Category: Physics

What are the negatives of biofuels? Disadvantages of Biofuels High Cost of Production. Even with all the benefits associated with biofuels, they are quite expensive to produce in the current market. Monoculture. Use of Fertilizers. Shortage of Food. Industrial Pollution. Water Use. Future Rise in Price. Changes in Land Use. What are advantages and disadvantages […]

How do we measure distance? Step 1: Add the first point On your Android phone or tablet, open the Google Maps app . Touch and hold anywhere on the map. You’ll see a red pin appear. At the bottom, tap the name of the place. On the place’s page, scroll down and choose Measure distance. […]

What is Arcsin equal to? arcsin sin30 = 0.5 Means: The sine of 30 degrees is 0.5 arcsin 0.5 = 30 Means: The angle whose sin is 0.5 is 30 degrees. How do you calculate Arcsin? arcsin is defined to be the inverse of sin but restricted to a certain range. Hence arcsin(sin(x))=x if x […]

Which of these conditions will cause a rock to melt? The three factors that affect whether rock melts include temperature, pressure, and the presence of fluids in the rock. Rock melts when the temperature of the rock increases to above the melting point of minerals in the rock. Rock melts when excess pressure is removed […]

What is Hertz formula? We denote frequency by Frequency is measured in Hertz = Hz = 1/seconds. If a wave with a wavelength of 2 meters is going by at a speed of 6 meters/second, then 3 complete waves go by in 1 second. That is, the frequency is 6/2 = 3 waves/second, or 3 […]

Is it safe to use a microwave that has peeling paint inside? If the coating is actively flaking or paint is peeling anywhere inside the oven cavity (including under the turntable) discontinue the use of the microwave and replace it. The microwave is not repairable. The inadvertent ingestion of small amounts of peeling coating does […]

Why do I cry when I yawn? Our eyes need to stay wet, so these glands produce tears all the time to slowly release onto our eyes. When we yawn, our face muscle contract and put pressure on the tear glands. This causes them to release excess tears. Together, this means that your eyes water […]

How do I get rid of a urine infection without antibiotics? To treat a UTI without antibiotics, people can try the following home remedies: Stay hydrated. Share on Pinterest Drinking water regularly may help to treat a UTI. Urinate when the need arises. Drink cranberry juice. Use probiotics. Get enough vitamin C. Wipe from front […]

How do you log physical activity? How to Use a Weekly Physical Activity Log Record your activity goals. Record the type of activity you do and how long you’re active. Record notes on how the activity felt, what you noticed and things you learned while doing the activity. Record any changes you’d like to make […]

Why are fossils so important? Fossils of any kind are useful in “reading the rock record,” meaning they help us decipher the history of the earth. They can help us determine the geologic age and environment (the paleoenvironment) in which they were deposited. What are the five types of fossils? Five different types of fossils […]