How do you check your safe following distance? Basically all you do is count the seconds between when the car ahead of you passes something stationary (a road sign, a tree, the guy selling watermelons on the side of the road) and when you pass it. You want to try and hit that second following […]
How many paper clips can an electromagnet pick up with 20 coils?
What are the physical and chemical properties of crude oil?
What are the physical and chemical properties of crude oil? The behavior of a crude oil or diluted bitumen released into the environment is shaped not only by its chemical composition but also by its physical properties. Those of particular interest are density, viscosity, flash point, and adhesion. What are the physical properties of crude […]
What if Earth had no tilt?
What planet can sustain life?
Can K-type stars support life?
What is the age limit for Flvs?
Is kcal same as Cal?
Is kcal same as Cal? The calorie content is often given in kcals, which is short for kilocalories, and also in kJ, which is short for kilojoules. A kilocalorie is another word for what’s commonly called a calorie, so 1,000 calories will be written as 1,000kcals. What is difference between Cal and KCAL? What is […]
Is the water displacement method accurate?
Is the water displacement method accurate? The change in water level equals the volume of the submerged object. This method is more accurate than measuring water that has spilled out an overflowing beaker. You may need to remind students of the need for accuracy, not only in the weighing of the objects, but also in […]