Category: Physics

Is antique brass strong? Antique brass differs in its appearance because of the varying ratios of copper to zinc. However, most antique brass is stronger than copper because of the inclusion of zinc, so they make durable, functional domestic items. Most true antique brass is as old as the mid-eighteenth century. How can you tell […]

How much does a 3 story elevator cost? At the higher price range for the project, you could pay around $60,000 for a custom cable type of elevator installed….Residential Elevator Cost by Number of Floors. Number of Floors Average Project Cost (for a Pneumatic Elevator) 3-Story Home $48,000 – $62,000 Which type of elevator is […]

Which of the following is a quality of pseudoscience? Pseudoscience is often characterized by contradictory, exaggerated or unfalsifiable claims; reliance on confirmation bias rather than rigorous attempts at refutation; lack of openness to evaluation by other experts; absence of systematic practices when developing hypotheses; and continued adherence long after the … Why is scientific knowledge […]

Can a lemon be used as a battery? A lemon battery is a simple battery often made for the purpose of education. Typically, a piece of zinc metal (such as a galvanized nail) and a piece of copper (such as a penny) are inserted into a lemon and connected by wires. How do you test […]

How does fish move for Class 6? Fishes swims by moving its body and tail in opposite direction to each other, they stretch the body and relaxing the tail in opposite direction this forms a curve, then quickly the body moves other side and the tail on the opposite this creates the jerk and pushes […]

How many years does it take to be an archaeologist? The minimum amount of education needed to work in the field of archaeology is a 4-year college degree (BA or BS). Usually archaeologists major in anthropology or archaeology. They also receive training in archaeological field and laboratory techniques. Is it hard to get a job […]

What do you call the materials that allow electricity to flow easily? The flow of electricity is called current. Metals are generally very good conductors, meaning they let current flow easily. Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators. Does rubber […]

Why did the population explode in 1750? 1: After 1750 more people got married younger, therefore the population increased because couples had more time together to have children. This was important because couples couldn’t usually afford children back in 1750, but when the children got a bit older they earn money for their parents. What […]

Is it cheaper to run dishwasher or wash by hand? This report estimates that an average dishwasher runs 215 loads per year, so you’d have a cost of about $0.46 per load for the cost of the dishwasher. Thus, your total extra cost per dishwasher load of dishes versus doing them by hand is about […]

Does a hydraulic press multiply force? Any externally applied pressure is transmitted to all parts of the enclosed fluid, making possible a large multiplication of force (hydraulic press principle). How do you calculate the force of a hydraulic system? The basic equation to use is F (Force) = P (Pressure) x A (Surface Area). You […]