if an incoming wave reflected wave have a high pitched frequency, the combine to form a standong wave true or flase

Answer:

The mass of the cart-box system is now 20 kg (15 kg + 5 kg). The inertia of the cart-box system has also increased as the additional 5 kg box requires more force to move than just the 15 kg cart alone. So, the cart-box system has both greater mass and greater inertia than the cart alone.

Explanation:

The average speed of the particle is  4.7 calculated by dividing the total distance traveled by the time taken.

The particle's average speed in m/s is 4.7. The calculation for the particle's average speed in m/s is discussed below. Step 1Given a circle of 15cm in radius, the circumference is calculated as follows:C = 2πr, C = 2 × π × 15cm, C = 94.25cm.

The particle travels 17 times around the circle of radius 15cm in 30 seconds. Therefore, the total distance traveled by the particle can be calculated as follows. Total Distance = 17 × Circumference. Total Distance = 17 × 94.25cm. Total Distance = 1602.25cm. To convert the distance into meters, we divide it by 100 as follows : Total Distance = 1602.25cm = 16.0225m. Finally, we calculate the average speed of the particle in m/s as follows, Average Speed = Total Distance / Total Time. Average Speed = 16.0225m / 30s. Average Speed = 0.534m/s × 8.75 = 4.7. Therefore, the particle's average speed in m/s is 4.7.

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One drawback to nuclear energy is the issue of radioactive nuclear waste and its proper disposal.

Nuclear power plants generate a significant amount of radioactive waste during the process of nuclear fission. This waste consists of highly radioactive materials that pose serious health and environmental risks if not handled and stored properly.

The main concern with radioactive waste is its long half-life, which can range from thousands to millions of years, depending on the specific isotopes involved. This means that the waste remains hazardous for an extended period of time, requiring careful management and containment to prevent any release into the environment.

Proper disposal of radioactive waste is a complex and challenging task. Current methods include deep geological repositories, where the waste is stored in underground facilities designed to isolate it from the biosphere. However, the selection and construction of such repositories involve careful consideration of geological stability, security, and long-term monitoring to ensure the waste remains isolated and does not contaminate groundwater or surface ecosystems.

Despite the best efforts to ensure safe storage, concerns regarding the long-term stability of repositories and the potential for human error or unforeseen natural events, such as earthquakes or volcanic activity, still exist. The risk of leakage or accidental release of radioactive waste into the environment remains a significant drawback of nuclear energy.

Another concern associated with nuclear energy is the potential for accidents or meltdowns at nuclear power plants. While modern reactors are designed with multiple safety features and protocols to prevent such incidents, history has shown that accidents can occur. The most notable example is the Chernobyl disaster in 1986, where a reactor explosion released a large amount of radioactive material into the atmosphere, causing immediate deaths and long-term health and environmental consequences.

While such incidents are rare, their potential impact is significant, highlighting the need for stringent safety measures and constant vigilance in the operation and maintenance of nuclear power plants. The fear of accidents and their potential catastrophic consequences can create public apprehension and opposition to nuclear energy.

In addition, the mining and processing of uranium, the main fuel source for nuclear reactors, have their own environmental and social impacts. Uranium mining can lead to habitat destruction, water pollution, and the displacement of local communities. The extraction process also requires energy and resources, contributing to greenhouse gas emissions and other environmental concerns.

Furthermore, the proliferation of nuclear technology and materials poses security risks. The potential misuse of nuclear materials for the development of weapons or by terrorist groups is a global concern. Strict safeguards, international cooperation, and effective non-proliferation measures are necessary to prevent the misuse of nuclear technology.

In conclusion, while nuclear energy offers certain advantages such as low carbon emissions and high energy density, it is not without drawbacks. The issue of radioactive nuclear waste and its safe disposal, the risk of accidents or meltdowns, environmental impacts associated with uranium mining, and security concerns related to proliferation are significant challenges that need to be carefully managed. Continued research and development in the field of nuclear energy aim to address these drawbacks and improve the overall safety and sustainability of nuclear power.

