Are electric heaters 100 percent efficient? Pretty much all the electrical energy does get converted to heat, as you suggest. The energy used to get a certain amount of heat into the house is simply equal to that amount of heat. In that sense, the electric heater is 100% efficient, since energy not directly turned […]
What does the Mayflower Compact say about equality?
What does the Mayflower Compact say about equality? The rest of the Mayflower Compact is very short. It simply bound the signers into a “Civil Body Politic” for the purpose of passing “just and equal Laws . . . for the general good of the Colony.” But those few words expressed the idea of self-government […]
What has no definite shape or size?
What has no definite shape or size? A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape. Why can’t solid things change their shape? Solids can hold their shape because their molecules are tightly packed together. In the […]
Does high barometric pressure cause sinus problems?
Does high barometric pressure cause sinus problems? Shifts in barometric pressure can also trigger pain and discomfort for those with sinusitis. This can result in sudden, painful feeling of pressure, sinus headaches, and facial pain, along with congestion. When such symptoms linger, the sinuses can become inflamed and blocked, which can lead to infection. Does […]
What are the two types of divergent boundaries?
What are the two types of divergent boundaries? There are two types of divergent boundaries, categorized by where they occur: continental rift zones and mid-ocean ridges. What happens at a divergent boundary? A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) […]
Is Neowise still visible 2021?
Is Neowise still visible 2021? This comet will be initially visible from the Northern Hemisphere, and will become visible from the Southern Hemisphere in December 2021 and January 2022. What comet will hit Earth? Apophis How fast do asteroids travel? Asteroids, the most common type of impactor, slam into the Earth at an average velocity […]
What is the major source of photochemical smog?
What is the major source of photochemical smog? Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. What is the major source of photochemical smog quizlet? Photochemical smog is caused by […]
Which animal tongue is strongest?
Which animal tongue is strongest? Chameleons What is the first most dangerous tongue? Giant Anteater Without teeth, the giant anteater’s tongue does double duty—it’s spiny, which helps it grab insect prey, and its sticky saliva traps its victims against the roof of the mouth, where they’re crushed before being swallowed, according to the University of […]
What is the most plentiful metal on earth?
What is the most plentiful metal on earth? Iron What percent of Earth is metal? Lutgens and Edward J. Tarbuck, Earth’s crust is made up of several elements: oxygen, 46.6 percent by weight; silicon, 27.7 percent; aluminum, 8.1 percent; iron, 5 percent; calcium, 3.6 percent; sodium, 2.8 percent, potassium, 2.6 percent, and magnesium, 2.1 percent. […]
At what position does the ball have the most potential energy?
At what position does the ball have the most potential energy? The ball at the top of the swing is briefly motionless. It has the greatest potential energy, because it is highest above the surface. At every point in the swing, the system of the ball on the pendulum string has the same total amount […]