How are life and light connected?

How are life and light connected? Light is the main source of energy for all living organisms. Plants, main sustainers of life, are crucial in this conversion process and need light for photosynthesis that enables them to make their own food and food for others. And, perhaps more importantly, photosynthesis produces oxygen too! Is light […]

How do you convert lumens to Watts?

How do you convert lumens to Watts? Luminous flux in lumens (lm) to electric power in watts (W) calculator. * the predefined luminous efficacy values are typical / average values….Lumens to watts table. Lumens Incandescent light bulb (watts) Fluorescent / LED (watts) 1500 lm 100 W 25 W 2250 lm 150 W 37.5 W 3000 […]

What does mean absolute percentage error tell you?

What does mean absolute percentage error tell you? The mean absolute percentage error (MAPE) is a measure of how accurate a forecast system is. It measures this accuracy as a percentage, and can be calculated as the average absolute percent error for each time period minus actual values divided by actual values. What does mean […]

Why is the epicenter important?

Why is the epicenter important? Hereof, why do we need to know the epicenter of an earthquake? The main importance in determining the epicentre is so that the fault that ruptured causing the earthquake can be identified. If the fault is a recognised fault, then the earthquake can be used to increase confidence in the […]

What happens to energy in a pendulum?

What happens to energy in a pendulum? Once the weighted end of the pendulum is released, it will become active as gravity pulls it downward. Potential energy is converted to kinetic energy, which is the energy exerted by a moving object. An active pendulum has the most kinetic energy at the lowest point of its […]

What are the 2 types of speed training?

What are the 2 types of speed training? There are three main types of speed training; these include assisted sprint training, resisted sprint training and regular sprint training. Assisted speed training. Acceleration and Sprint speed. Coordination training. Sprint endurance. What training improves speed? Interval training involves alternating between periods of hard exercise and rest. It […]

What is example of static friction?

What is example of static friction? Static friction is a force that hinders the movement of an object moving along the path. When two fabrics slide over each other, this friction occurs. There’s friction all around us. When we walk, for instance, our feet are in touch with the floor. What causes static friction? Static […]

What is a frequency in physics?

What is a frequency in physics? Frequency, in physics, the number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion. How do you find frequency in physics? Frequency refers to the number of occurrences of […]

Why are there 3 trials?

Why are there 3 trials? When we do experiments it’s a good idea to do multiple trials, that is, do the same experiment lots of times. When we do multiple trials of the same experiment, we can make sure that our results are consistent and not altered by random events. Multiple trials can be done […]

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