Category: Physics

What is the heart of computer? The CPU, or rather microprocessor, is the heart of any computer system. What is the brain of a PC? The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results. The CPU is constantly following instructions of computer programs […]

How do you find the maximum line of best fit? 4. Your final uncertainty in the stated value of the slope of your best fit line is: (max slope – min slope)/2. Note that by using this technique, you may get max and min lines that do not go through the error boxes of every […]

What happens when you mix sand and water? When we mix sand and water, no reaction takes place. The sand simply settles down at the bottom of the water container. This is because sand is heavier than water and hence cannot float in water. In comparison, if we mix something like salt or sugar in […]

How does the Doppler effect cause a sirens pitch to increase as it approaches you Apex? How does the Doppler effect cause a siren’s pitch to increase as it approaches you? A. Sound waves are spread out, increasing wavelength and. Sound waves are pushed closer together, increasing wavelength. What is the Doppler effect used to […]

Which statement is correct light can travel in a vacuum? Answer Expert Verified The correct statement is: Light can travel in a vacuum, and its speed is constant if the source is moving or stationary. Light isn’t effected by a vacuum. What is correct about light in vacuum? Light, in a vacuum, travels at the […]

What keeps the heat and light in Earth? The Greenhouse Effect The Earth is surrounded by a layer of gases called the atmosphere. The Sun is much hotter than the Earth and it gives off rays (radiation) that travel through the atmosphere and reach the Earth. The rays of the Sun warm the Earth and […]

How do plants capture and use light in photosynthesis? Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Why do plants appear green in Colour? So, plants and […]

On what factors does the kinetic energy depends? The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) that an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent […]

What sunset symbolizes in life? The sunset symbolizes the completion of a day’s work and shows the passage of time. As the sun sets, it is time to end the day and take a break. The awesome beauty of the setting sun is also symbolic of the beauty and mystery of life itself. What do […]

What is the formula for calculating half-life? How to calculate the half-life Determine the initial amount of a substance. For example, N(0) = 2.5 kg . Determine the final amount of a substance – for instance, N(t) = 2.1 kg . Measure how long it took for that amount of material to decay. Input these […]