Newton’s 2nd Law: F=ma. If you push a shopping cart with 130 N of force, and it accelerates at 3 m/s², what is the mass of the cart?

Opportunities for collaboration, enhancing the learning experience, own pace, within a defined timeline, and accommodating different learning styles and schedules. is the benefit of an open course in terms of completing a course sequentially

An open course typically offers learners an orderly way to complete a course sequentially by breaking down the course material into smaller modules or units.

An open course allows learners to access course materials and complete assignments in a structured, step-by-step manner.

An open course provides a clear path for learners to follow, making it easier to stay organized and on track.

An open course often includes interactive features and opportunities for collaboration, enhancing the learning experience.

An open course typically allows learners to work at their own pace, within a defined timeline, accommodating different learning styles and schedules.

An open course can be accessed from anywhere with an internet connection, allowing for greater flexibility and accessibility.
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Question

What is the benefit of an open course in terms of completing a course sequentially?

Answer:

Reflected

Explanation:

During the process of reflection whatever that is sent forth e.g light comes back (reflects)

Answer:

transmitted

Explanation:

took quiz

Answer:c 40kg

Explanation:

Answer:

B. 30 kg * m/s

Explanation:

college board answer

Answer:

1200

Explanation:

f=ma

f_ force

m_ mass

a_ acceleration

Therefore, option c) is the correct statement since the image produced by a convex mirror is always smaller than the object and hence larger than one produced by a plane mirror in its place.

A convex mirror is a spherical mirror with its reflective surface bulging outward, away from the incident light. It is also called a diverging mirror since it diverges the incoming light rays.

The image formed by a convex mirror is always virtual, meaning that it cannot be projected on a screen. It is formed by the apparent intersection of the reflected light rays, and it appears to be behind the mirror. Since the light rays are diverged by the convex mirror, the image produced is always smaller than the actual object. Hence, option e) is false.

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The resistor dissipates 10W of power.

The current flowing through the resistor is first calculated using Ohm's law (V = I R). V = 9 V is the voltage applied across the resistor, and R = 100? is the resistor's resistance. After that, we can calculate the power lost by the resistor using the power rule (P = I V).

A resistor develops current when a source of constant voltage or a battery are applied across it. This current has a distinct flow from a battery's negative terminal to positive terminal. The current's strength stays constant as well. When a battery or an electrical source is connected across it. From a battery's negative terminal to its positive terminal, this special-direction current flows. Additionally, the current's strength doesn't change.

calculation:-

Owing to Ohm's Law, V = IR, hence V = 1 10.

V= = 10v as a result.

power (P) = V * I = 10 * 1 = 10 W.

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Answer:

Here's a list of a few reasons behind cracked or chipped walls:

Moisture-laden walls

Weather conditions

Incompatibility with the surface

Inferior-quality paints

Let’s discuss each of them one by one.

Explanation:

Lots of moisture

In a house, bathroom and kitchen are the two places where there is a lot of moisture and dampness. Therefore, you will see that these places are the first to report the problem of flaky paint. When moisture is absorbed, it passes through various coats of paint, removing the adhesive that sticks the paint to the wall. Therefore, you can spot paint coming off in the form of flakes or like a banana peel. This shows the extra moisture in the walls need to be addressed immediately.

Too much sunlight

Paint often chips off walls due to high temperatures. If direct sunlight hits the walls all day, it can cause the paint to dry out faster. The oil paints start to crack, while latex paints lose their quality to stick to the walls.

Incompatible paints

When painting, it is extremely important to use the same kind of paint on the surface that’s being coated. For instance, if it is latex paint, it isn’t compatible with oil-based paints and shouldn’t be painted on top of each other. If you are planning to use the leftover oil-paint as a second coat over the base coat of latex paint, then be prepared to see the paint coming off sooner than expected.

Also, make sure the surface on which you are about to paint is compatible with the paint you are using. For instance, smooth surfaces require a certain kind of paint and layering that keeps the coating intact. For uneven surfaces, it’s better to go for textured paint. It is important to prime and prep the surface first before applying a coat of paint to make sure the paint doesn’t come off easily.

