Category: Physics

What are five adaptations of plants? Plants have evolved several adaptations to life on land, including embryo retention, a cuticle, stomata, and vascular tissue. What is an example of a behavioral adaptation in plants? Behavioural adaptations in plants Plant roots which grow downwards may be because of gravity or growing directly towards water to maximise […]

What happens when a fluid cools down? Answer: When the fluid cools, the kinetic energy of the molecules decreases. This causes the molecules to slow down and move closer together. Since the molecules are closer together, the density of the fluid increases and the fluid sinks. What best describes how fluids change as they travel? […]

Can you hear a plane at 20 000 feet? Yes, depending on the type of plane, which would determine how loud it is and what the frequency of its sound output was, in normal cruising flight. How far can you hear a jet? Aircraft noise is also affected by humidity, air density and cloud cover. […]

What are 3 negative factors that affect mental wellness? Unemployment, redundancy, loss of a business, large investment losses or other financial loss can have a negative impact on your mental health. How does social factors affect mental health? Summary. Most aspects of mental illness and psychological well‐being are influenced by social factors (such as gender, […]

How deep can you dig into the earth? 40,230ft What happens if you dig too deep in the earth? To make things more difficult, as they drill deeper into the Earth, they’ll encounter extreme temperatures, possibly in excess of 1,000 degrees Fahrenheit (538 degrees Celsius), and fantastic amounts of pressure — as much as 4 […]

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 is better active or passive noise cancellation? While both passive noise isolation and active noise cancellation allow you to listen to music at lower volumes than earphones without ANC, passive noise isolation is better for your hearing overall. This is because active noise cancellation neutralizes outside noise by creating an equal and opposite noise. […]

What is the Centre of pressure on an aerofoil? Center of Pressure The center of pressure is the point where the total sum of a pressure field acts on a body. In aerospace, this is the point on the airfoil (or wing) where the resultant vector (of lift and drag) acts. What happens to the […]

How do you know if a Bronsted acid is strong? 1. The strongest acids are at the bottom left, and the strongest bases are at the top right. The conjugate base of a strong acid is a very weak base, and, conversely, the conjugate acid of a strong base is a very weak acid. Is […]

What are the warning signs of obesity? 10 warning signs you may be obese Dyspnea or Shortness of breath. People who are obese often suffer from shortness of breath. Aching knees. Obesity negatively impacts your knees. Risk of hypertension or high blood pressure. Backache. Skin problems. Depression. Heartburn. Snoring. What causes extreme obesity? The underlying […]