Category: Physics

What are some similarities and differences between physical and chemical weathering? While physical weathering breaks down a rock’s physical structure, chemical weathering alters a rock’s chemical composition. Physical weathering works with mechanical forces, such as friction and impact, while chemical weathering takes place at the molecular level with the exchange of ions and cations. Why […]

Does altitude affect cooking time? At high altitudes: Air pressure is lower, so foods take longer to cook. Temperatures and/or cook times may need to be increased. Water boils at a lower temperature, so foods prepared with water (such as pastas and soups) may take longer to cook. How do you bake at elevation? High-Altitude […]

What is the efficiency ratio formula? Definition of efficiency ratio The efficiency ratio is calculated by dividing the bank’s noninterest expenses by their net income. Banks strive for lower e fficiency ratios since a lower e fficiency ratio indicates that the bank is earning more than it is spending. What is the formula for productivity? […]

Is infrared helpful or harmful? Medical studies indicate that prolonged IR exposure can lead to lens, cornea and retina damage, including cataracts, corneal ulcers and retinal burns, respectively. To help protect against long-term IR exposure, workers can wear products with IR filters or reflective coatings. What are the advantages and disadvantages of infrared waves? 1) […]

What is the conversion factor between km H 2 and M S 2? 1 Kilometer per Hour Squared: Acceleration of 1 kilometer per hour per hour. 1 Kilometer per hour squared is equal to 1/12960 meters per second squared (SI unit). 1 km/h2 = 0.000 077 160 4938 m/s2. What is a conversion formula? The […]

What are the three types of municipalities? Categories. Municipalities can belong to one of three categories: metropolitan, district and local (referred to in the constitution as categories A, B and C). What are the 4 types of local government? There are four main types of local government- counties, municipalities (cities and town), special districts, and […]

What are the three areas of focus in the study of kinesiology? Specialized areas of study in Kinesiology include biomechanics, psychology of physical activity, exercise physiology, history of physical activity, measurement of physical activity, motor development, motor learning and control, physical activity and public health, physical education pedagogy, sport management, sports … What are the […]

What is the number 1 food allergy? Shellfish is the most common food allergen in the U.S., affecting approximately 7 million adults, according to the study. Milk allergies affect nearly 5 million people, followed closely by peanut allergies, which affect about 5 million people. What can you do to prevent food allergy emergencies in your […]

What month do we get more daylight? March Why is there less sun in the winter? During winter, the Northern Hemisphere leans away from the sun, there are fewer daylight hours, and the sun hits us at an angle; this makes it appear lower in the sky. There is less heating because the angled sun’s […]

Is the control group the independent variable? The independent variable is “controlled” or held constant in the control group. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an […]