Low-quality paints

Some paints seem good, especially to your wallet, but once you use them, you will face bad consequences. Inferior-quality paints do not adhere to the walls properly and also do not give a nice finish once the paint job is done. To avoid cracks in the walls, do not use low-quality or expired paints.

Answer:

acceleration = v-u/ t

= 15-10/5

= 5/5

= 1 m/s2

Explanation:

hope this helped you.

Answer:

\(\boxed {\boxed {\sf 1 \ m/s^2}}\)

Explanation:

Acceleration is the change in velocity over the change in time. Therefore, the formula for calculating acceleration is:

\(a= \frac{v_f-v_i}{t}\)

Since the body's velocity increased from 10 meters per second to 15 meters per second 15 m/s is the final velocity and 10 m/s is the initial velocity. The time is 5 seconds.

\(a= \frac{ 15 \ m/s - 10 \ m/s}{5 \ s}\)

Solve the numerator.

\(a= \frac{ 5 \ m/s }{5 \ s}\)

Divide.

\(a= 1 \ m/s/s\)

\(a= 1 m/s^2\)

The acceleration is 1 meter per second squared.

By the half-life of radioactive, the remaining mass of radioactive elements is 4.42 grams.

We need to know about the half-life of the radioactive elements to solve this problem. The radioactive element will decay over time and follow the equation

N = No(1/2)^(t/t'')

where N is the final quantity, No is the initial quantity, λ is the decaying constant, t is time and t'' is the half-life of a radioactive element.

From the question above, we know that

t'' = 10 years

No = 200 g

t = 55 years

Calculate the remaining mass

N = No(1/2)^(t/t'')

N = 200(1/2)^(55/10)

N = 4.42 grams

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Given that the angular speed of the 27-inch-diameter tire is 5π radians per second. We need to find out the speed at which the cyclist is traveling.

The formula that relates angular speed, linear speed and radius of rotation is given as:v = rωwhere,v is the linear speed,ω is the angular speed andr is the radius of rotation.Since the diameter of the tire is 27 inches, the radius is 27/2 = 13.5 inches = 1.125 feet.Substituting the values in the above formula,v = rωv = (1.125) × (5π)v = 5.625π

The speed at which the cyclist is traveling when his 27-inch-diameter tires are rotating at an angular speed of 5π radians per second is 5.625π feet per second.

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Answer:

Newton's Cradle works on the principle of Conservation of momentum

Explanation:

Newtons Cradle works on the principle of Conservation of Momentum, which states that when Collision happens between two or more bodies their Momenta remain conserved that is they remain same before and after collision.

m1*v1 = m2*v2

where m1 and m2 are the masses of the bodies and v1 and v2 are their velocity with which they are travelling.

Considering the case of Newton's Cradle, when a ball on the Left end is lifted to a height and then it is released so it imparts its momentum on the next ball, it seems that all the middle balls remain stationery but what actually happens is that their individual momenta are being transferred from on ball to the other.

Also when this momentum reaches to ball on the right there is no next ball therefore the ball on the rightmost position moves to nearly the same height as the one which was lifted on the left side.

One may note that whenever we lift one ball from any end, the same number of ball will be lifted from the other end. Like if we have lifted two balls from left end so two balls from the rightmost position will be lifted.  

Answer:

hydorgen bond

Explanation: pls give me branliest

Network modifiers are elements or compounds that can alter the network structure of a ceramic glass by breaking the covalent bonds and introducing ionic bonds. The addition of network modifiers can decrease the glass transition temperature (Tg) of a ceramic glass.

