Category: Physics

What happens to the volume of a gas when you double the number of moles of gas? Le Chatelier’s Principle states that: a) When a system at equilibrium is disturbed , a new equilibrium constant is established. What happens to the volume of gas when you double the number of moles of gas while keeping […]

What two types of digestion occur in mouth? Mechanical and Chemical Digestion There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. What does the stomach do in the digestive system? Stomach. The stomach is […]

What happens if I never stretch? Stretching keeps the muscles flexible, strong, and healthy, and we need that flexibility to maintain a range of motion in the joints. Without it, the muscles shorten and become tight. Then, when you call on the muscles for activity, they are weak and unable to extend all the way. […]

Where an object is located in relation to another object? 7.1 An object is in motion if its position changes relative to another object. To decide if you are moving, you can use your chair as a reference point. A reference point is a place or object used for comparison to determine if something is […]

Which of the following is not considered a region of the spinal cord? The d. pelvic region is not considered a region of the spinal cord. Which cells form myelin in the spinal cord? Schwann cells make myelin in the peripheral nervous system (PNS: nerves) and oligodendrocytes in the central nervous system (CNS: brain and […]

Is there anything more powerful than gamma rays? The measurement is exceedingly difficult since cosmic rays can outnumber gamma-rays at these energies by a factor of 10,000 to 1 or more! As the gamma-ray is making its way to our telescopes, it has to traverse through space, where there are photons and particles all around […]

What are the three main types of telescopes? Types of Telescope. There are three main types of telescope. These are refracting telescopes, Newtonian telescopes and Schmidt-Cassegrain telescopes. Why do we use different types of telescope? Most objects give off several frequencies of energy simultaneously. Your body, for instance, glows in thermal infrared down to radio. […]

What is the basic unit of all matter on earth? Atoms are the basic units of matter and the defining structure of elements. The term “atom” comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. What is the […]

Are nitriles always at the end? nitrile shows a -CN group at the end of the chain. As with the previous examples involving acids and acid derivatives, don’t forget that the carbon in the -CN group counts as part of the chain. The old name for this would have been methyl cyanide. How do you […]

What is the percentage error in the surface area of a sphere? SΔS=r2Δr=2×4=8% Was this answer helpful? What is percentage error in sphere? Volume of the sphere is V=43πr3. As per the rule for combination of errors for exponents ΔVV=3Δrr. =3 x 0.015. ΔVV=0.045. Percentage error =ΔVV×100=0.045×100=4.5% What is the error in volume? To calculate […]