Which country produces the most green energy? China Is Norway run on renewable energy? In Norway, 98 percent of the electricity production come from renewable energy sources. Hydropower is the source of most of the production. Who owns Norway’s oil? The current company was formed by the 2007 merger of Statoil with the oil and […]
What do you say when evaluating a presentation?
What do you say when evaluating a presentation? Criteria for Evaluating Presentations Focus of the presentation. Clarity and coherence of the content. Thoroughness of the ideas presented and the analysis. Clarity of the presentation. Effective use of facts, statistics and details. Lack of grammatical and spelling errors. Design of the slides. Effective use of images. […]
What type of mixtures can be separated by centrifugation?
What type of mixtures can be separated by centrifugation? Ernest Z. Centrifugation separates the components of heterogeneous mixtures. These include liquids in liquids, solids in liquids, and solids and liquids in gases. Centrifugation uses centrifugal force to move dense components to the outside of the container. Which mixture can be separated by decanting and centrifuging? […]
Do you need a resistor with a 12 volt coil?
What can be designated as negative positive or neutral?
What can be designated as negative positive or neutral? That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have […]
Does friction decrease inertia?
Does friction decrease inertia? Overcoming Inertia Once an object starts moving, inertia keeps it moving without any additional force being applied. Friction opposes the motion of all moving objects, so—like the skateboard—all moving objects eventually stop moving even if no other forces oppose their motion. What is the importance of friction in our daily life? […]
What is the frequency of a pendulum vibration 40 times in 20 s?
How does the new moon affect us?
How does the new moon affect us? The Gravitational Pull It’s thought that at the New Moon and Full Moon, like the tides, our emotions are pulled to the surface and feelings are heightened. What the science says: some researchers theorize that humans are reacting to subtle changes in the Earth’s magnetic field that occur […]
What is the equation for angular size?
What is the equation for angular size? We can generate another simple formula: Angular size in degrees = (size * 57.29) / distance No doubt you can figure out the formulas for minutes and seconds of arc. What is the diameter of the moon? 3,474.2 km What is the angular diameter of the moon? about 31 […]
What does a light wave travel fastest through?
What does a light wave travel fastest through? Light waves travel much faster than sound waves. Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. Does […]