What is ideal effort force? In ideal machines, where there is no friction and the input work and output work are the same, (Effort Force)(Effort Distance)=(Resistance Force)(Resistance Distance. The effort is the work that you do. It is the amount of force you use times the distance over which you use it. What is the […]
Is NH a polyatomic ion?
Is NH a polyatomic ion? A polyatomic ion is an ion composed of more than one atom. The ammonium ion consists of one nitrogen atom and four hydrogen atoms. 1: (top) The ammonium ion (NH+4) is a nitrogen atom (blue) bonded to four hydrogen atoms (white). (middle) The hydroxide ion (OH−) is an oxygen atom […]
Where does vasoconstriction occur during exercise?
Where does vasoconstriction occur during exercise? When a person takes part in exercise their face can become pink due to vasodilation of the blood vessels close to the skin’s surface. In the cold, blood vessels at the skin’s surface close. This process is called vasoconstriction and takes blood away from the surface of the skin […]
What happens if concave mirror are used as rear view mirror?
What happens if concave mirror are used as rear view mirror? Answer: Convex mirrors are used in car rear view mirrors as they form a smaller image of the object. Concave mirror on the other hand forms magnified and inverted image of the object. This would form an image of a smaller area and would […]
What is the relationship between current resistance and voltage difference quizlet?
What is the relationship between current resistance and voltage difference quizlet? As described by Ohm’s law, V=IR, the current is proportional to the voltage if the resistance is constant. What is the relationship between current and resistance across a circuit? The relationship between current, voltage and resistance is expressed by Ohm’s Law. This states that […]
What happens to heat when mass increases?
What happens to heat when mass increases? Can heating an object increase its mass or weight? No. Mass is the total amount of matter in an object &weight is a force that depends on gravity. Heating an object increases or decreases its length, area or volume but the mass is always the same. Why is […]
What jobs use scientific notation?
What jobs use scientific notation? Most occupations such as chemist, astronomers, and engineers use it on a daily basis when writing down numbers that are to big or to small to be written out in a reasonable amount of time. What is the scientific notation of 3240000000? Why is 324,000,000 written as 3.24 x 108 […]
What is the process of removing or adding electrons?
What is the process of removing or adding electrons? Answer: ionization. the process of removing or adding electrons from an atom or molecule, which gives the atom or molecule a net charge. Why do electrons follow the Aufbau principle? The Aufbau principle states that electrons fill lower-energy atomic orbitals before filling higher-energy ones (Aufbau is […]
What was wrong with Tom Hanks in Saving Private Ryan?
What was wrong with Tom Hanks in Saving Private Ryan? According to the wiki page of Saving Private Ryan : Just before the Rangers embarked at Portsmouth, England, Miller’s right hand began to shake uncontrollably for unknown reasons, though it hints he was suffering from post-traumatic stress disorder (PTSD). He kept this a secret from […]
What is the function of a diode?
What is the function of a diode? A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. What is the two main function of a diode? Main functions The most common […]