Sarah goes 36km west then 46km east
what is the displacement

Answer:1/400s

Explanation: Frequency is equal to 1 divided by period therefore period is going to be 1 divided by frequency

Period represented as "T" equals 1 over frequency, "f" (\(T=\frac{1}{f}\)).

\(\Longrightarrow T=\frac{1}{f}\) ; f=400 Hz

\(\Longrightarrow T=\frac{1}{(400 \ Hz)}\)   Note that: \(Hz=s^{-1} \ or \frac{1}{s}\)

\(\Longrightarrow T=\frac{1}{(400 \ \frac{1}{s} )}\)

\(\Longrightarrow T= \boxed{\frac{1}{400} \ s}\)

The last option is correct.

Answer:

6.2 ×10^-25

Explanation:

Ma = mg

a = (m/M)g

\(a = \frac{0.38}{5.98 \times {10}^{24} } \times 9.8 = 6.2 \times {10}^{ - 25} \)

Answer:

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds.

Answer:

Yes using toothpaste and backing soda is whiting because Toothpaste by itself has whiting products in it which eat plaque off your enamel.

Explanation:

Unlike backing

soda it has an acid that cleans surfaces almost like bleach but safe enough to us on your teeth.

Don't use bleach on teeth it an kill you.

The vertical component of the tensions in each rope is 50 N.

Weight of traffic light = w = 100N

The angle at which the ropes are supported = θ = 30

After drawing Free Body Diagram,

The vertical component of tension in each rope =

= 2 X T X sinθ = w

= 100 = 2 X T X sin30

= T = 100 / ( 2 X sin30)

= T = 100 N

Now, tension on vertical component =  

= Tsin30

= 100 X 0.5

= 50 N

The term free body is usually associated with the motion of a free body diagram, a pictorial device used by physicists and engineers. In that context, a body is said to be "free" when it is singled out from other bodies for the purposes of dynamic or static analysis.

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The following information is provided in the problem: A sled with a weight of 19.7 kg is pulled with a force of 42.0 N at an angle of 43.0° across ground where μ₁ = 0.130. We need to find out the normal force that is exerted on the sled.

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A material that doesn't conduct electricity well - such as a plastic/rubber covering, acting as the electrical insulator.

Hope this helps!

The water balloon was dropped from a height of approximately 0.4 meters above the window. This calculation was based on the distance the balloon traveled across the window (1.6m) and the time it took to do so (0.25s) using the kinematic equation.

Assuming the balloon was dropped from rest and air resistance is negligible, we can use the kinematic equation:

d = vi*t + 0.5*a*t²

where d is the distance traveled (1.6m), vi is the initial velocity (0 m/s), a is the acceleration due to gravity (-9.8 m/s²), and t is the time (0.25 s).

Rearranging the equation to solve for the initial height, we get:

vi = (d - 0.5*a*t²)/t

vi = (1.6m - 0.5*(-9.8 m/s²)*(0.25 s)²)/(0.25 s)

vi = 3.14 m/s

Therefore, the balloon was dropped from a height of approximately 0.4 meters above the window (assuming the window is at ground level).

In conclusion, the water balloon was dropped from a height of approximately 0.4 meters above the window. This calculation was based on the distance the balloon traveled across the window (1.6m) and the time it took to do so (0.25s) using the kinematic equation.

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Answer:

A) the ratio of the number of turns in the primary and secondary coils

Explanation: just took the qc

a) The mirror is a concave mirror.

b) The mirror creates a magnified, virtual, and upright image of your face.

c) The required radius of curvature for the mirror can be calculated using the mirror equation, which is given by 1/f = 1/do + 1/di, where f is the focal length of the mirror, do is the object distance, and di is the image distance.

In this case, since the image is virtual, the image distance is negative. The magnification of the mirror is given by -di/do. From the given information, we can set the magnification equal to the given magnification of 1.31 and solve for the object distance.

