Does friction depend on surface area? Friction is a contact force when two surfaces interact. Notice that both of these friction formulas ONLY depend on the coefficient of friction and the normal force. It does not depend the area of contact, it doesn’t depend on the sliding speed. Is friction dependent on mass? Friction DOES […]
What are two differences between a compound and mixture?
What are two differences between a compound and mixture? Mixtures are the impure substances, made up of two or more physically mixed substances and not in the fixed ratio. Compounds are the pure form, made up of two or more chemically mixed elements and in a fixed ratio. Mixtures do not have meting or boiling […]
What are the 4 main provisions of the Endangered Species Act?
What are the 4 main provisions of the Endangered Species Act? The Endangered Species Act (“ESA”) prohibits importing, exporting, taking, possessing, selling, and transporting endangered and threatened species (with certain exceptions). ESA also provides for the designation of critical habitat and prohibits the destruction of that habitat. Is the Endangered Species Act successful? The US […]
Which planet has the slowest orbital velocity?
Which planet has the slowest orbital velocity? If Pluto had maintained its planet status, it would have the slowest orbital speed at just 10,438 miles per hour. Instead, Neptune again wins with an orbital speed of 12,148 miles per hour. Compared to Earth’s 66,621 miles per hour, Neptune is practically sluggish. What season is Earth’s […]
What is the velocity of star?
What is the velocity of star? In the Milky Way, stars usually have velocities on the order of 100 km/s, whereas hypervelocity stars typically have velocities on the order of 1000 km/s. Most of these fast-moving stars are thought to be produced near the center of the Milky Way, where there is a larger population […]
What happens if I put a balloon in the freezer?
What happens if I put a balloon in the freezer? What would happen if you put a balloon in the freezer? As the air cools it compresses and therefore exerts less pressure on the balloon. If cold enough your balloon will be visibly deflated. If you then bring back to room temperature it will return […]
Which best describes why diamond ring will sometimes sparkle different colors in normal white light?
Which best describes why diamond ring will sometimes sparkle different colors in normal white light? The ___________ of a wave is the bending of a wave as it passes through one medium to another medium. Which best describes why a diamond ring will sometimes sparkle different colors in normal white light? Constructive interference will occur, […]
What are the 7 health related fitness?
What are the 7 health related fitness? Health-related fitness refers to the components of fitness (cardiorespiratory endurance, muscular strength, muscular endurance, and flexibility) [7] that are affected by habitual physical activity and are related to various health outcomes. What are the 3 health related fitness test? There are five areas of health related fitness. They […]
Why did Ebbinghaus use nonsense syllables?
Why did Ebbinghaus use nonsense syllables? Ebbinghaus had one experimental subject: himself. Nonsense syllables were stimuli Ebbinghaus had never seen before. He wanted to study memory for things being learned for the first time, so nonsense syllables seemed to meet his needs. Why did Ebbinghaus study memory for nonsense syllables quizlet? Why did Hermann Ebbinghaus […]
What statement summarizes the difference between a law and a theory?
What statement summarizes the difference between a law and a theory? Which statement summarizes the difference between a law and a theory? A law describes natural phenomena, but a theory explains why those phenomena occur. The data from one particular experiment do not agree with a current theory. What is the best reason for the […]