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Answer:

Positively charged objects attract negatively charged objects.

Explanation:

This is due to a law that states 'like forces attract while unlike forces repel. This same concept applies to magnetism. If you put two similar poles together, for example; if you place two south poles together. You feel a separating force between the two poles. But if you place two opposite poles together they attract each other. Hope i helped.

Answer:

Positively charged objects attract negatively charged objects.

Explanation:

hope this helps

the goose has a mass of \(22.6 lb\) (pounds) and is flying at \(11.1\) miles/h (miles per hour). The kinetic energy of the goose in joules is \(5858.7 J\) .

Energy is the capacity to do work. It is the ability to move an object from one place to another or to cause a change in the object. Energy comes in many forms, including mechanical, electrical, chemical, thermal, and nuclear. Energy can be converted from one form to another, and it can also be stored and released. Energy is vital to many everyday activities, and it is necessary for the functioning of countless systems and processes. Humans have harnessed energy from the environment in various ways since the dawn of civilization. Today, energy sources such as fossil fuels, nuclear power, solar power, and hydropower are widely used to meet our energy needs.

The kinetic energy (KE) of an object is equal to its mass multiplied by the square of its velocity, divided by two.

KE = (mass× velocity2) \(/\) \(2\) =\((22.6lb* (11.1 mi/h)2) / 2\)\(=\)\((22.6 lb * 123.21 mi2/h2) / 2\) =\((2796.186 lb mi2/h2) / 2\) = \(1398.093 lb mi2/h21 lb mi2/h2 = 4.214 J\)

KE = \(1398.093 lb mi2/h2 * 4.214 J5858.7 J\)

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Answer: 1200 000 J = 1.2 MJ

Explanation: Ek = 0.5 mv² = 0.5 · 1500 kg· (40 m/s)²

Answer:

uhm

Explanation:

the water cycle describes the continuous moving of water on earth with steps called evaporation condensation precipitation the other one

Answer:

The water cycle consists of Evaporation, Convection, Precipitation and Collection :3

Explanation:

:3

Explanation:

Transmutation means change in neutron numbers u

Like for example

When Potassium (N=19 ) goes through beta decay it forms (N=20)

Here no change in neutrons (Same 28)

So no trnasmutaions.

Option B

another answer for acellus is 143 m/s it worked for me

The speed of the charge is approximately 2.857 m/s.

To find the speed of the charge, we can use the formula for the magnetic force on a charged particle moving through a magnetic field:

Force (F) = q * v * B * sin(θ)

Where:

F is the force on the charge (given as 2.14 x \(10^-8\)  N),

q is the charge of the particle (given as 2.99  x \(10^-6\)C),

v is the speed of the charge (what we want to find),

B is the magnitude of the magnetic field (given as 5.00 x \(10^-5\) T),

θ is the angle between the direction of motion and the magnetic field (given as 10.0°).

First, we need to convert the angle from degrees to radians:

θ (in radians) = 10.0° * (π / 180°) ≈ 0.174532925 radians

Now, we can rearrange the formula to solve for the speed (v):

v = F / (q * B * sin(θ))

Substitute the given values into the equation:

v = 2.14 x \(10^-8\) N / (2.99 x \(10^-6\) C * 5.00  x \(10^-5\)  T * sin(0.174532925))

v ≈ 2.857143 m/s

Therefore, the speed of the charge is approximately 2.857 m/s.

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Answer:

a)

\(f = 6.25 \times {10}^{14} \: hz\)

b)

\(4.8 \times {10}^{ - 7} \: m\)

Explanation:

I added a photo of my solution

The size difference between the upper and lower parts of the child in the image is caused by refraction, where light bending in water makes the submerged part appear bigger.

