How do you compare two sample variances? F Test to Compare Two Variances If the variances are equal, the ratio of the variances will equal 1. For example, if you had two data sets with a sample 1 (variance of 10) and a sample 2 (variance of 10), the ratio would be 10/10 = 1. […]
How do you explain diffusion?
How do you explain diffusion? What is diffusion? Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move […]
What are the 5 wave properties of light?
What are the 5 wave properties of light? You will investigate the wave properties of light: reflection, refraction, diffraction and interference. The light source is a helium-neon laser. Why Study Light? Physics is described as the study of matter and radiation. Is wave a property of light? Light has the properties of waves. Like ocean […]
What is the mass on moon?
Is magnetic field inside a toroid zero?
Is magnetic field inside a toroid zero? The magnetic field lines inside the toroid are concentric circles. The magnetic field is homogeneous inside the toroid and zero outside the toroid. We asses the direction of the magnetic B-field by the right-hand rule. Why is there no magnetic field outside a toroid? After applying Ampere’s Law, […]
What happens to the speed of a body when a force is applied?
What are the derived units of density?
What are the derived units of density? Thus density is an intensive quantity. The SI derived unit for density is the kilogram per cubic meter (kg/m3). This unit is awkwardly large for most chemical applications. The unit g/cm3 and its equivalent, g/mL, are more commonly used for solid and liquid densities. Which one is derived […]
What is a reflection in anatomy?
What is a reflection in anatomy? 1. a turning or bending back. 2. the folds produced when a membrane passes over the surface of an organ and then passes back to the body wall that it lines. Where is reflection used? A microscope uses a mirror to reflect light to the specimen under the microscope. […]
How can u tell if ur dehydrated?
How can u tell if ur dehydrated? Symptoms of dehydration in adults and children include: feeling thirsty. dark yellow and strong-smelling pee. feeling dizzy or lightheaded. feeling tired. a dry mouth, lips and eyes. peeing little, and fewer than 4 times a day. What does severe dehydration feel like? Medical research shows that dehydration can […]
Is soreness a good sign?
Is soreness a good sign? All people are at risk for muscle soreness, even body builders and other professional athletes. The good news is that normal muscle soreness is a sign that you’re getting stronger, and is nothing to be alarmed about. During exercise, you stress your muscles and the fibers begin to break down. […]