Category: Physics

What does 100 humidity feel like? If the air is at 100 percent relative humidity, sweat will not evaporate into the air. If the air temperature is 75 degrees Fahrenheit (24 C) and the relative humidity is 100 percent, we feel like it’s 80 degrees (27 C) out, and you start praying that you had […]

What happens when air is removed from a water bottle? WHAT IS GOING ON? Even though you put a hole in the water bottle, since the cap is on, the air pressure pushing on the outside of the bottle will keep the water inside. When you remove the cap, the air pressure changes. Air starts […]

Has there ever been a death at Cedar Point? On August 13, 2015, a 45-year-old man was killed by the roller coaster after going into the ride’s restricted area to retrieve a dropped cell phone. He was struck in the back of the head by a passing train. Park emergency crews attempted to revive him, […]

Do dense objects sink? Density is a measure of how heavy something is compared to its size. If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float. What do all sinking objects have in common? What do sinking objects […]

Where can a third charge be placed so that? Answers and Replies A charge of +2q is placed at the origin and a second charge of -q is placed at x= 3.0cm. Where can a third charge +Q be placed so that it experiences a zero force? The 3rd charge could end up anywhere on […]

Who created the law of conservation of charge? William Watson At what point of a closed circuit conservation of charge is valid? Kirchhoff’s second law, also known as the Kirchhoff’s voltage law (KVL) states that the sum of all voltages around a closed loop in any circuit must be equal to zero. This again is […]

What are 2 types of stressors? There are two broad categories of stressors: Physiological (or physical) stressors and Psychological Stressors. What are positive stressors? Positive stress, otherwise known as good stress or eustress, is the type of stress response that we feel when we get excited. Positive stress can also refer to the times you […]

What are three signs of the inflammatory response? What are the signs of inflammation? The four cardinal signs of inflammation are redness (Latin rubor), heat (calor), swelling (tumor), and pain (dolor). Redness is caused by the dilation of small blood vessels in the area of injury. Does vitamin D help with inflammation? Beyond its critical […]

What makes a bucket of water lighter? Answer. That is because the bucket is pushed up by the upthrust or buoyant force, when it is inside the water. This happens because when the bucket is in water, it experiences an upthrust in the vertically upward direction (2 forces acting to pull upwards while one force […]

What is Fitt formula? The FITT formula is a formula in which each letter represents a factor for determining how to obtain fitness benefits from physical activity: F=frequency, I=intensity, T=time and T=type. What is time in the Fitt formula? Intensity: refers to the intensity of exercise undertaken or how hard you exercise. Time: refers to […]