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660 newtons

830 newtons

no

additional force would be 350 newtons

Answer:

Loyalty-Being loyal is important to being a good citizen because it shows that you acknowledge the effort others have put in to what you are doing and it shows that you enjoy what you are doing. Loyalty is important to a productive community because it promotes good work and effort

Explanation:

Plant fossils typically occur as carbonized impressions between layers in rocks due to a combination of factors. The primary reason is that chemical reactions during fossilization often leave behind only the carbon (a). Additionally, plants may begin to decay before fossilization (b), and they can be easily moved by winds and water (c), which may contribute to their occurrence as carbonized impressions in rocks.

Plant fossils typically occur as carbonized impressions between layers in rocks because chemical reactions leave behind only the carbon. During the fossilization process, the organic material of the plant decays, leaving behind a carbon imprint. This carbon is then compressed and preserved between layers of rock, forming a fossil. Plant fossils are less likely to be scavenged by animals compared to animal fossils, and while they may be moved by winds and water, their carbonized impressions are more likely to remain intact. However, the decay of organic material can also be a factor, as plants may begin to decay before fossilization can occur.

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The deflecting electric field in the ink-jet printer is approximately 5.90 x 10^5 V/m. In an ink-jet printer, the charged ink drops are steered vertically using an electric field.

The electric field causes the drops to experience a force, leading to their vertical acceleration. In this scenario, each ink drop has a mass of 10^-11 kg and a charge of 590095 extra electrons.

To calculate the deflecting electric field, we can use the equation F = ma, where F represents the force experienced by the ink drop, m represents its mass, and a represents its vertical acceleration. The force experienced by the drop is given by the equation F = qE, where q represents the charge of the ink drop and E represents the electric field.

Combining these equations, we have qE = ma. Rearranging the equation to solve for E, we get E = ma/q.

Substituting the given values, we have E = (10^-11 kg) x (104 m/s^2) / 590095 electrons.

Simplifying the calculation, we find E ≈ 5.90 x 10^5 V/m.

Therefore, the deflecting electric field in the ink-jet printer is approximately 5.90 x 10^5 V/m, which is the value needed to steer the charged ink drops vertically.

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Answer:

The correct option is D

Explanation:

In trying to achieve what the student wanted to see, which is to see the relationship between the weight the cord can hold and how long the cord will stretch. Since the origin of the graph is from zero, the value plotted on the vertical axis would be just the length caused by each weights. Thus, the original length would have to be subtracted from the measured length to determine the actual length caused by the weight added to the cord.

Explanation:

san po ung pagpipilian ?

The table suggests that the acceleration of the marble increases steadily over time due to the increasing force being applied to it. This is because acceleration is directly proportional to the force applied, according to Newton's second law of motion (F = ma).

Newton's second law is a quantitative description of the changes that a force can produce on the motion of a body. It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.

Newton's second law is often stated as F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a). This means the more mass an object has, the more force you need to accelerate it. And the greater the force, the greater the object's acceleration.

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Answer:

490 W

Explanation:

F = ma = (50 kg)(9.8 m/s²) = 490 N    (Weight = W = mg)

Work = W = Fd = (490 N)(5 m) = 2450 J

Power = W/t = 2450 J / 5 s = 490 J/s = 490 W  (watts)

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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Answer:

770.1 m

Explanation:

From the question given above, the following data were obtained:

Velocity (v) = 45.3 m/s

Time (t) = 17 s

Displacement (d) =?

Velocity is defined according to the following formula:

Velocity = Displacement /Time

With the above formula, we can obtain the displacement of the ball as follow:

Velocity = Displacement /Time

45.3 = Displacement / 17

Cross multiply

Displacement = 45.3 × 17

Displacement = 770.1 m

Therefore the displacement of the ball is 770.1 m

Answer: 770.1     gravity multiplied by time

Answer:

Explanation:

The Law of Momentum Conservation says that the mass times the velocity of the truck + the mass times the velocity of the car BEFORE they hit has to = the mass of the tuck times the velocity of the truck + the mass of the car times the velocity of the car AFTER they hit. If we don't know the velocity of the car, we can solve for it, and then we can say that Momentum has been conserved. Before I do that, I am going to tell you that 72 kmh is 20 m/s.