Network modifiers are elements or compounds that can alter the network structure of a ceramic glass by breaking the covalent bonds and introducing ionic bonds. The addition of network modifiers can decrease the glass transition temperature (Tg) of a ceramic glass. This is because the introduction of ionic bonds disrupts the continuous network of covalent bonds, which lowers the energy required for the molecules to move and transition from a solid-like state to a liquid-like state. Therefore, the more network modifiers added to a ceramic glass, the lower the Tg will be. Conversely, the removal of network modifiers or the addition of network formers (elements or compounds that enhance the network structure) will increase the Tg of a ceramic glass.

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Answer:

1414.21 nm

Explanation:

diffraction grating equation is

d sin θ = nλ

were looking for λ

d is the distance between the slits = 1/500 mm = .002 mm = 2000 nm

θ is diffraction angle = 45

λ is the wavelength of the light (what were looking for)

n is the order of diffraction = "first-order bright band" = 1

λ = wavelength

θ = 45°

Plug in

2000sin(45°) = (1)λ

=> λ = 1414.21 nm

quizlet cyberphysicscouk

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The three fundamental aspects of an ideal training progression are competency, strength, and power. These three aspects are crucial for building a solid foundation for physical fitness and achieving one's fitness goals.

By focusing on these three aspects in a training progression, one can improve their overall fitness and reduce the risk of injury. All three components need to be taken into account when creating an effective training program.

Hence, the correct option is c.

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The switch that adjusts the magnetic field to be either nearly uniform or have a strong gradient will affect the current in the two coils differently.

When the magnetic field is nearly uniform at the center, the current in both coils will remain relatively unchanged. The uniform field will not induce any significant voltage in the coils, so the current will flow through them as usual.

However, when the magnetic field has a strong gradient, the current in the two coils will be affected differently. The rapidly changing field will induce a voltage in the coils according to Faraday's law of electromagnetic induction. This induced voltage will result in a change in the current flowing through the coils. The magnitude and direction of the induced current will depend on the specific characteristics of the coils and the magnetic field gradient.

In summary, the switch that changes the magnetic field from uniform to having a strong gradient will induce a change in the current flowing through the coils due to the induced voltage.

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The equation to determine the maximum distance the spring will be compressed when the car hits it is x = \(\sqrt{(2mgh)/k}\).

When the car rolls down the hill, it gains kinetic energy equal to its potential energy at the top of the hill: mgh. This kinetic energy will be transferred to the spring upon impact with the crash barrier. The spring will compress until all the kinetic energy is stored as potential energy in the spring.

Using the conservation of energy principle, we can equate the initial potential energy of the car with the potential energy stored in the compressed spring:
mgh = (1/2)kx²

where x is the maximum distance the spring will be compressed. Solving for x, we get:
x = \(\sqrt{(2mgh)/k}\)

So, the maximum distance the spring will be compressed is dependent on the mass of the car (m), the height of the hill (h), the spring constant (k), and the acceleration due to gravity (g).

In summary, the equation to determine the maximum distance the spring will be compressed when the car hits it is x = \(\sqrt{(2mgh)/k}\).

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Answer:

The distance that the honey flowed would be the dependent or outcome variable and the temperature of the honey would be the independent variable.

The dependent variable is what is being measured in an experiment. You can remember it by thinking “it depends on what you’re changing.”

The independent variable in an experiment is what is being changed. You can remember this by thinking “the Independent variable is what I as the scientist change.”

Explanation:

mark me brainliest plz

In the experiment " Temperature" is dependent variable and the distance honey flows is independent variable.

It is the factor that one can purposely control or change to observe its effect , is called independent variable.

It respond to the change in the independent variable , is called dependent variable.

Hence temperature is dependent and distance honey flow is independent variable.

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The mass of a ball is 3.5 kg. It moves down a slope that is inclined at 40 degrees with respect to the horizontal. The base of the slope has a length of 4.8 meters.the ball loses 106.2 Joules of gravitational potential energy when it rolls down the slope.

