What is the evidence of nebular theory? What Evidence do we have of a Nebular Theory-type development? We have observed discs of gas and dust around other stars. We can also see evidence of stars and planets forming in clouds of gas and dust; young planet systems in the making are called Proplyds. What is […]
Is ethanol solution a dependent variable?
Is ethanol solution a dependent variable? Variables: Independent variable: Reagents (ethanol, Na, concentrated ethanoic (acetic) acid, concentrated sulphuric acid, 2-hydroxybenzoic acid, pentanol, dilute sulphuric acid, potassium dichromate(VI) solution, propan-2-ol) Dependent variable: The qualitative changes in the substance (smell, colour, percipitate etc.) What factors could affect Daphnia heart rate? Daphnia is poikilothermic, which means that its […]
Do you lose hair with radiation therapy?
Do you lose hair with radiation therapy? Radiation therapy can also cause hair loss on the part of the body that is being treated. Hair loss is called alopecia. Talk with your health care team to learn if the cancer treatment you will be receiving causes hair loss. How can I reduce WiFi radiation in […]
What are the four main electrical units of measurement?
What are the four main electrical units of measurement? The standard units of electrical measurement used for the expression of voltage, current and resistance are the Volt [ V ], Ampere [ A ] and Ohm [ Ω ] respectively. Is lightning current or static electricity? Lightning is caused by a buildup of static electricity […]
Can you end a letter with much appreciated?
Can you end a letter with much appreciated? It wouldn’t be taken as condescending because you have not received any response that would anticipate a declined offer. Essentially if you are starting a conversation asking for a request, “Much appreciated” is the best sign-off. When in doubt, it’s always best to use “thank you” in […]
What is constant acceleration equal to?
What is constant acceleration equal to? If the velocity of the particle changes at a constant rate, then this rate is called the constant acceleration. For example, if the velocity of a particle moving in a straight line changes uniformly (at a constant rate of change) from 2 m/s to 5 m/s over one second, […]
Is color blindness a single gene disorder?
Is color blindness a single gene disorder? Colour blindness is a usually a genetic (hereditary) condition (you are born with it). Red/green and blue colour blindness is usually passed down from your parents. The gene which is responsible for the condition is carried on the X chromosome and this is the reason why many more […]
What does it mean when a ship honks 3 times?
Why can work output never be more than work input?
Why can work output never be more than work input? Because: Some of the work done by the machine is used to overcome the friction created by the use of the machine. Work output can never be greater than work input. Machines allow force to be applied over a greater distance, which means that less […]
What is the difference between a crystalline material and one with an amorphous structure?
What is the difference between a crystalline material and one with an amorphous structure? Crystalline solids have well-defined edges and faces, diffract x-rays, and tend to have sharp melting points. In contrast, amorphous solids have irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures. Which […]