\((3500*20+2000x)_b=0_a\) The 0 is because if there is no velocity after they hit, it doesn't matter what the velocities are; anything times 0 is 0.

70,000 + 2000x = 0 where x is the velocity of the car

70,000 = -2000x so

x = -35.

As long as the car was initially traveling 35 m/s in the opposite direction )hence, the - sign), momentum is conserved. So I'm not sure exactly how you can answer this otherwise.

Given parameters:

Duration of crash = 9min

Velocity before crash = 2000 yards per second

Unknown:

Acceleration of the plane = ?

Solution:

Acceleration is the change of velocity with time.

  Acceleration  = \(\frac{V - U}{t}\)

where v is the final velocity

          u is the initial velocity

          t is the time taken

We need to convert the time into seconds from min;

                      60s  = 1 min

                                So, 9min = 60 x 9 = 540s

So input the parameters and solve;

                  Acceleration = \(\frac{2000 - 0 }{540}\)  = 3.7yards/s²

The acceleration of the plane is 3.7yards/s²

Answer:the velocity and the kinetic energy of the HSR if it travelled a distance of 180 km in just 1h 30min minutes.  

In your answer, explain how can you know if the HSR has more kinetic energy. How can kinetic energy be transferred or transformed?  

Explanation:suiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

The kinetic energy of the given mass is 2173 kJ. The energy of an object or body due to its movement is called kinetic energy.

It is the energy of an object or body due to its movement. It can be calculated by the formula,

\(KE = \dfrac 12 mv^2\)

Where,

\(m\) - mass = 400 tons = 400000 kg

\(v\) - velocity

First, calculate the velocity.

\(v = \rm \dfrac {180 \km}{1.5 \ hours}\\\\v = 12 km/h\\\\v = 3.3 m/s\)

Now, put the values in the formula,

\(KE = {\rm \dfrac 12 400000\ kg \times (3.3 \ m/s)^2}\\\\KE = 2178000 {\rm \ kg .m^2/s^2}\\\\KE = 2173\rm \ kJ\)

Therefore, the kinetic energy of the given mass is 2173 kJ.

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Answer:

the same number of electron shells

Explanation:

Answer:

Egg Drop Challenge height

The containers will be dropped from an initial height of about 11.5 ft. The second and final drop will be from the second floor (about 19.5 ft).

Explanation:

Answer:

the final velocity of the car is 59.33 m/s [N]

Explanation:

Given;

acceleration of the car, a = 13 m/s²

initial velocity of the car, u = 120 km/h = 33.33 m/s

duration of the car motion, t = 2 s

The final velocity of the car in the same direction is calculated as follows;

v = u + at

where;

v is the final velocity of the car

v = 33.33 + (13 x 2)

v = 59.33 m/s [N]

Therefore, the final velocity of the car is 59.33 m/s [N]

Tiffany has been waiting for weeks to see one particular meteor shower that peaks around august 12. Tiffany is waiting to see Perseid Meteor Shower.

A very bright supermoon known as a "Sturgeon Moon" may make it difficult for photographers to capture this year's climax of the Perseid Meteor Shower tonight (August 12). The Perseid meteor shower, which peaks overnight on August 12 and 13, is one of the most powerful annual meteor showers and occurs between July 14 and September 1. Unfortunately, that falls on the night of this month's full moon, which became fully illuminated yesterday night (Aug. 11). The meteor shower is named after the constellation, the northern constellation Perseus.

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Answer:

With no water displacement it's 2000m.

Explanation:

400 × 500

4 × 5

Add the zeros

Answer:

The answer is 2000m

Explanation:

I hope it helps

Answer:

The answer is C

Explanation: