Category: Physics

Who leads the world in geothermal energy? the US Who is the father of geothermal energy? Arturo Pineda Alcaraz Who was the first person to use geothermal energy? Archaeological evidence shows that the first human use of geothermal resources in North America occurred more than 10,000 years ago with the settlement of Paleo-Indians at hot […]

Why is a propane torch lit inside a hot air balloon? Propane torch is lit inside a hot air balloon during pre-flight preparation because the heat from the touch is needed to heat the cold air inside the balloon, so that the air will expand and become less dense and rise, thus providing a lift […]

Is inverted how you really look? You normally see yourself as a reflection such as in a mirror. This image is actually the reversed or “mirrored” image, not the photo. On the other persons phone seeing the image of you, they see the non-mirrored image which looks normal to them but weird to you. Is […]

How fast is 7 horsepower? How much is 212cc in mph? This engine is a performer right out of the box, and should get your go kart running anywhere from 20 mph all the way up to 35mph in its stock form. How fast can a 1 hp engine go? A 1-horsepower engine couldn’t maintain […]

What is causality theory? Causality is a genetic connection of phenomena through which one thing (the cause) under certain conditions gives rise to, causes something else (the effect). The essence of causality is the generation and determination of one phenomenon by another. A cause is an active and primary thing in relation to the effect. […]

What is the greatest degree of precision? pipette How precise is a cm ruler? We can say that the measuring instrument is readable to ±0.05 cm. The ±0.05 cm means that your measurement may be off by as much as 0.05 cm above or below its true value. This value is called the uncertainty or […]

What measurement represents volume? Volume is the measure of the amount of space occupied by an object. The standard SI unit of volume is defined by the base unit of length (Figure 3). The standard volume is a cubic meter (m3), a cube with an edge length of exactly one meter. Which choice best describes […]

What would happen if a bowling ball collided with a standing pin? When the bowling ball collides with the pins, the momentum the ball loses is equal to the momentum the pins gain. An object’s inertia resists changes its motion. The momentum and force of a rolling ball is greater than that of the pins. […]

What does molar heat capacity depend on? Like the heat capacity of an object, the molar heat capacity of a substance may vary, sometimes substantially, depending on the starting temperature T of the sample and the pressure P applied to it. What is the unit of molar heat capacity? The molar heat capacity is the […]

What will be the resistance of 100w 210v lump? Resistance of the bulb: 625 Ω is the resistance of a bulb rated 100w ,250v. What is the resistance of the bulb marked as 20w 220v? Answer. putting values we get R= 242 ohm. What is the resistance of a bulb at 500w 220V? R=(220V)2100W=484Ω. What […]