When waves pass through an opening or around a corner the waves bend as they pass the corners? Refraction is the change in direction of waves that occurs when waves travel from one medium to another. Refraction is always accompanied by a wavelength and speed change. Diffraction is the bending of waves around obstacles and […]
Will the next force be equal to zero?
What are the components of centripetal force?
What are the components of centripetal force? As a bucket of water is tied to a string and spun in a circle, the tension force acting upon the bucket provides the centripetal force required for circular motion. As the moon orbits the Earth, the force of gravity acting upon the moon provides the centripetal force […]
Why magnesium ion has a charge of 2+?
What energy breaks down carbohydrates using 1 to 2 minutes of energy?
What energy breaks down carbohydrates using 1 to 2 minutes of energy? Answer: Lactic Acid energy system starts to feed the muscle energy if the activity is longer than 6 seconds but less then two minutes. Hope it helps. What’s the difference between glucose and ATP? Answer: In terms of energy there is a difference […]
What is needed to stop a moving object?
What is needed to stop a moving object? The force stopping the object’s motion might be an obvious one – the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes […]
Why do blue objects look blue?
Why do blue objects look blue? Objects that appear blue do so because they reflect blue light but absorb all other colors, so our eyes only see the blue light remaining. When a blue object absorbs the energy from non-blue light, it heats up. What Colour does a blue object appear in blue light? A […]
What makes water drinkable?
What makes water drinkable? Filtration – The clear water on top passes through filters composed of sand, gravel and charcoal to remove dissolved particles such as dust, parasites, bacteria, viruses and chemicals. Disinfection – Chlorine or chloramine is added to kill parasites, bacteria, viruses and germs. How do you sanitize water? Boil water, if you […]
What is a real life example of a single replacement reaction?
What is a real life example of a single replacement reaction? An example of a single replacement reaction occurs when potassium (K) reacts with water (H2O). A colorless solid compound named potassium hydroxide (KOH) forms, and hydrogen gas (H2) is set free. The equation for the reaction is: 2K + 2H2O → 2KOH + H. […]
Do magnets ruin dvds?
Do magnets ruin dvds? no normal magnet can damage a CD/DVD. The CD/DVD is physically burned into the surface of the disc in a non-magnet way. However CD/DVD still contain metal so if you had a ridiculously strong magnet there is a minute chance of damaging it. Do magnets destroy CDs? Though they might not […]