Is friction a form of mechanical energy? The mechanical energy of the system remains constant provided there is no loss of energy due to friction. The energy would transform to kinetic energy when the speed is increasing. The mechanical energy of the system increases provided there is no loss of energy due to friction. Is […]
Which metal oxides is easiest to decompose on heating?
Which metal oxides is easiest to decompose on heating? The simplest kind of decomposition reaction is when a binary compound decomposes into its elements. Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen […]
What is the reaction force that propels a rocket forward?
What is the reaction force that propels a rocket forward? As these gases are pushed out in one direction, there is a reaction force that pushes the rocket in the other direction. This reaction force is called thrust. What is the difference between space shuttles and other rockets? The space shuttle launched like a rocket. […]
What is a weakness of repeated measures?
What is a weakness of repeated measures? Repeated measures designs have some disadvantages compared to designs that have independent groups. The biggest drawbacks are known as order effects, and they are caused by exposing the subjects to multiple treatments. Order effects are related to the order that treatments are given but not due to the […]
What does light mean?
What does light mean? Light is one of the most universal and fundamental symbols. It is the spiritual and the divine, it is illumination and intelligence. Light is the source of goodness and the ultimate reality, and it accompanies transcendence into the Nirvana of Buddhist doctrine. What does light mean in life? It may mean […]
What is the ratio of velocity to speed?
What is the ratio of velocity to speed? The displacement of the body in given time is always equal to or less than distance covered, because, velocity is displacement per unit time and speed is distance covered per unit time, therefore, ratio of magnitude of velocity and speed is always equal to or less than […]
What kind of information does a life cycle cost LCC analysis provide?
What kind of information does a life cycle cost LCC analysis provide? Performing a life-cycle cost analysis (LCC) gives the total cost of a lighting system—including all expenses incurred over the life of the system. What is lowest life cycle cost? Lowest life-cycle cost (LCC) is the most straightforward and easy-to-interpret measure of economic evaluation. […]
How do the properties of water benefit living organisms?
How do the properties of water benefit living organisms? Water’s extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water’s role as a solvent helps cells transport and use substances like […]
Do lungs turn pink again?
Do lungs turn pink again? The lung loses tiny blood vessels and can’t grow new ones. So that’s permanent. [When it comes to cancer], we calculate that the risk for lung cancer probably returns to that of a nonsmoker somewhere between 10 and 15 years after smoking cessation. Can lungs heal after 40 years of […]
Why is frost shattering climate related?
Why is frost shattering climate related? Freeze-Thaw Weathering: also called frost-shattering as it occurs in cold climates when temperatures are often around freezing point and where exposed rocks contain many cracks. As the water turns into ice it expands and exerts pressure on the surrounding rock, causing pieces to break off. What is the meaning […]