Category: Physics

What is the 3 classification of science? There are three main branches of science: physical science, Earth science, and life science. Physical science is the study of inanimate natural objects and the laws that govern them. It includes physics, chemistry and astronomy. Where are protist found? Most protists can be found in moist and wet […]

What type of movement is exhibited at the knee joint? The knee joint is a hinge type synovial joint, which mainly allows for flexion and extension (and a small degree of medial and lateral rotation). It is formed by articulations between the patella, femur and tibia. What are the 7 principles of biomechanics? Seven Principles […]

Are GMOs safe? The U.S. Food and Drug Administration (FDA), U.S. Environmental Protection Agency (EPA), and U.S. Department of Agriculture (USDA) ensure that GMOs are safe for human, plant, and animal health. Is GMO free the same as organic? The use of genetic engineering, or genetically modified organisms (GMOs), is prohibited in organic products. This […]

How do rocks play an important role in formation of soil? They help in the formation of soil through a process called weathering. The type of soil under your feet is dependent on the bedrock deep below the surface. As the bedrock breaks down, smaller pieces move to the surface and mix with the existing […]

What is the purpose of permanent magnet generator? A permanent magnet generator is a device that converts mechanical energy to electrical energy. In this device the rotor windings have been replaced with permanent magnets. These devices do not require a separate DC supply for the excitation circuit or do they have slip rings and contact […]

What happens to kinetic energy when mass is constant and speed is tripled? 1 Expert Answer a)So if the mass triples then the KE triples too. The relationship between Kinetic Energy and velocity is also directly proportional but with the square of the velocity. Hence, KE is 9 times greater. What will be the kinetic […]

Is minutes a metric unit? Metric time is the measure of time intervals using the metric system. Other units of time: minute, hour, and day, are accepted for use with SI, but are not part of it. What if time were metric? A proper metric system for time would probably drop the use of hours, […]

How do we affect the atmosphere? There is substantial evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth’s atmosphere, ocean and land surface to increase … How […]

Which country has the highest GDP growth rate in 2020? List (2020) Rank Country/region Real GDP growth rate (%) 1 Pakistan 1.9 3 Libya -66.7 4 Dominica -8.8 5 Ethiopia 1.9 Which country has the best economy 2020? 1. United States GDP – Nominal: $20.81 trillion. GDP per Capita: $63,051. GDP – Purchasing Power Parity […]

Do humans have 46 genes? In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females. Do humans have 23 or 46 chromosomes? Humans have 23 […]