Category: Physics

What is the relationship between energy and electricity? With power and energy, power is units of energy divided by time. The same difference as distance and velocity. The units of power are watts, the units of energy are joules. A watt is one joule divided by one second. How do I know if my smart […]

Why the efficiency has no unit? We express efficiency as a percentage. In other words, it has no units (Percent is NOT a unit.). If you look at the efficiency equation at the right, you can see why efficiency has no units. Notice that the SI unit for work out is Joules, which is the […]

What are the 4 types of essays? An essay is a focused piece of writing designed to inform or persuade. There are many different types of essay, but they are often defined in four categories: argumentative, expository, narrative, and descriptive essays. How do you write a formal academic essay? Steps for Writing a Formal Essay […]

Can I sleep after I hit my head? A person can go to sleep following a concussion if he or she is awake and able to hold a conversation. No other symptoms, such as dilated pupils or trouble walking, should be present before sleeping. What should you do if you hit your head really bad? […]

Are Roma tomatoes easy to grow? All tomatoes need plenty of water, soil rich in organic material and need to be staked up off the ground for the best fruit production. Roma tomatoes are no different. Romas do tend to be a little easier to grow than other tomatoes due to the fact than many […]

What characteristics of our solar system support the existence of life? We believe that liquid water and carbon are required for life to arise and thrive, as well as a source of energy. Many places in the solar system provide these, at least for a time; not only planets, but also some moons and even […]

How do you fix heat stroke? In most cases, you can treat heat exhaustion yourself by doing the following: Rest in a cool place. Getting into an air-conditioned building is best, but at the very least, find a shady spot or sit in front of a fan. Drink cool fluids. Stick to water or sports […]

What fuel did the first cars use? Beginning in the 1880s, inventors tried very hard to make cars that would run well enough to use every day. These experimental cars ran on steam, gasoline, or electricity. Do all cars have internal combustion engine? Gasoline and diesel vehicles are similar. They both use internal combustion engines. […]

How much is 1000 pounds of force? A kip is a US customary unit of force. It equals 1000 pounds-force, and is used primarily by civil engineers to indicate engineering loads where the pound-force is too small. How much air force can lift a human? Yes, lift is nothing but the force in the upward […]

How do you find the atomic number and period of a group? Come down to the next period ,i.e period 3. We need to reach four blocks to the right to get to group 4. Going each block to the right will increase the atomic number by 1. Therefore, going 4 blocks to the right […]