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Bicycles

A bicycle is a two-wheeled, man-powered vehicle. Any questions about purchasing, riding, or maintaining a bicycle can be asked here.

500 Questions

Can a bicycle user avoid a traffic jam?

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Yes, a bicycle user can often avoid a traffic jam by taking alternate routes such as bike lanes, off-road paths, or side streets that are not congested with cars. Bicycles can also maneuver through traffic more easily than cars, allowing riders to move around obstacles and continue on their way.

How many people in the world ride bikes?

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It is estimated that over a billion people around the world ride bikes regularly for transportation, exercise, or leisure. Cycling is a popular mode of transportation in many countries due to its health and environmental benefits.

How much can a bicycle's velocity reach?

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The maximum velocity a bicycle can reach will depend on various factors such as the rider's strength, the gearing of the bike, and external conditions like wind resistance. Under normal circumstances, a well-tuned road bike with a skilled rider can reach speeds of 25-30 miles per hour on flat terrain. Professional cyclists in a race setting can reach even higher speeds, sometimes exceeding 40-50 miles per hour during sprints.

What metal is used in the manufacture of bicycle handlebars?

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Aluminum alloy is a common material used in the manufacture of bicycle handlebars. It is preferred for its lightweight, durable, and corrosion-resistant properties, making it ideal for cycling applications. Some expensive handlebars may also be made from carbon fiber for added strength and weight savings.

What polymers are used in bike tires?

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Bike tires are commonly made from a blend of natural rubber and synthetic polymers such as styrene-butadiene rubber (SBR) and polybutadiene rubber. These polymers provide the desired balance of durability, flexibility, and grip for the tire to perform well under different road conditions.

How big is the sub66 grenade 900 lumen bike light?

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The sub66 grenade 900 lumen bike light is a compact and lightweight device, typically measuring around 2-3 inches in length and diameter. It is designed to be easily mounted onto a bike's handlebars without adding a lot of bulk or weight.

Which is a fastest wheelset road bike?

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There are many fast wheelsets for road bikes, but commonly recognized fast options include Zipp 404, ENVE SES 5.6, and Lightweight Meilenstein. Each of these wheelsets is known for their aerodynamic design and lightweight construction, which helps to increase speed and performance on the road.

What element makes up up a bicycle tire?

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A bicycle tire usually consists of rubber, which is dynamically reinforced with materials such as fabric, fiber, or metal to provide strength, flexibility, and durability. These materials, combined with air pressure, enable the tire to support the weight of the bicycle and rider while providing traction and cushioning.

In an isolated system bicycle 1 and 2 each with the mass of 30 kg collide bike 1 was moving to the right at 2 ms while bike 2 was moving to the left at 4 ms what is the magnitude of their momentum?

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The momentum of an object is given by the product of its mass and velocity. The momentum of bike 1 is 30 kg x 2 m/s = 60 kg.m/s to the right, and the momentum of bike 2 is 30 kg x 4 m/s = 120 kg.m/s to the left. When bike 1 and bike 2 collide in an isolated system, the total momentum is conserved. The magnitude of their total momentum is 60 kg.m/s + 120 kg.m/s = 180 kg.m/s.

What are the constraints for a titanium bicycle?

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The constraints for a titanium bicycle include cost, as titanium is more expensive than steel or aluminum; availability of skilled welders and manufacturers due to the specialized techniques required for working with titanium; and difficulty in repairing or modifying titanium frames compared to other materials like steel or aluminum.

What Suppose a bicycle was coasting on a level surface and there was no friction. What would happen to the bicycle's speed?

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If there is no friction, the bicycle's speed will remain constant due to inertia. Once set in motion, it will continue at the same speed unless acted upon by an external force.

What is the name of the bike used in the movie Aquamarine?

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The bike used in the movie "Aquamarine" is a red Vespa scooter.

What is a chemical change for a bicycle frame?

