What are two factors that affect friction?

What are two factors that affect friction? The friction force depends on two factors: a) The materials that are in contact. The two materials and the nature of their surfaces. b) The force pushing the two surfaces together. Pushing the surfaces together causes the more of the asperities to come together and increases the surface […]

Is lemon juice a strong acid?

Is lemon juice a strong acid? Lemon juice contains high levels of citric acid, with around . Citric acid is a weak acid, with a pKa of 2.79. The exact level of citric acid in lemon juice can fluctuate; but in general, lemon juice is highly acidic, with a pH of 2, because of the […]

Is stretching everyday bad for you?

Is stretching everyday bad for you? Don’t overdo it. Like other forms of exercise, stretching puts stress on your body. If you’re stretching the same muscle groups multiple times a day, you risk over-stretching and causing damage. Don’t go into your stretches cold. Do and don’ts stretching? Do’s and Don’ts with Stretching Do use static […]

Why can a machine not be 100% efficient?

Why can a machine not be 100% efficient? A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine. What do you have if work input […]

Can low pressure cause headaches?

Can low pressure cause headaches? When a person has low blood pressure (hypotension), they may experience a headache and a range of other symptoms, including nausea and lightheadedness. Sometimes, these symptoms require medical attention. Keep reading to learn more about low blood pressure headaches, including the causes and how to treat them. What do low […]

What is the strongest acid in the human body?

What is the strongest acid in the human body? The honor of the strongest acid goes to fluoroantimonic acid, which is 100,000 billion billion billion times more acid than gastric acid (pH of -31.3.). This substance is so strong it will eat through skin, bones, and pretty much any container used to store it. What […]

What should I ask a patient about social history?

What should I ask a patient about social history? Environmental / Social Questions What other health care professionals are currently helping care for you? What are your average daily activities? Any children? Ethnic background? Finances; home situation (location, suitability, help available, transportation) What do you do for a living? Any inherited diseases? Why is social […]

What is area in math 3rd grade?

What is area in math 3rd grade? In geometry, the area can be defined as the space occupied by a flat shape or the surface of an object. The area of a figure is the number of unit squares that cover the surface of a closed figure. Area is measured in square units such as […]

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