Category: Physics

Does gravitational force increase weight? That is, the weight of an object is determined by the pull of gravity on it. Thus, an object’s physical weight may change from place to place: if a body weighs 54 kg on Earth, its weight will be just over 9 kg on the Moon, since the Earth’s gravitational […]

How many grams of protein do I need a day to lose weight? How much protein per day to lose weight? If you want to lose weight, aim for a daily protein intake between 1.6 and 2.2 grams of protein per kilogram (. 73 and 1 grams per pound). Athletes and heavy exercisers should consume […]

How much does a jet engine cost? And then there are so many different types of engines, which each have their own thrust rating. Roughly speaking, an engine can cost anything from 12 to 35 million dollars. How does a pilot start a plane? You don’t start a plane like a car, simply because an […]

What food does in our body? When nutrient intake does not regularly meet the nutrient needs dictated by the cell activity, the metabolic processes slow down or even stop.” In other words, nutrients give our bodies instructions about how to function. In this sense, food can be seen as a source of “information” for the […]

Can toothpaste really fix a cracked phone screen? Apparently, the theory is that the toothpaste being slightly abrasive will buff out some of the scratches and fill in any large cracks. The Team at We Solve All have been repairing phones for a very long time. However, we’ve never considered using toothpaste in any of […]

What is the volume of oxygen occupied by 2 moles? 1mol O2 occupies 22.4L of volume at STP. Does mole change with volume? First question: If there is no net flow of solute into or out of the volume during change in volume of the solvent, the number of moles of solute remains the same. […]

Is making jewelry out of coins illegal? The answer is no: it is not illegal to make jewelry out of coins. It only becomes illegal if a person is attempting to fraudulently alter the coin. Consider the penny smashing machine at national parks and many other government and public attractions. U.S. Code is 18 U.S.C. […]

What bring a change in the size and shape of an object? An external force may cause a change in the state of motion, size and shape of an object. The force may cause a change in the internal arrangement of molecules making up the object and depending upon the magnitude of the force, the […]

Did Elizabeth 1 go to war? Queen Elizabeth I reigned for 44 years and 127 days. In her reign she faced three main wars. They were: The Desmond Rebellion, the English War against Spain and the Tyrone Rebellion. The English war against Spain lasted from 1585 – 1603 (18 years). What does Elizabeth mean when […]

What are the two things responsible for the change of seasons? The change in seasons is caused by the rotational tilt of the earth on its axis when it revolves around the sun. The earth has a tilt of 23.50 on its elliptical plane and when the tilt moves towards or away from the sun, […]