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A chemical change for a bicycle frame would involve a reaction that changes the composition of the material making up the frame. For example, if the frame undergoes rusting due to exposure to oxygen and moisture, this would be a chemical change as the iron in the frame reacts with oxygen to form iron oxide.

How do you prevent rusting on bicycle handlebars?

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To prevent rusting on bicycle handlebars, it is important to keep them clean and dry after each ride. Regularly wipe them down with a clean cloth to remove any moisture or dirt that could cause rust. You can also apply a protective coating or wax specifically designed for metal surfaces to help prevent rust formation.

What do p1 and p2 stand for?

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P1 and P2 generally stand for "Player 1" and "Player 2," often used in the context of gaming to refer to different individuals or sides competing in a game or match.

What is the momentum of a 37kg person riding south on an 18kg bicycle at 1.2 meters per sec?

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The momentum of the person can be calculated as mass of person x velocity of person = 37 kg x 1.2 m/s = 44.4 kg m/s. The momentum of the bicycle can be calculated as mass of bicycle x velocity of bicycle = 18 kg x 1.2 m/s = 21.6 kg m/s. The total momentum of the person and bicycle together is the sum of their individual momenta, so 44.4 kg m/s + 21.6 kg m/s = 66 kg m/s.

How is the frame of a bicycle protected from rust?

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The frame of a bicycle can be protected from rust by applying a corrosion-resistant coating such as paint or powder coating. Regularly cleaning and drying the frame after riding in wet conditions can also help prevent rust. Additionally, storing the bicycle in a dry place when not in use can further protect it from rust.

What does clothespin symbolize?

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A clothespin can symbolize simplicity, resourcefulness, and practicality. It may also represent holding things together or securing something in place.

How does regular exercise affect your nervous system?

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Regular exercise can improve the function of your nervous system by promoting the release of endorphins, which are chemicals that help reduce feelings of pain and stress while enhancing mood. Exercise also increases blood flow to the brain, which can help improve cognitive function and overall mental well-being. Additionally, physical activity can also help regulate neurotransmitters like serotonin and dopamine, which play a key role in regulating mood and emotions.

What are alloy brakes?

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Alloy brakes refer to bicycle brakes that are made from aluminum alloys, which offer a good balance of strength, durability, and lightweight characteristics. These type of brakes are commonly found on entry to mid-range bicycles.

Why don't we make all bicycles from plastics?

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Plastics are not as durable or efficient in terms of strength-to-weight ratio as metals commonly used in bicycle manufacturing like steel or aluminum. Plastic bicycles would likely be heavier, more prone to damage, and less reliable for long-term use. Additionally, the environmental impact of producing and disposing of plastic bikes could be greater compared to traditional materials.

What is the lightest bike frame metal?

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Titanium is the lightest bike frame metal, offering high strength-to-weight ratio and corrosion resistance. It is also known for its durability and ability to absorb shock, making it a popular choice for high-performance and long-lasting bike frames.

Why a person riding a bicycle fly forward off when hitting a rock explain on the basis of newton's first law?

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When a person riding a bicycle hits a rock, the rock exerts an external force on the person-bicycle system. According to Newton's first law, an object in motion will remain in motion unless acted upon by an external force. Therefore, when the bicycle hits the rock, the external force from the rock causes the person-bicycle system to abruptly stop, while the person's inertia keeps them moving forward and off the bicycle.

How many links does a nine speed mtb chain have?

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A nine-speed MTB chain typically has 116 links. This length is standardized to ensure compatibility with nine-speed drivetrains. It's important to use the correct length chain for optimal performance and shifting.

Which five spoke alloy wheels will fit on a bedford cf van1985 cheers kev?

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Some 5-spoke alloy wheels that may fit your Bedford CF van from 1985 are those with a bolt pattern of 5x160mm and a suitable offset to avoid rubbing on the body or suspension components. It's recommended to ensure the wheels are compatible with your van's hub size and weight requirements before purchasing. Additionally, consider the overall tire size to maintain proper clearance and performance.