How long is a true day?

How long is a true day? 23 hours and 56 minutes How many degrees does the Earth turn in 24 hours? 360 How many degree make an hour? 15 degrees How many degrees does the Earth turn in two days? While the Earth is rotating on its axis it is also moving along its orbit […]

What is the most slippery metal?

What is the most slippery metal? In fact, the low static coefficient of fric- tion of Teflon-on-Teflon, 0.04, made it the most slippery solid substance on earth. Further experimentation revealed the reasons for these properties: the carbon backbone of the polymer chain was com- pletely surrounded by fluorine atoms. Why is friction less on snow […]

Who invented emotions?

Who invented emotions? Thomas Brown Why do we develop feelings for someone? The reason we develop feelings for someone is that it allows us to discard some of the burdensome protections that we carry with us every day and get closer to the love we have inside of us. Of course, the fact that we […]

What operates best under bright light conditions?

What operates best under bright light conditions? The fovea contains cones that possess high levels of visual acuity and operate best in bright light conditions. What is the process of receiving stimulus energies? The process of receiving stimulus energies from the external environment and transforming those energies into neural energy is called SENSATION. The process […]

Does frequency increase with tension?

Does frequency increase with tension? Increasing the tension increases the wave speed so the frequency increases. What is the fundamental frequency of the string? The lowest resonance frequency (n=1) is known as the fundamental frequency for the string. All the higher frequencies are known as harmonics – these are integer multiples of the fundamental frequency. […]

What motion is illustrated by a ball thrown horizontally?

What motion is illustrated by a ball thrown horizontally? Objects experiencing projectile motion have a constant velocity in the horizontal direction, and a constantly changing velocity in the vertical direction. The trajectory resulting from this combination always has the shape of a parabola. What are the standard assumptions we make for horizontally launched projectiles? Assumptions […]

How do you tell if a capacitor has failed?

How do you tell if a capacitor has failed? Use the multimeter and read the voltage on the capacitor leads. The voltage should read near 9 volts. The voltage will discharge rapidly to 0V because the capacitor is discharging through the multimeter. If the capacitor will not retain that voltage, it is defective and should […]

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