What factors affect air resistance? The amount of air resistance an object experiences depends on its speed, its cross-sectional area, its shape and the density of the air. Air densities vary with altitude, temperature and humidity. Which of the following is an effective way to reduce drag force? Designing a more streamlined shape and reducing […]
What causes red fur on dogs?
What causes red fur on dogs? Red fur staining is caused by a compound called porphyrin. Porphyrins are iron-containing molecules produced when the body breaks down red blood cells. They are removed from the body primarily through feces, but are also in urine, tears and saliva. Why does my white dog’s skin turn pink? Your […]
What is the intensity of the light after it passes through the second polarizer?
What is the intensity of the light after it passes through the second polarizer? The intensity I of polarized light after passing through a polarizing filter is I = I0 cos2 θ, where I0 is the original intensity and θ is the angle between the direction of polarization and the axis of the filter. Polarization […]
How are water mills used today?
How are water mills used today? The most common use of water mills historically and in modern day developing countries is for grinding grains into flour. These are called gristmills, corn mills or flour mills. Early wheel design in ancient Greece and Rome employed horizontal paddles that were called Norse wheels. Can a water mill […]
What are the threats in fashion industry?
What are the threats in fashion industry? OUR BLOG The top 5 threats facing the apparel industry today. Share. Cost of raw materials. Everything has to be made from something, and clothing is no exception. Transportation costs. Rising labour costs. Millennials becoming the largest market. Cyber attacks. Looking towards the future. What are some challenges […]
Is Yugi alive in 5Ds?
How do you beat the hall of the destroyer?
How do you beat the hall of the destroyer? Hall of the Destroyer You can “cheat” by increasing battle speed in the game options which will speed up the fight without affecting the pace of his march which may help, and defeating him will allow you to use a switch located behind his starting point […]
How do I calculate change in velocity?
How do I calculate change in velocity? Multiply the acceleration by time to obtain the velocity change: velocity change = 6.95 * 4 = 27.8 m/s . Since the initial velocity was zero, the final velocity is equal to the change of speed. You can convert units to km/h by multiplying the result by 3.6: […]
Why do stars move when I stare at them?
Why do stars move when I stare at them? You’re absolutely right that stars twinkle — and sometimes appear to move around — due to our atmosphere “scrambling” their light as it travels from the top of Earth’s atmosphere to the ground. First, stars close to the horizon twinkle more because their light must travel […]
What are the characteristics of a groundwater?
What are the characteristics of a groundwater? Some of the most typical characteristics of groundwater are weak turbidity, a constant temperature and chemical composition and almost overall absence of oxygen. Circulating groundwater can have extreme variation in the composition with the appearance of pollutants and various contaminants. What is groundwater hydrology? Hydrogeology is the study […]