Using the object distance and the given distance between the face and the mirror, we can calculate the radius of curvature using the formula R = 2f.

d) A ray diagram can be drawn by considering the incident rays from the face to the mirror and using the rules of reflection to determine the path of the reflected rays, which will help visualize the formation of the image.

a) The mirror is concave because it magnifies the face, which indicates that the mirror is diverging the light rays coming from the face.

b) The mirror creates a magnified image because the light rays are diverged by the concave mirror. The image is virtual because the light rays do not actually converge to a real point, and it is upright because the magnification is positive.

c) To calculate the required radius of curvature, we can use the magnification formula -di/do = M, where M is the magnification. Substituting the given values, we have -di/(21.5 cm) = 1.31. Solving for di, we find di = -28.22 cm. Since the image is virtual, the image distance is negative. Now, using the mirror equation 1/f = 1/do + 1/di, we can substitute the known values and solve for the focal length f. With the focal length, we can calculate the radius of curvature using R = 2f.

d) A ray diagram can be drawn by drawing incident rays from the face parallel to the principal axis and using the rules of reflection to determine their paths after reflection. The rays will appear to diverge from a virtual image point behind the mirror. The intersection of these rays can be used to determine the approximate location and size of the virtual image.

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The bargaining power of suppliers for Suncor Energy is influenced by factors such as supplier concentration, specialized inputs, high switching costs, and the potential for suppliers to integrate forwards. Rivalry in the industry is affected by competitor concentration, industry growth rate, high fixed costs, high exit barriers, and low  differentiation.

1. Bargaining Power of Suppliers:

The bargaining power of suppliers for Suncor Energy can be analyzed based on several factors. If the suppliers in the industry are concentrated and there are only a few of them, it may give them more power to dictate terms and conditions. Additionally, if the suppliers provide specialized inputs that are rare or unique, it can increase their bargaining power. High switching costs, where it is disruptive or expensive for Suncor Energy to change suppliers, can also strengthen the suppliers' position. Furthermore, if suppliers have the ability to integrate forwards, such as low-cost airlines cutting out the use of travel agents, it can further impact the bargaining power.

2. Rivalry in the Industry:

The level of rivalry in the industry can be assessed by considering various factors. Competitor concentration and balance play a role in determining the intensity of competition. If there are a few dominant players or a balanced market share distribution, it can impact the competitive dynamics. The industry growth rate is also important as a high growth rate can lead to more intense rivalry. High fixed costs, such as those associated with infrastructure or equipment, can create barriers to entry and affect the competitive landscape. Similarly, high exit barriers, which make it difficult for companies to leave the industry, can contribute to intense rivalry. Finally, low differentiation among competitors can lead to price-based competition and increased rivalry.

By analyzing these factors, Suncor Energy can gain insights into the overall industry structure and attractiveness. Additionally, assessing recent and expected future changes for each force can help anticipate shifts in the competitive landscape and make informed strategic decisions.

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The linear speed of a point on the tip of the propeller, at a radius of 1.73 m, as seen by the pilot is approximately 237.9 m/s. As seen by an observer on the ground, the linear speed of the same point is approximately 174.7 m/s.

To find the linear speed of the point on the tip of the propeller, we can use the formula v = ωr, where ω is the angular velocity and r is the radius.

(a) As seen by the pilot, the linear speed can be found by converting the angular velocity from rev/min to rad/s and multiplying it by the radius:

ω = (2500 rev/min) * (2π/60 sec/min) = 261.8 rad/s

v = ωr = (261.8 rad/s) * (1.73 m) ≈ 237.9 m/s

(b) As seen by an observer on the ground, we need to take into account the relative motion between the airplane and the ground. We can use the formula for relative velocity:

v_ground = v_airplane + v_propeller

where v_airplane is the velocity of the airplane relative to the ground (599 km/h or 166.4 m/s) and v_propeller is the linear velocity of the point on the propeller as seen by the pilot (237.9 m/s from part a).

v_propeller = (599 km/h) - (237.9 m/s) ≈ 361.5 m/s

v_ground = v_airplane + v_propeller ≈ 166.4 m/s + 361.5 m/s ≈ 174.7 m/s

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Answer:

the foiley like color doesn't absorb the heat it bounces off of it. it would be much better to have a black blanket

