Are work and impulse the same? Impulse is a vector, so a negative impulse means the net force is in the negative direction. Likewise, a positive impulse means the net force is in the positive direction….Common mistakes and misconceptions. Impulse Work Changes an object’s momentum energy Quantity type vector scalar What does kW mean in […]
What is another name for a reactant biology?
What is another name for a reactant biology? Also called interactant. Chemistry. any substance that undergoes a chemical change in a given reaction. What are end products in biology? End product. (Science: biochemistry) The final product of after a series of reactions with enzymes in a biochemical metabolic Pathway has taken place. What are the […]
What are the 3 types of models?
What are the 3 types of models? Contemporary scientific practice employs at least three major categories of models: concrete models, mathematical models, and computational models. What is the ideal model body? Runway models must have precise measurements so they’re able to fit the clothes that designers are going to be showing to their clients. Their […]
Is the sun hotter than lightning?
Is the sun hotter than lightning? Lightning is four times hotter than the sun. The surface of the sun is around 11,000 degrees F. Scientists determined that temperature more than 20 years ago by examining the light given off by a bolt of lightning. How common is ball lightning? 1AD25), ball lightning has been seen […]
How far is the core from the crust?
How far is the core from the crust? The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. The core is found about 2,900 kilometers (1,802 miles) below Earth’s surface, and has a radius of about 3,485 kilometers (2,165 miles). Do you need planning permission to dig out a basement? Excavating to […]
What is the vertical component of the velocity just before the ball hits the ground?
What is the vertical component of the velocity just before the ball hits the ground? When a projectile reaches maximum height, the vertical component of its velocity is momentarily zero (vy = 0 m/s). Is horizontal velocity constant? The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical […]
How much does a 1 kW solar system cost?
How much does a 1 kW solar system cost? Residential solar energy costs $0.08 to $0.10 per kWh on average, and commercial or utility-scale solar power costs $0.06 to $0.08 per kilowatt-hour. Prices include the Federal Solar Tax Credit (ITC) and vary drastically based on the amount of sunlight and type of solar panels installed. […]
Will AC work if thermostat is bad?
Will AC work if thermostat is bad? Under most circumstances, a bad thermostat will not have any effect whatsoever on the air conditioning system. The AC system is a completely separate entity; the only connection it has to the engine is at the compressor pulley, which derives its power from the crankshaft. How do I […]
Is liquid cooling better than fans?
Is liquid cooling better than fans? According to Mark Gallina, liquid cooling more “efficiently distributes heat over more convection surface area (radiator) than pure conduction, allowing for reduced fan speeds (better acoustics) or higher total power.” In other words, it’s more efficient, and often quieter. Is liquid cooling hard to maintain? Liquid cooled systems require […]
Can Arccos be negative?
Can Arccos be negative? The arccosine of a negative number is a second quadrant angle, cos-1(-) is in quadrant II. The arctangent of a positive number is a first quadrant angle, tan-1(+) is in quadrant I. Is SEC the same as Arccos? Note, sec x is not the same as cos-1x (sometimes written as arccos […]