What are objects? Definition: An object is a software bundle of variables and related methods. You can represent real-world objects using software objects. Everything that the software object knows (state) and can do (behavior) is expressed by the variables and methods within that object. Will a styro cup float on water? Styrofoam is insoluble in […]
Why is concave mirror used in Searchlight & head lights?
Why is concave mirror used in Searchlight & head lights? When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances) and at infinity they are approximately parallel. Hence, concave mirrors are used in the headlights of vehicles. What is the role of […]
What would happen if there was no hydrosphere on earth?
What would happen if there was no hydrosphere on earth? We know weather happens in the atmosphere, but without the hydrosphere, there would be no water to evaporate and so no cloud or rain could form. Without oceans and land (hydrosphere and geosphere), there would be no wind (as winds are produced by differences of […]
What is Isrelaxation time?
What is Isrelaxation time? Relaxation time is the time gap between two successive electron collisions in a conductor. The relationship between the relaxation time (T) and drift velocity (Vd) is given below. What is the symbol of relaxation time? (i) Relaxation time (τ): In the absence of an external electric field, the free electrons in […]
What is a healthy breathing rate?
What is a healthy breathing rate? Normal respiration rates for an adult person at rest range from 12 to 16 breaths per minute. Does your oxygen level drop when exercising? The oxygen level in your blood decreases slightly while exercising because physical activities lower the amount of oxygen that binds to hemoglobin. When you’re working […]
What are SI units of mass?
What are the advantages of living near a volcano?
What are the advantages of living near a volcano? volcanic rock and ash provide fertile land which results in a higher crop yield for farmers. tourists are attracted to the volcano, which increases money to the local economy. minerals are contained in lava, eg diamonds – these can be mined to make money. What are […]
What are some long term consequences of desertification?
What are some long term consequences of desertification? Desertification reduces the ability of land to support life, affecting wild species, domestic animals, agricultural crops and people. The reduction in plant cover that accompanies desertification leads to accelerated soil erosion by wind and water. How can we reduce land degradation? 5 possible solutions to soil degradation […]
What is the charge to mass ratio of a proton?
What is the charge to mass ratio of a proton? Alpha particle is a helium nucleus that comprises two protons and two neutrons, and the charge is twice the charge of the proton while the mass is around four times greater. Mass of helium = 4m….Thank you. Related Questions & Answers Breathing Is Controlled By […]
What are some short term effects of stress?
What are some short term effects of stress? Short term: You may feel butterflies in your stomach, pain, or nausea, or might even vomit. Your appetite can change and you can have diarrhea, constipation, or heartburn. Long term: Stress can lead to severe chronic pain and changes in your eating habits. You can also develop […]