Answer:

1323

Explanation:

we know ,

weight = m*g

= 135 * 9.8 ( acceleration due to gravity in earth is 9.8 m/S2)

= 1323 N

Answer:

D

Explanation:

If the ball was in motion there would be kinetic energy but as there is no movement there is no kinetic energy only potential

Answer:

force of gravity; weight

Explanation:

Weight is the force of gravity on an object and it is measured in Newtons. On this spring scale, each line equals one Newton.

Answer:

212 f

Explanation:

Our atmosphere is transparent to solar radiation, but it traps the energy that causes the greenhouse effect because the solar energy absorbed by Earth is reradiated as longer-wavelength radiation.

The atmosphere is transparent to incoming solar radiation, which is mostly visible light and short-wavelength radiation. However, the Earth absorbs some of this solar radiation and heats up.

The Earth then radiates this heat energy back out to space as longer-wavelength radiation, mostly in the form of infrared radiation. The greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, are able to absorb this longer-wavelength radiation and trap some of the heat energy in the atmosphere, causing the greenhouse effect.

Hence, this is why the atmosphere is transparent to solar radiation but traps the energy that causes the greenhouse effect.

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Answer:

What is most widely accepted today is a the giant-impact theory. It proposes that the Moon formed during a collision between the Earth and another small planet, about the size of Mars. The debris from this impact collected in an orbit around Earth to form the Moon.

If the engine of a personal watercraft suddenly shuts off, the answer to what happens next depends on the specific circumstances. In some cases, the operator may still be able to maneuver the vessel even with the engine off. This could be the case if the watercraft has enough momentum and direction to glide along without the engine.

However, in other cases, losing the engine may mean losing the ability to steer the vessel. This could result in the watercraft continuing to move in the direction it was going before the engine stopped. In this situation, the operator would have to rely on other methods to slow down or stop the vessel, such as using a manual kill switch or turning off the fuel supply.

Alternatively, if the engine fails completely and suddenly, the watercraft could come to a full stop fairly quickly, leaving the operator without any ability to steer. It is also possible that the vessel could slow down and start moving in a circular pattern, depending on factors like wind, waves, and current.

Ultimately, the key to staying safe while operating a personal watercraft is to be prepared for all scenarios and to have the necessary skills and equipment to handle unexpected situations like engine failure.

When operating a personal watercraft, if the engine shuts off, the correct answer is (b). You lose the ability to steer and the vessel will continue to move in the direction you were going. When the engine stops, the watercraft loses propulsion, which means there is no thrust being generated to move it forward or change its direction. As a result, the personal watercraft will continue to coast along the same path due to its momentum, making it difficult to steer or control. To regain control and steer the vessel, you need to restart the engine and generate enough thrust to maneuver effectively.

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Answer:

A) s=1/2at^2

t=√(2s/a)=√(2x400)/10.0)=9.0s

B) v=at

v=10.0x9=90m/s

ANSWER:

1. C. Wave X and Wave Y share the same speed.

2. D. The speed of a wave is affected by the properties of the medium it is traveling through, not amplitude.

STEP-BY-STEP EXPLANATION:

The amplitude of a wave does not affect the speed at which the wave travels. Both wave A and wave B travel at the same speed. The speed of a wave is only altered by alterations in the properties of the medium through which it travels.

Therefore, in the first art the correct answer is C. Wave X and Wave Y share the same speed.

If the medium is uniform (does not change), the speed of the wave will be constant.

Therefore, the correct answer is: D. The speed of a wave is affected by the properties of the medium it is traveling through, not amplitude.

Answer:

The quadratic function models the path of the rocket. When we substitute an x value, we can determine the height in feet of the rocket.

To determine the height it was launched from, we would look at the y-intercept. This represents the starting value, as time = 0 in this point (cannot have negative time).

