Are mass and force directly proportional?

Are mass and force directly proportional? Newton’s second law of motion (also known as the force law ) states that… net force is directly proportional to mass when acceleration is constant. … Does heat absorption depend on mass? The amount of heat absorbed depends on the mass of the body. The heat energy absorbed is […]

Where does the resistor go on a LED?

Where does the resistor go on a LED? Since this resistor is only being used to limit current through the circuit, it can actually be located on either side of the LED. Placing the resistor on the positive (anode) side of the resistor will have no differing effects from placing the resistor on the negative […]

What is the most important function of stratospheric ozone?

What is the most important function of stratospheric ozone? Stratospheric ozone is a naturally-occurring gas that filters the sun’s ultraviolet (UV) radiation. This is typically regarded as ‘good’ ozone since it reduces the harmful effects of ultraviolet (UV-B) radiation. A diminished ozone layer allows more radiation to reach the Earth’s surface. Why is o3 unstable? […]

What are the 4 solstices?

What are the 4 solstices? So, in the Northern Hemisphere you have: Vernal equinox(about March 21): day and night of equal length, marking the start of spring. Summer solstice (June 20 or 21): longest day of the year, marking the start of summer. Autumnal equinox(about September 23): day and night of equal length, marking the […]

How is air pressure usually measured?

How is air pressure usually measured? A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure. What time […]

What electron microscopes are used for?

What electron microscopes are used for? Electron microscopy (EM) is a technique for obtaining high resolution images of biological and non-biological specimens. It is used in biomedical research to investigate the detailed structure of tissues, cells, organelles and macromolecular complexes. How do electron microscopes help us? The development of the electron microscopes therefore helped scientists […]

What would happen if we dug to the core?

What would happen if we dug to the core? Because of the extreme gravity of the Earth, and your extreme momentum, once you got to the other side, you would fall right through the Earth again. And you would do the same once you neared the other side. You would oscillate back and forth sinusoidally; […]

Who can stop a moving object?

Who can stop a moving object? A force can stop a moving object Place your palm in front of the moving ball. We will observe that moving ball comes to a stop. The palm held in the path of moving rubber ball applies a force to the moving ball. 2)The stopping of a moving football […]

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