What is the standard form of 12000000000? The standard form is: 1.2 * 10^10. What is the exponential form of 648? Answer. ANS: 2×2×2×3×3×3×3 =2^3 × 3^4… How the distance to stars is measured? To measure the distance of a star, astronomers use a baseline of 1 astronomical unit (AU), which is the average distance […]
Which mineral properties can you identify without special tools?
Which mineral properties can you identify without special tools? In working with hand samples without specialized tools, mineral hardness is specified by the Mohs hardness scale. The Mohs hardness scale is based 10 reference minerals, from talc the softest (Mohs hardness of 1), to diamond the hardest (Mohs hardness of 10). It is a relative, […]
What is biodiversity Why is it important for human life?
What is biodiversity Why is it important for human life? Biodiversity is important to humans for ecological life support, biodiversity gives a functioning ecosystem that provides oxygen, clear air and water, plant pollutions, pest control, wastewater treatment and lots of ecosystem services. How does biodiversity loss affect humans? More… 2.1 Biodiversity loss has negative effects […]
Can you have a negative mechanical energy?
Can you have a negative mechanical energy? Yes mechanical energy can be negative. Mechanical energy is the sum of potential as well as kinetic energy. Can energy of a body be negative? The kinetic energy of a body cannot be negative because the mass cannot be negative and the square of the speed gives a […]
How do you get marshmallows to sink?
How do you get marshmallows to sink? When you squish the marshmallow, you squeeze out the air, making it denser than the water. Now the flat marshmallow will sink. The more you squish the marshmallow, the lower it will sink. If you are having trouble with a large marshmallow, try a mini marshmallow. What liquid […]
Is there any time lag between action and reaction?
Is there any time lag between action and reaction? 1 Answer. At any instant in time the action and reaction forces are equal – but since as Sofia pointed out they act on different bodies, that doesn’t mean they “cancel out”: each of the bodies experiences one of the forces and accelerates accordingly. How is […]
What is the difference between a screw and a wedge?
What is the difference between a screw and a wedge? A wedge is much bigger than any normal screw. Wedge has a plain surface but screw has a surface with ridges and grooves. • Wedge is typically used for cutting and slicing purposes but screw is typically used for fixing and attaching purposes. Is screw […]
What has 7 protons and 9 Neutrons?
What has 7 protons and 9 Neutrons? Fluorine Which is heavier neutron or proton? High on this list are the masses of subatomic particles. Dozens of particles are known to physicists, but the most familiar are the constituents of atoms: electrons, protons and neutrons. The neutron is very slightly heavier than the proton, by about […]
Why is crystallization done class 11?
Why is crystallization done class 11? Crystallisation of the filtrate This is done to ensure uniform evaporation and to prevent formation of a solid crust. When the volume of the solution is reduced to one half, dip one end of a glass rod in the concentrated solution and cool the drop by blowing on it. […]
Do living organisms defy the second law of thermodynamics?
Do living organisms defy the second law of thermodynamics? We can view the entire universe as an isolated system, leading to the conclusion that the entropy of the universe is tending to a maximum. However, all living things maintain a highly ordered, low entropy structure. Which law of thermodynamics states that absolute zero Cannot be […]