To determine how far the rocket traveled, we would look at the positive x-intercept of the expression. At this point, height = 0, so we can see the distance from start to finish of the rocket.

To determine the greatest height achieve, we would look at the vertex of the parabola generated from the given function. Using (-b/a, f(-b/a)), we can determine the greatest height achieved.

Answer:

Objects with mass exert forces on each other via the force of gravity. This force is proportional to the mass of the two interacting objects, and is inversely proportional to the square of the distance between them. The factors G, M, and r are the same for all masses at the surface of the Earth.

Answer: the displacement is 0

Explanation:

Displacement is defined as the difference between the final position and the initial position.

now, one time period is defined as the time that the pendulum needs to do a full cicle (so after one time period, the position of the pendulum returns to the same place) this means that the final position and the initial position is the same, then the displacement is 0.

Detached listening can hinder effective communication and understanding between individuals. It is important for Jim to be actively involved and attentive during his meeting with his academic advisor to ensure he receives the necessary guidance and support for his academic decisions.

Jim is displaying the style of listening known as "detached." This style of listening is characterized by a lack of attention, interest, or engagement in the conversation. Jim's distraction with social media on his phone shows that he is not actively participating or focusing on what his academic advisor is saying. Additionally, his belief that the conversation is pointless because he plans to change his major indicates a disinterest in the discussion and a lack of motivation to actively listen and engage with his advisor.

Detached listening can hinder effective communication and understanding between individuals. It is important for Jim to be actively involved and attentive during his meeting with his academic advisor to ensure he receives the necessary guidance and support for his academic decisions. By actively participating and listening, he can make more informed choices about his major and benefit from the advice and expertise of his advisor.

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Jim is displaying detached listening as he is being physically present in conversation with his academic advisor but his focus is elsewhere, particularly, his phone.

The style of listening that Jim is displaying is detached. This is because he is not paying attention to his advisor and is instead distracted by his phone. Detached listening is when one is physically present in a conversation but not mentally or emotionally engaged. Examples include browsing on the phone or thinking about other things while someone is talking.

In contrast, active or involved listening would involve fully concentrating, understanding, responding, and then remembering what is being said. Considering that Jim is mainly focused on his phone, he is not displaying any signs of this type of engagement with his advisor, hence, detached is the appropriate choice to describe his listening style.

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Explanation:

Given that,

The box of oranges cannot exceed a mass of 10.222 Kg if we are sending to a friend by mail.

The mass of each orange is 198 g

We know that,

1 kg = 1000 g

10.222 kg = 10.222×1000 g

Let there are n number of oranges. So,

\(n=\dfrac{10.222\times 1000\ g}{198\ g}\\\\n=51.92\approx 52\ \text{oranges}\)

It means she can send 52 oranges and it is maximum quantity.

Answer:

C

Explanation:

The gravitational force of the Sun increased

If  the mass of the Sun increased during the formation of the solar system, the gravitational force of the Sun increased.

A massive concentration of interstellar gas and dust formed a molecular cloud that would become the sun's birthplace before the solar system existed. Cold temperatures caused the gas to clump together, increasing its density steadily.

Gravity continued to collapse the material onto the developing solar system, resulting in the formation of a star and a disc of material from which the planets would form. According to NASA, the newborn sun eventually accounted for more than 99% of the mass of the solar system (opens in new tab).

When the pressure inside the star became so high that fusion occurred, converting hydrogen to helium, the star began to blast a stellar wind, which helped clear out debris and prevented it from falling inward.

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Answer:

60 - 45 = A. 15

Explanation:

Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

A flat or highly polished surface called a plane mirror reflects light or waves to create an image. It is a polished, smooth surface that creates a virtual representation of the actual object.

A plane mirror is a surface on which an image can only be produced by at least two light beams. The intersection of these two beams can occur inside the mirror or appear to occur somewhere behind the mirror.

The image that follows illustrates how an object appears when viewed via a plane mirror.

Therefore, 60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

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true. condensation is when gas converts to liquid. the molecules move slower because of a loss of thermal energy, so it forms liquid