Is 30 percent of Earth Land? about 30 percent of earth’s land area RANK ANSWER About 30 percent of Earth’s land area ASIA About 70 percent of Earth’s surface What is 30 percent of Earth’s mass? The Earth’s core accounts for 15% of Earth’s volume but more than 30% of the mass, the mantle for […]
What are examples of thermal expansion in liquids?
What are examples of thermal expansion in liquids? Liquids ENGINE COOLANT. Another example of thermal expansion on the part of a liquid can be found inside the car’s radiator. WATER. THE GAS LAWS. VOLUME GAS THERMOMETERS. JAR LIDS AND POWER LINES. EXPANSION JOINTS. MERCURY IN THERMOMETERS. THE BIMETALLIC STRIP IN THERMOSTATS. What are the main […]
How much force is needed to pull a spring with a spring constant of 20 N Ma distance of 25cm Show your working?
What did the Curies conclude about radioactivity based on their studies?
What did the Curies conclude about radioactivity based on their studies? – the intensity of the radiation is proportional to the amount of uranium or thorium in the compound – no matter what compound it is; – the ability to emit radiation does not depend on the arrangement of the atoms in a molecule; it […]
What was the first electricity?
What was the first electricity? 1879 After many experiments, Thomas Edison invented an incandescent light bulb that could be used for about 40 hours without burning out. By 1880 his bulbs could be used for 1200 hours. 1879 Electric lights (Brush arc lamps) were first used for public street lighting, in Cleveland, Ohio. Who invented […]
Is gold an unreactive metal?
Is gold an unreactive metal? Gold has a heavy enough nucleus that its electrons must travel at speeds nearing the speed of light to prevent them from falling into the nucleus. This relativistic effect applies to those orbitals that have appreciable density at the nucleus, such as s and p orbitals. This is why gold […]
How do you use a dowsing chart?
How do you use a dowsing chart? How to Dowse Using Pendulum Charts Step 1: Begin by formulating a well thought out question. Step 3: Center yourself, connect with your guides, your high self your angels or whomever you generally consult when dowsing. Step 4: Ask if you are ready, willing, and able to dowse […]
Why does my microwave get wet inside?
Why does my microwave get wet inside? The moisture leaves the microwave/compact oven through ventilation ducts, including the door. Moisture is released when food is heated up in an oven, especially in the case of frozen items. 3. Moisture left in the cavity and behind the door glass is a normal part of the cooking […]
Is most important in determining how an atoms will bond?
Is most important in determining how an atoms will bond? The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons. Is C […]
What are the ways of learning?
What are the ways of learning? There are three main cognitive learning styles: visual, auditory, and kinesthetic. The common characteristics of each learning style listed below can help you understand how you learn and what methods of learning best fits you. What is the LCI test? To measure the degree to which you use your […]