Which two factors are needed to calculate the velocity of an object? The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is a physical vector quantity; both magnitude and direction are needed to define it. Speed, the […]
What are the three areas of focus in the study of kinesiology?
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 do you mean by cost efficiency?
What do you mean by cost efficiency? As explained in the example above, cost-efficiency is a type of business efficiency strategy. Simply put, it is the act of saving money by making a product or performing an activity in a better way. Businesses measure cost-efficiency by monitoring the ratio of the output produced to the […]
Why are objects Coloured?
Why are objects Coloured? Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. The colours we see are the wavelengths that are reflected or transmitted. White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected. Why is red the […]
Which metal is a poor conductor of electricity?
Which metal is a poor conductor of electricity? Bismuth and tungsten are poor conductors of electricity. Can diamonds stop a bullet? Pound for pound, diamonds are not very good at stopping bullets. The energy absorbed by diamond shattering is much less than the energy absorbed by metals deforming. A plate of steel would be better […]
What is the force on a current carrying conductor?
How does the apple taste?
What do you call a substance dissolved any solution?
What do you call a substance dissolved any solution? When one substance dissolves into another, a solution is formed. A solution is a homogeneous mixture consisting of a solute dissolved into a solvent . The solute is the substance that is being dissolved, while the solvent is the dissolving medium. Is caffeine a solute? Coffee […]
Did medieval archers use tabs?
Did medieval archers use tabs? English archers usually shot with two fingers and wore a tab that was more like a tied on glove, or an actual glove. Source: Social and Military History of the Longbow, by Hardy. Native Americans generally did not, but many groups used modified pinch grips. Did medieval archers use gloves? […]
Which star has the shortest lifespan?
Which star has the shortest lifespan? red dwarfs Which star has the longest life? The stars with the longest lifetimes are red dwarfs; some may be nearly as old as the universe itself. Red Dwarf Stars. Astronomers define a red dwarf as a star having between about 0.08 and 0.5 times the mass of the […]