right response.

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Answer: There would probably be a land slide.

Explanation: The earthquake would break up the dry steep hill and then it would break up and cause a land slide.

This is my first answer! :)

Answer:

below

Explanation:

PE = mgh = 62 * 9.81 * 1.3 = 791 J

  now lose 200 J    to air resistance  = 591 J   that is converted to kinetic energy

KE = 1/2 m v^2

591 = 1/2 (62)(v^2)     shows v = 4.4 m/s

The average velocity of the particle between t = 2.0 s and t = 4.0 s is 4 m/2.0 s = 2.0 m/s.

Average velocity is the rate of change of an object's position, expressed as a vector quantity that tells both the speed and direction of the object's motion.

The average velocity of the particle between t = 2.0 s and t = 4.0 s can be calculated by taking the difference in the x-position of the particle at t = 4.0 s and t = 2.0 s, and dividing it by the difference in the time.
The x-position of the particle at t = 2.0 s is 4 m and the x-position of the particle at t = 4.0 s is 8 m.
Therefore, the difference in the x-position is 8 m - 4 m = 4 m.
The difference in time is 4.0 s - 2.0 s = 2.0 s. Therefore, the average velocity of the particle between t = 2.0 s and t = 4.0 s is 4 m/2.0 s = 2.0 m/s.

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Answer:

Explanation:

Use kinematic equation v² = u² + 2as

Rearrange for distance

s = (v² - u²) / 2a

Realize that at the top of its flight, the ball has zero velocity and gravity is acting downward in an assumed upward positive reference frame.

s = (0² - 29²) / (2(-9.8))

s = 42.90816...

s = 43 m

A thermodynamic process is a chemical or physical process that takes place in a thermodynamic system, which changes the system from an initial state to a final state. There are different forms of thermodynamic processes. Isobaric and isovolumetric processes are two of these processes.

The key difference between the isobaric and isovolumetric processes is that the isobaric process occurs at constant pressure while the isovolumetric process occurs at constant volume.

When two magnets are close to each other, the magnets experience a repulsive or attractive force. The magnetic field strength is affected by the orientation of the magnet.

The direction in which the bar magnet obtains its maximum magnetic property is called the orientation of the magnet. The magnetic field strength depends on the orientation of the magnet.

The magnetic field lines emerge from the north pole and end in the south pole. When the two bar magnets of opposite poles face each other, an attractive force will be produced and magnetic field strength increases.

When the bar magnet of the same poles faces each other, repulsive force will produce and magnetic field strength decreases. Hence from the orientation of the bar magnet,  the magnetic field strength gets affected.

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Answer:

The bin moves 0.87 m before it stops.

Explanation:

If we analyze the situation and apply the law of conservation of energy to this case, we get:

Energy Dissipated through Friction = Change in Kinetic Energy of Bin (Loss)

F d = (0.5)(m)(Vi² - Vf²)

where,

F = Frictional Force = μR    

but, R = Normal Reaction = Weight of Bin = mg

Therefore, F = μmg

Hence, the equation becomes:

μmg d = (0.5)(m)(Vi² - Vf²)

μg d = (0.5)(Vi² - Vf²)

d = (0.5)(Vi² - Vf²)/μg

where,

Vf = Final Velocity = 0 m/s (Since, bin finally stops)

Vi = Initial Velocity = 1.6 m/s

μ = coefficient of kinetic friction = 0.15

g = 9.8 m/s²

d = distance moved by bin before coming to stop = ?

Therefore,

d = (0.5)[(1.6 m/s)² - (0 m/s)²]/(0.15)(9.8 m/s²)

d = 0.87 m

The ray does not bend when it enters the semi circular glass block - Light ray incident on semicircular block at 90 degrees, therefore there is no change in the direction of ray at P.

Electromagnetic radiation that falls within the region of the electromagnetic spectrum that the human eye can see is known as light or visible light.

Light is electromagnetic radiation that the human eye can perceive. From radio waves with wavelengths measured in meters to gamma rays with wavelengths shorter than around 1 1011 meters, electromagnetic radiation occurs throughout an incredibly broad range of wavelengths.

Light governs our sleep-wake cycle and is crucial to our health and wellbeing. In actuality, "light" that is visible is a type of radiation, which is just energy that moves in the form of electromagnetic waves. It can alternatively be explained as a flow of "wave-packets," or particles, known as photons.

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