It is required to determine how much gravitational potential energy the ball loses when it rolls down the slope.For this, we need to use the following formula:ΔPE = mghwhere m = mass of the ball = 3.5 kgg = acceleration due to gravity = 9.81 m/s2h = height from which the ball rolls downLet's analyze the situation. The ball moves down a slope. The potential energy (PE) of the ball at the top of the slope is converted into kinetic energy (KE) as it moves down the slope. The ball gains KE, and it loses PE.The height from which the ball rolls down the slope is given by the following expression:h = length of slope × sin θh = 4.8 × sin 40°h = 3.086 metersSubstitute the given values into the formula for ΔPE.ΔPE = mghΔPE = 3.5 × 9.81 × 3.086ΔPE = 106.2 JoulesTherefore, the ball loses 106.2 Joules of gravitational potential energy when it rolls down the slope.

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Answer:

1000kg

Explanation:

I'm smart I am a genius I know everything so I know it is 1000kg

Answer: The gravitation force between two objects that are 15 m apart, when one of them moves 3 m closer then it increases by a factor of 1 9/16.

Reason:

Mathematically it can be represented as, F = Gm1m2/r2 Where, F is the Gravitational force between two objects measured in Newton (N). G is the Universal Gravitational Constant with a value of 6.674 × 10-11 Nm2kg-2.

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For a droplet exposed to this field, weight is greater than the electric force by 567.126 x 106 N.

The electric force is absent?

The nucleus and electrons are drawn to one another by the electric force. The void created by a positive or negative charge is referred to as an electric field since it generates a field there.

13pC = 13 X 10⁻¹² C

Electric field E = 15000 N/C

Electric force on the charge

= charge x electric field

= 13 x 10⁻¹² x 15000

= 195 x 10⁻⁹ N.

It will act in upward direction as force on positive charge acts in the direction in which electric field exists.

Volume of droplet = 4/3 π R³

R = 2.4 X 10⁻³ m

Volume V = 4/3 x 3.14 x ( 2.4 x 10⁻³)³

= 57.87 x 10⁻⁹ m³

density of water = 1000 kg / m³

mass of water droplet

density x volume

1000 x 57. 87 x 10⁻⁹ kg

= 57.87 x 10⁻⁶ kg .

Weight = mass x g

= 57.87 x 10⁻⁶ x 9.8

= 567.126 x 10⁻⁶ N.

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Question:

Raindrops acquire an electric charge as they fall. Suppose a 2.4-mm-diameter drop has a charge of +13 pC. In a thunderstorm, the electric field under a cloud can reach 15,000 N/C, directed upward. For a droplet exposed to this field, how do the magnitude of the electric force compare to those of the weight force and what is the dircetion of the electric force

Answer:

1. A rubber ball is dropped and bounces back up. The ball has both kinetic and potential at C.

2. A rubber ball is dropped and bounces back up. The ball's potential energy is at its maximum at A.

3. Which best describes the changes in energy as a child goes down a slide? potential energy decreases and kinetic energy increases

4. potential energy decreases and kinetic energy increases? As an object falls its potential energy decreases, while its kinetic energy increases

Explanation:

Part F:

The current (I₁) in the primary coil of the transformer is 0.5 amperes.

Part G:

The efficiency (e) of the nonideal transformer is 95.6%.

To calculate the current in the primary coil, we can use the formula for power (P) in terms of voltage (V) and current (I): P = V × I.

In this case, the power supplied to the device is 60 watts, and the voltage across the device is 20 volts. Thus, we have 60 = 20 × I₁, which can be rearranged to find I₁ = 60 / 20 = 3 amperes.

However, this current refers to the secondary coil of the transformer. To find the current in the primary coil, we need to consider the voltage transformation ratio between the primary and secondary coils.

Since the voltage ratio is given as 120 volts (primary) to 20 volts (secondary), the current in the primary coil can be calculated as I₁ = I₂ × (V₂ / V₁) = 3 × (20 / 120) = 0.5 amperes.

The efficiency of a transformer is defined as the ratio of the output power (Pout) to the input power (Pin), expressed as a percentage.

In this case, the input power can be calculated by multiplying the voltage and current in the primary coil: Pin = V₁ × I₁ = 120 × 2 = 240 watts.

