Is it dangerous to connect two extension cords?

Is it dangerous to connect two extension cords? If you plug two identical cords into each other, that reduces their current capacity in half and can possibly result in voltage drop and overheating. In general, extension cords should not exceed 100 feet in length. However, by plugging one extension cord into another, the maximum cord […]

Why do we need to study dynamics?

Why do we need to study dynamics? As a field of study it is very important for analyzing systems consisting of single bodies or multiple bodies interacting with each other. A dynamics analysis is what allows one to predict the motion of an object or objects, under the influence of different forces, such as gravity […]

What is the hardest metal to drill through?

What is the hardest metal to drill through? Cobalt (HSCO) is considered an upgrade from HSS because it includes 5-8% Cobalt blended into the base material. This is a great option for drilling into harder steel as well as stainless steel grades. Carbide (Carb) is the hardest and most brittle of the drill bit materials. […]

Can I charge a 19V laptop with a 12V charger?

Can I charge a 19V laptop with a 12V charger? NO you cannot charge your 12V AGM battery directly with a 19V Laptop power supply. So your fully charged state is about 13.8 – 14.5V. Putting two batteries in parallel does not change the voltage required to charge them it simply increases the current capability […]

What is protraction and retraction of shoulder?

What is protraction and retraction of shoulder? Protraction of the scapula occurs when the shoulder is moved forward, as when pushing against something or throwing a ball. Retraction is the opposite motion, with the scapula being pulled posteriorly and medially, toward the vertebral column. What causes protracted scapula? Scapular dyskinesis in impingement is characterized by […]

What is gravitational equilibrium?

What is gravitational equilibrium? Hydrostatic equilibrium, also known as gravitational equilibrium, describes a balance between gravity and pressure. Gravity works to contract while pressure works to expand. Hydrostatic equilibrium is the state where the force of gravity pulling inward is balanced by pressure pushing outward. What is heating the corona? The coronal heating problem in […]

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