What do you do if you hit black ice? Deal with a black ice encounter. If you do hit black ice, your first reaction must be to remain calm and avoid overreacting. The general rule is to do as little as possible and allow the car to pass over the ice. Do not hit the […]
Why is chemical change not easily reversible?
Why is chemical change not easily reversible? chemical change never reversed because it produce new substance after reaction which is not reversible . if it is reversed , it can’t called chemical reaction , it called physical reaction. Is a chemical change reversible? In principle, all chemical reactions are reversible reactions . This means that […]
Is force a base quantity?
Is force a base quantity? The SI is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1…. Derived quantity force Name newton Symbol N Expression in terms of other SI units – Expression in terms of SI base units m·kg·s-2 Is speed a fundamental […]
Does higher volume mean higher density?
Does higher volume mean higher density? Density is determined by an object’s mass and volume. If two objects take up the same volume, but have one has more mass, then it also has a higher density. It is about how heavy something is compared to the same amount (volume) of water. Are volume and mass […]
What is an example of a isolated system?
What is an example of a isolated system? A thermos flask is the best example of an isolated system. A thermos flask is used to keep things either cold or hot. An isolated system does not exchange energy or matter with its surroundings. Is an isolated system? In physical science, an isolated system is either […]
What is the ratio of molecules in 1 mole?
What is the ratio of molecules in 1 mole? 1 mole of any compound is the Avogadro’s number, 6.023×1023 . And, 1 mole of HNO3 = 6.023×1023 molecules. Now, both compounds have the same number of molecules. The ratio of molecules between both the compounds is 1:1 . Which is the correct formula to calculate […]
How do I choose a motor controller?
How do I choose a motor controller? Choosing a Motor Controller The first consideration is the motor’s nominal voltage. Once you have found a range of controllers that can power the motor with the appropriate voltage, the next consideration is the continuous current the controller will need to supply. The Control method is another important […]
What are the examples of force change in size?
What stories do some of the Romanesque metalwork pieces tell?
What stories do some of the Romanesque metalwork pieces tell? What stories do some of the Romanesque metalwork pieces tell? Religious leaders being baptized. What is the major difference between Gothic and Romanesque architecture? Gothic architecture was mainly intended to make the churches look like heaven. The Gothic architecture made the churches bright, colorful, and […]
What is the relationship between different trophic levels?
What is the relationship between different trophic levels? The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and […]