Category: Physics

What are the 3 steps to preventing a collision? Depending on the situation, you can do one of these 3 things to prevent a collision: stop, steer away or speed up. Read the Collision Avoidance section to learn about the circumstances, when you can apply one or another technique and their advantages and disadvantages. What […]

How long would it take if the sun exploded? around 8 minutes How much longer will the world last? This is expected to occur between 1.5 and 4.5 billion years from now. A high obliquity would probably result in dramatic changes in the climate and may destroy the planet’s habitability. Which IT technology is most […]

Does Venus have CO2? Venus today is a hellish world. It has a crushing carbon dioxide atmosphere 90 times as thick as Earth’s. There is almost no water vapor. With no water left on the surface, carbon dioxide built up in the atmosphere, leading to a so-called runaway greenhouse effect that created present conditions. What […]

What is the equation for conservation of momentum used in inelastic collisions? Inelastic Collision Their total internal kinetic energy is initially 1 2 mv 2 + 1 2 mv 2 = mv 2 1 2 mv 2 + 1 2 mv 2 = mv 2 . The two objects come to rest after sticking together, […]

What is the hypothesis of a research paper? A research hypothesis is a statement of expectation or prediction that will be tested by research. Before formulating your research hypothesis, read about the topic of interest to you. Do all research papers have a hypothesis? Not all studies have hypotheses. Sometimes a study is designed to […]

What is configure to order? Configure-to-Order (CTO) represents the ability for a user to define the component make-up (configuration) of a product at the very moment of ordering that product, and a vendor to subsequently build that configuration dynamically upon receipt of the order. What is a made to order item? Make to order (MTO), […]

What is the difference between freezing and melting? Solids and liquids can be changed from one state to another by heating or cooling. Heat melts a solid and turns it into a liquid. Cooling freezes a liquid into a solid. What is sublimation solidification? (d) Solidification: The process of change of matter from the liquid […]

What type of reaction is CO2 H2O → C6H12O6 O2? In the photosynthesis reaction, CO2 + H2O are on the left side of the arrow and are the reactants. Reactants undergo changes (demonstrated by the arrow) to become newly formed products, C6H12O6 + O2 (on the right side of the arrow). What is the balanced […]

Does not affect the magnetic force on a moving charged particle? Magnetic force is always perpendicular to velocity, so that it does no work on the charged particle. The particle’s kinetic energy and speed thus remain constant. The direction of motion is affected, but not the speed. How do you beat a security tag at […]

What is the contribution of John Dalton? Although a schoolteacher, a meteorologist, and an expert on color blindness, John Dalton is best known for his pioneering theory of atomism. He also developed methods to calculate atomic weights and structures and formulated the law of partial pressures. What parts of Dalton’s theory are still true? 1) […]