What is negative control vs positive control? A negative control is a control group in an experiment that uses a treatment that isn’t expected to produce results. A positive control is a control group in an experiment that uses a treatment that is known to produce results. Who has the best drinking water in the […]
What happens when water cools below 4?
What happens when water cools below 4? Right when the water freezes to ice, the ice becomes significantly less dense than the water and continues to float on the lake’s surface. Below 4° Celsius, water becomes less dense as it gets colder, causing water about to freeze to float to the top. What happens when […]
How do you solve accuracy and precision?
How do you solve accuracy and precision? Find the difference (subtract) between the accepted value and the experimental value, then divide by the accepted value. To determine if a value is precise find the average of your data, then subtract each measurement from it. This gives you a table of deviations. Then average the deviations. […]
Will a Jump Starter start a dead battery?
Will a Jump Starter start a dead battery? A car jump starter with 500 cold-cranking amps should be able to start just about any vehicle with a dead battery. What happens if you try to jump a car wrong? When the jumper cables are incorrectly connected, the polarity of the electrical system on the vehicle […]
What is the greatest distraction when driving?
What is the greatest distraction when driving? Talking and texting. People who use their cell phones to talk or text while driving are by far the most common reason for distracted driving accidents. In fact, the National Safety Council estimates that 26% of all car crashes involve cell phones. What are 5 10 things that […]
How many people die on roller coasters annually?
How many people die on roller coasters annually? four deaths Are roller coasters bad for you? Findings from a 2009 study suggest that head motions during roller coaster rides typically confer a very low risk for traumatic brain injury (TBI), and a 2017 study found that brain strain rates during roller coaster rides were similar […]
What is the pH of NaCl?
How many amps are in 220 volts?
What is the attraction between particles in a solid?
What is the attraction between particles in a solid? Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. Their vibration is related to their kinetic energy. In the solid the particles vibrate in place. Are solid particles in motion? Particles […]
Do divers breathe oxygen?
Do divers breathe oxygen? Contrary to popular belief, scuba divers don’t only breathe oxygen underwater. After all, we don’t breathe pure oxygen above water either. Divers go way deeper and explore much longer with mixtures such as nitrox, heliox, and hydrox as these are safer alternatives to simple compressed air. Can oxygen get you high? […]