What are the two kinds of forces? There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object. What are the units of normal force? The unit […]
What is the salt formula?
What would happen if helium lost an electron?
What would happen if helium lost an electron? What happens to a helium atom when it loses an electron? Notes: When a helium atom loses electrons, it get positive charge because the number of protons in the helium atom becomes greater than the number of electrons. When helium atom loses one electron it becomes positive […]
What are the 4 types of flexibility?
What are the 4 types of flexibility? There are four general methods used to develop flexibility: static, ballistic, PNF, and dynamic stretching. What are the two types of flexibility? There are two types of flexibility exercises: static stretching, in which you stretch a muscle without moving, and dynamic stretching, which combines stretching with movements. What […]
What is a good LDL level for a woman?
What is a good LDL level for a woman? So what are your target numbers? According to Michos, an ideal LDL cholesterol level should be less than 70 mg/dl, and a woman’s HDL cholesterol level ideally should be close to 50 mg/dl. Triglycerides should be less than 150 mg/dl. As Michos notes, total cholesterol levels […]
How do you interpret relative frequency?
How do you interpret relative frequency? A relative frequency is the ratio (fraction or proportion) of the number of times a value of the data occurs in the set of all outcomes to the total number of outcomes. To find the relative frequencies, divide each frequency by the total number of students in the sample–in […]
Can mass actually be destroyed?
Can mass actually be destroyed? The law implies that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form. Mass is also not generally conserved in open systems. Such is the case when various forms of energy and matter are […]
What does the velocity time graph gives?
What does the velocity time graph gives? The area under a speed-time graph represents the distance travelled. This is a velocity time graph of an object moving in a straight line due North. The displacement of this object is the area of the velocity time graph. To calculate the displacement we need to calculate the […]
Which of the following has minimum wavelength?
Which of the following has minimum wavelength? gamma rays Which of the following has maximum de Broglie wavelength? Electron has the least mass, so its wavelength is maximum. Which has the largest de Broglie wavelength for the same speed? Of the following, the one which has the largest de-Broglie wavlength for the same speed is. […]
What increases solubility?
What increases solubility? For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions. How does crushing affect solubility? Crushing it has increased the surface […]