Category: Physics

Is light really a particle? Light Is Also a Particle! The main point of Einstein’s light quantum theory is that light’s energy is related to its oscillation frequency. The various properties of light, which is a type of electromagnetic wave, are due to the behavior of extremely small particles called photons that are invisible to […]

How heavy Am I on the moon? Your weight on the Moon is 16.5% what you would experience on Earth. In other words, if you weighed 100 kg on Earth, you would weigh a mere 16.5 kg on the Moon. For you imperial folks, imagine you tipped the scales at 200 pounds. Your weight on […]

When a skier skis down a hill? The correct answer is “c”: the normal force exerted on the skier by the hill is less than the weight of the skier. What forces act on a skier? Gravity, friction and the reaction forces from the snow. These are forces that act upon a skier. A skier […]

Why is nitrogen a gas at room temperature quizlet? Why is nitrogen a gas at room temperature and carbon is a solid? Less energy is required (lower temperatures) to overcome these interactions. It is the LDFs (not the bonds within the molecules) that are overcome when the solid melts. You just studied 27 terms! Why […]

What acid is most commonly present in groundwater? carbonic acid What are four common sources of groundwater pollution? Potential Sources of Groundwater Contamination Storage Tanks. May contain gasoline, oil, chemicals, or other types of liquids and they can either be above or below ground. Septic Systems. Uncontrolled Hazardous Waste. Landfills. Chemicals and Road Salts. Atmospheric […]

At what height from the surface of the earth will the value of G be reduced? Given g=9.81m-2,RE=6.37×106m. At what height from the surface of the Earth will the value of g be reduced by 36% from the value at the surface? Radius of the Earth =6400km. Find the percentage decrease in the wight of […]

What does a PCR gel tell you? Sometimes, more than one DNA sequence might be copied. Gel electrophoresis can be used to check whether or not this happened. This will help you to identify the band containing the DNA of interest. The DNA can then be extracted from the gel and used. What is PCR […]

How much does it cost to drive 300 miles? Cost To Drive 300 Miles MPG $2 per gallon $3 per gallon 3 MPG $200.00 $300.00 4 MPG $150.00 $225.00 5 MPG $120.00 $180.00 6 MPG $100.00 $150.00 How much does it cost me per mile to drive my car? After factoring in the costs of […]

What is an example of minimum wage? For example, a minimum wage of $10 per hour will not affect workers whose marginal productivity in a given line of work is greater than $10 per hour. The legal supply and demand rate remains unchanged for such labor. What was the original minimum wage? $0.25 per hour […]

Is Bass bad for the heart? For most of us, this is nothing to worry about. Unless you have a serious heart condition, the pounding bass shouldn’t affect your heart muscle. But if you feel chest vibrations when you aren’t around loud sounds, this could be a sign of an abnormal heart rhythm – see […]