What is the period for Y Sinx? 2π What does 2 pi n mean? 2nπ comes from the fact that 2π is the period of the cosine function. What is 2 pi used for? When a circle’s diameter is 1, its circumference is π. When a circle’s radius is 1—called a unit circle—its circumference is […]
Will water turn into ice at room temperature?
Will water turn into ice at room temperature? Researchers in Korea have shown that liquid water can freeze into ice at room temperature under certain conditions. Heon Kang and co-workers at Seoul National University confined water in a nano-sized gap and showed that it froze when an electric field was applied (Phys. Rev. Lett. How […]
What is good health class 9?
What is good health class 9? Health is a state of complete physical, mental and social well being. For a healthy life cycle,person needs to have a balanced diet,has to take exercise,lives in proper shelter,takes enough sleep,have good hygiene. Good economic condition and jobs are therefore needed for individual health. Why do we fall sick? […]
What is a wave pattern?
What is a wave pattern? : an undulating line used ornamentally (as in the decoration of pottery) What are the different wave patterns? There are three categories: Longitudinal wave *s – Movement of the particles are parallel to the motion of the energy. Sound waves moving through the air is an example of this type […]
What is energy and its formula?
What is energy and its formula? For the potential energy the formula is. P.E. = mgh. Unit. The SI unit of energy is joules (J), which is named in honour of James Prescott Joule. What is G in potential energy formula? The formula for potential energy depends on the force acting on the two objects. […]
Why do electrons get transferred?
Why do electrons get transferred? Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred are conduction, friction, and polarization. It occurs without direct contact between the two objects. What is the purpose of transferring […]
How do you show reproducibility?
How do you show reproducibility? To perform an environment vs environment reproducibility test , just use the following instructions; Perform a repeatability test in environment A. Record your results, Calculate the mean, standard deviation, and degrees of freedom, Perform a repeatability test in environment B, Record your results, What is reproducibility and why is it […]
What is the main difference between a sensory neuron and a motor neuron?
What is the main difference between a sensory neuron and a motor neuron? When we compare motor neuron vs sensory neuron, the main function of Sensory Neurons is to send sensory signals from sensory organs to the central nervous system. Motor Nerves are responsible for sending motor commands from the central nervous system to the […]