Why do objects float? An object floats when the weight force on the object is balanced by the upward push of the water on the object. If the weight force down is larger than the upward push of the water on the object then the object will sink. Does mass alone determine whether an object […]
Do cell phones affect bees?
Do cell phones affect bees? Environment. Scientists may have found the cause of the world’s sudden dwindling population of bees – and cell phones may be to blame. Research conducted in Lausanne, Switzerland has shown that the signal from cell phones not only confuses bees, but also may lead to their death. Does WIFI affect […]
Can atoms be broken down by chemical means?
Can atoms be broken down by chemical means? consists of atoms of two or more different elements bound together, can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means), has properties that are different from its component elements, and. always contains the same ratio of its […]
What can we do to stop climate change?
What can we do to stop climate change? Here are a dozen easy, effective ways each one of us can make a difference: Speak up! Power your home with renewable energy. Weatherize, weatherize, weatherize. Invest in energy-efficient appliances. Reduce water waste. Actually eat the food you buy—and make less of it meat. Buy better bulbs. […]
Which stage of pregnancy is when the fetus develops its body structures and systems?
Which stage of pregnancy is when the fetus develops its body structures and systems? Week 5 is the start of the “embryonic period.” This is when all the baby’s major systems and structures develop. The embryo’s cells multiply and start to take on specific functions. What actions supports healthy fetal development and prevents harm to […]
What is the difference between natural frequency and damped frequency?
What is the difference between natural frequency and damped frequency? When an undriven, undamped oscillator is displaced from equilibrium, the system will oscillate at its natural frequency. The damped oscillation frequency does not equal the natural frequency. Damping causes the frequency of the damped oscillation to be slightly less than the natural frequency. What is […]
How does thermal energy transferred?
How does thermal energy transferred? Thermal energy typically flows from a warmer material to a cooler material. Generally, when thermal energy is transferred to a material, the motion of its particles speeds up and its temperature increases. There are three methods of thermal energy transfer: conduction, convection, and radiation. What is it called when thermal […]
Why do we need climate models?
Why do we need climate models? Climate models are important tools for improving our understanding and predictability of climate behavior on seasonal, annual, decadal, and centennial time scales. Models investigate the degree to which observed climate changes may be due to natural variability, human activity, or a combination of both. What are the potential causes […]
What country is most likely to be in stage 4 population growth?
What country is most likely to be in stage 4 population growth? China Which factors contribute to a country’s natural population growth select three responses? 1: Fertility rate, death rate, birth rate, and immigration. What are the impacts of rapid population growth? Rapid growth has led to uncontrolled urbanization, which has produced overcrowding, destitution, crime, […]
Why are objects weightless in free fall?
Why are objects weightless in free fall? When in free fall, the only force acting upon your body is the force of gravity – a non-contact force. Since the force of gravity cannot be felt without any other opposing forces, you would have no sensation of it. You would feel weightless when in a state […]