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Physics

Physics regards the physical aspects of the natural world. It includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.

166,086 Questions

Are agitation and denunciation an effective way of opposing a social evil or do such methods simply breed resistance?

Agitation and denunciation can raise awareness and galvanize support against social evils, highlighting injustices and mobilizing communities for change. However, these methods can also provoke resistance, especially from those who feel attacked or threatened by the criticism. The effectiveness often depends on the context and the balance between raising awareness and fostering constructive dialogue. Ultimately, a combination of agitation with strategic engagement may yield the most positive outcomes.

What part of a light bulb has the most resistance?

the actual filament itself in a light bulb has the most resistance,this is why it glows and produces light,the rest of the bulb is sufficiently engineered to carry the voltage and current applied to it without producing too much heat.

What are all the forces acting on marble rolling up a hill?

When a marble rolls up a hill, the primary forces acting on it are gravity, normal force, and friction. Gravity pulls the marble downward, acting against its upward motion, while the normal force acts perpendicular to the surface of the hill, supporting the marble. Friction occurs between the marble and the hill's surface, opposing the marble's motion and helping to stabilize it. As the marble ascends, these forces determine its acceleration and eventual stopping point.

Definition for infared waves?

Infrared waves are a type of electromagnetic radiation with wavelengths longer than visible light, typically ranging from about 700 nanometers to 1 millimeter. They are commonly associated with heat, as objects emit infrared radiation based on their temperature. Infrared waves are utilized in various applications, including thermal imaging, remote controls, and communication technologies.

How can you make a liquid boil without raising its temperature?

Reduce the surrounding pressure. Lowering the pressure on a liquid reduces its boiling point, causing it to boil at a lower temperature.

What year was UC Irvine's 23-hour experiment that exposed Mercury to radiation for the purpose of forming Gold?

UC Irvine's 23-hour experiment that exposed mercury to radiation in an attempt to form gold took place in 1980. The experiment was part of research into nuclear reactions and aimed to explore the potential for transmutation of elements. However, the results were limited and did not lead to practical methods for gold production.

When to replace the 100-foot steel tape?

A 100-foot steel tape should be replaced when it shows signs of significant wear, such as rust, kinks, or breaks that affect its accuracy. Additionally, if the markings on the tape are fading or illegible, it's time for a replacement. Regular inspections for accuracy, especially if used frequently, can help determine when a new tape is necessary. Overall, maintaining precise measurements is key in deciding when to replace it.

How do you measure mouse speed?

Mouse speed is typically measured in terms of dots per inch (DPI) or counts per inch (CPI). DPI refers to how many pixels your cursor moves on the screen for every inch the mouse physically moves, whereas CPI measures the number of steps or counts the mouse sensor takes to detect movement when the mouse is moved one inch. You can adjust these settings in your computer's mouse settings or using specific software provided by the mouse manufacturer.

Do charter buses have electric outlets to charge your phone?

Many charter buses are equipped with electric outlets or USB charging ports to allow passengers to charge their devices, including phones. However, the availability of these features can vary by bus company and specific vehicle. It's always a good idea to check with the charter service beforehand to confirm whether outlets will be available during your trip.

What does EDP stand for in machine tooling?

In machine tooling, EDP stands for "Electronic Data Processing." It refers to the use of computerized systems to manage and control various aspects of manufacturing processes, including design, production scheduling, and inventory management. EDP enhances efficiency, accuracy, and data management in machining operations, enabling better decision-making and workflow optimization.

What are the features and benefits of a magnetic levitating Bluetooth speaker?

A magnetic levitating Bluetooth speaker uses magnetic technology to float and rotate while playing music wirelessly. This unique design creates a visually striking display and enhances sound quality by reducing vibrations. The benefits include a futuristic aesthetic, improved audio performance, and a conversation starter for tech enthusiasts.

If a student walks 10 m in 2 s what is her average speed?

