Is impulse positive or negative? Impulse is a vector, so a negative impulse means the net force is in the negative direction. Likewise, a positive impulse means the net force is in the positive direction….Common mistakes and misconceptions. Impulse Work Changes an object’s momentum energy Quantity type vector scalar What is the impulse from 0 […]
What are the 5 fundamental forces of nature?
What are the 5 fundamental forces of nature? They are in no particular order gravity, electromagnetism, the weak nuclear force and the strong nuclear force. What is the first law of nature? 1. proverb All living things prioritize their own survival above all else and will do what is necessary to stay alive. Self-preservation is […]
What is the main idea of the activation-synthesis theory?
What is the main idea of the activation-synthesis theory? The main idea behind activation-synthesis theory is that dreams are just the brain’s efforts to make sense out of meaningless patterns of firing in the brain as we sleep. Certain circuits in the brain become activated during REM sleep. How does the activation-synthesis hypothesis explain dreaming […]
Why an atom has no overall charge?
Why an atom has no overall charge? Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral. What is an atom that has a positive charge called? An atom that has a positive or […]
What are the three types of self talk?
What are the three types of self talk? Many people don’t know this, but there are actually three types of self talk: Positive, Negative, and Instructional. Is Self talk a disorder? 01/6Talking to yourself is not a mental illness, say experts Good news for all those who blabber to themselves and have been often told […]
What was the first source of oxygen?
What was the first source of oxygen? blue-green algae Why do cells need nitrogen? Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in […]
Why is my car losing power when I accelerate?
Why is my car losing power when I accelerate? There are many reasons why your vehicle may be losing power, especially when accelerating. Some of these common causes are: Mechanical problems such as: Low compression, clogged fuel filter, dirty air filter, clogged Exhaust Manifold. Malfunction of actuators such as: Bad injectors, bad fuel pump, bad […]
What is the slope of a 45 degree line?
What is an example of law of acceleration?
What is an example of law of acceleration? Newton’s Second Law of Motion says that acceleration (gaining speed) happens when a force acts on a mass (object). Riding your bicycle is a good example of this law of motion at work. Your bicycle is the mass. Your leg muscles pushing pushing on the pedals of […]
Is Power is a vector quantity?
Is Power is a vector quantity? Vector of scalar? As power doesn’t have any direction, it is a scalar quantity. Also, power is the ratio of two scalar quantities. Is scalar quantity can be negative? Scalar quantity can never be Negative. Because scalar got only magnitude not direction. And magnitude cant be negative. Is scalar […]