Which mechanisms of heat transfer will work in a vacuum quizlet? a. Yes, heat transfer by conduction will occur through a vacuum. Which heat transfer process is increased by profuse sweating? Convective heat exchange increases with increasing air speed and increased differences between air and skin temperature. Evaporation of sweat from the skin cools the […]
What is the difference between actual and theoretical yield?
What is the difference between actual and theoretical yield? Remember, the theoretical yield is the amount of product produced when the entire limiting product is used up, but then actual yield is the amount of product that is actually produced in a chemical reaction. Why is my actual yield higher than theoretical yield? The percent […]
What are the disadvantages of Daylight Savings Time?
What are the disadvantages of Daylight Savings Time? 1. Changing the time, even if it is only by an hour, disrupts our body clocks and rhythm. According to officials, the lack of sleep at the start of DST has lead to car accidents, workplace injuries, suicide and miscarriages. The risk of suffering a heart attack […]
What is the difference between dynamics and kinematics?
What is the difference between dynamics and kinematics? Traditionally, motion studies have been divided into two categories: kinematics and dynamics. Kinematics is the study of motion without regard to forces that cause it; dynamics is the study of motions that result from forces. What are kinematic properties? To describe motion, kinematics studies the trajectories of […]
How are electric charges created?
How are electric charges created? A. Electrons can be removed from atoms and accumulated to produce a negative charge. Atoms from which electrons have been removed produce positive electric charge. … What is range of electric force? The electric force is operative between charges down to distances of at least 10-16 metre, or approximately one-tenth […]
How do plants return water back into the environment?
How do plants return water back into the environment? Plants soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called transpiration. The process of transpiration, like evaporation, returns water back into the atmosphere. What’s it called when plants lose water […]
Why do cheaters get angry when caught?
Why do cheaters get angry when caught? Getting caught cheating is a shameful act. Cheaters become furious when caught because of the number of people they’ve hurt in the process. Cheaters become furious when caught because of the number of people they’ve hurt in the process. Is it OK to forgive someone who hurt you? […]
Does lowering a car increase drag?
Does lowering a car increase drag? Lowered vehicles are more aerodynamic. There’s less air hitting the wheels and tires (that are not streamlined shapes). This makes these cars faster. BUT, lowering a car too much will actually increase wind drag. Why is it important to reduce vehicles drag? Automotive manufacturers are placing a growing emphasis […]
What is the relationship between osmosis and diffusion?
What is the relationship between osmosis and diffusion? Osmosis only allows solvent molecules to move freely, but diffusion allows both solvent and solute molecules to move freely. 4. Osmosis happens when molecules move from higher to lower concentrations, but diffusion happens when it is reversed. Is osmosis active or passive? Osmosis is a passive transport […]
What type of microscope do doctors use?
What type of microscope do doctors use? Electron microscopes use concentrated beams of electrons and dyes to illuminate their specimens. These electron beams have very short wavelengths, which means they are able to produce exceptionally high-resolution images. Clinics can utilize these scopes to identify and examine viruses within the bloodstream. How can a microscope be […]