To calculate average speed, divide the total distance by the total time taken. In this case, the student walks 10 meters in 2 seconds. Therefore, the average speed is 10 m / 2 s = 5 m/s.

Is it true that the higher the density the lower the volume?

Yes, generally speaking, higher density indicates that a substance has more mass per unit volume. Therefore, if the mass remains constant, an increase in density would result in a decrease in volume. However, this relationship is contingent on the substance being considered and its state (solid, liquid, gas).

What does the electrical foot contact do in a light bulb?

The electrical foot contact in a light bulb serves as a connection point for the electrical current to flow into the bulb. It ensures that the electrical circuit is completed when the bulb is screwed into a socket, allowing the filament or LED components to illuminate. This contact is essential for the bulb's operation, enabling it to produce light when powered.

What can you do about eye floaters to improve your vision and overall eye health?

To improve vision and overall eye health related to eye floaters, it is recommended to maintain a healthy lifestyle, protect your eyes from harmful UV rays, and consult with an eye care professional for potential treatment options.

Where is the red light areas loketed in chennai?

In Chennai, red light areas are primarily found in neighborhoods like Ayanavaram, Pondy Bazaar, and parts of the city near commercial hubs. These areas are often discreet and not widely advertised due to legal and social implications. It's important to approach this topic with sensitivity, considering the legal and ethical complexities surrounding the sex trade.

Taking 2 or 3 seconds to look away to text talk or search on your cell phone while driving at 55 mph allows your vehicle to travel how far without your attention?

At 55 mph, a vehicle travels approximately 80 feet per second. Therefore, if you take 2 to 3 seconds to look away at your cell phone, your vehicle could cover a distance of around 160 to 240 feet without your attention, which is roughly the length of a football field. This significant distance underscores the dangers of distracted driving.

How does density affect floating and sinking objects?

D=m/v if an object is more dense than water it will sink. If it is less dense then it will float. The SI units for density are kilograms per cubic meter, giving water a density of 1 kg/m^3. If the density of a substance is less than 1, it will float in water.

How long does it take an object moving 30 meters per sec. to go a total of 165m?

distance = (rate) x (time), so time = (distance)/(rate).

If the rate = 30 m/s & distance = 165 m, then: t = 165 m / (30 m/s) = 5.5 seconds

What happen when light strikes a translucent material?

When light strikes a translucent material, some light passes through, but it is scattered in different directions. This scattering prevents clear images from forming on the other side. Examples include frosted glass or thin fabric, where light diffuses, creating a soft, glowing effect rather than a sharp, direct transmission.

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What is the relative impact of water vapor versus CO2 as a greenhouse gas in the Earth's atmosphere?

Water vapor is the most abundant greenhouse gas in the Earth's atmosphere and has a greater impact on the greenhouse effect compared to carbon dioxide (CO2). However, CO2 is considered a more potent and long-lasting greenhouse gas, contributing significantly to global warming and climate change.

What is the difference between mid index and high index lens?

Mid-index lenses are thinner and lighter than standard lenses, perfect for moderate prescriptions.

High-index lenses are even thinner and lighter, designed for stronger prescriptions.

If you're shopping for lenses, Eyeglasses Direct and Glasses direct are nice options.

Why does the sky normally appear blue?

The sky appears blue because of a phenomenon called Rayleigh scattering, where particles in the atmosphere scatter sunlight in all directions. Blue light has a shorter wavelength and scatters more easily than other colors, making the sky look blue to our eyes.

Why doesn't the moon fall to the earth?

The moon doesn't fall to the earth because of its orbit and the balance between its gravitational pull and its forward motion. The moon's speed and distance from the earth keep it in a stable orbit.

Why is friction so important to a moving vehicle?

Friction is important to a moving vehicle because it provides the necessary grip between the tires and the road surface, allowing the vehicle to accelerate, decelerate, and turn effectively. Without friction, the tires would slip and the vehicle would not be able to maintain control or traction, leading to accidents and unsafe driving conditions.