The output power can be calculated by multiplying the voltage and current in the secondary coil: Pout = V₂ × I₂ = 19.4 × 11.8 = 229.72 watts.

Therefore, the efficiency of the transformer can be calculated as e = (Pout / Pin) × 100 = (229.72 / 240) × 100 = 95.6%.

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The term that characterizes the three cytoskeletal filaments is "protein fibers." The cytoskeleton is a network of protein fibers that give cells their shape, keep the organelles in place, and aid in cell division.

The three types of cytoskeletal filaments include: Microfilaments (Actin filaments) - The microfilaments or actin filaments are the thinnest of the three types of cytoskeletal fibers, with a diameter of around 7nm. They are critical for cell structure and motility, as well as cell division. Intermediate filaments - They are 10nm in diameter and provide mechanical support to the cell's plasma membrane and other structures.

Intermediate filaments are also important for maintaining the cell's shape, anchoring the nucleus, and organizing organelles. Microtubules - The thickest of the cytoskeletal fibers, microtubules are cylindrical and have a diameter of 25nm. They're made up of tubulin protein subunits, which aid in cell division, maintain the shape of the cell, and assist in the movement of organelles.

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Distributive shock is the result of poor vessel function.

Shock is a life-threatening medical condition that occurs when the body is not getting enough blood flow. Shock is a result of many underlying conditions that damage the circulatory system, decrease blood volume, or reduce the heart's pumping capacity. Distributive shock is one of the four types of shock.

Distributive shock is a type of shock that occurs as a result of poor blood vessel function. Distributive shock is characterized by a sudden drop in blood pressure, which results in a lack of oxygen and nutrients to vital organs and tissues.

The following three types of distributive shock are common:

In the body, the capillaries are responsible for delivering nutrients and oxygen to the cells while also removing waste materials. In distributive shock, the capillaries are dilated, causing blood to pool in the small veins and venules and leading to a sudden drop in blood pressure. This drop in blood pressure lowers oxygen and nutrient delivery to organs and tissues, resulting in organ failure, brain damage, and death.

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Answer:

101 N

Explanation:

Mass (M) = 10.1 kg

acceleration due to gravity (g) = 10 m/s²

Weight (w) = ?

Now

w = Mg

= 10.1 * 10

= 101 N

Hope it will help :)

The minimum thickness of the film needed to cancel light of wavelength 550 nm reflected toward the eye at normal incidence is zero. No other wavelengths of visible light will be cancelled or enhanced in the reflected light.

To determine the minimum thickness of the film needed to cancel light of wavelength 550 nm reflected toward the eye at normal incidence, we can use the concept of interference in thin films.

For constructive interference to occur and cancel the reflected light, the phase difference between the light waves reflected from the top and bottom surfaces of the film should be an integer multiple of the wavelength.

The condition for constructive interference in a thin film is given by:

2nt = mλ

Where:

n = refractive index of the film

t = thickness of the film

m = integer representing the order of the interference (m = 0 for the first minimum)

λ = wavelength of the incident light

In this case, the incident light is traveling from the medium flint glass (refractive index 1.62) to the fluorite coating (refractive index 1.432).

For the first minimum (m = 0), the phase difference should be zero. Thus, the thickness of the film (t) should satisfy:

2nt = 0

Since the refractive index of the film is less than the refractive index of the medium flint glass, we can assume the film is thinner than a wavelength of light. Therefore, we can disregard the higher-order interference effects.

Now we can solve for the minimum thickness of the film (t) using the equation:

2nt = 0

t = 0 / (2n)

t = 0

The minimum thickness of the film needed to cancel light of wavelength 550 nm reflected toward the eye at normal incidence is zero.

(b) Since the minimum thickness of the film is zero, no other wavelengths of visible light will be cancelled or enhanced in the reflected light.

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Answer:

100 m/s ÷ 8 = 12.5 m/s

Explanation:

You must put multiply (÷)