Category: Physics

What does B horizon mean? : a subsurface soil layer that is immediately beneath the A horizon from which it obtains organic matter chiefly by illuviation and is usually distinguished by less weathering. What is another name for C horizon? Alternative Title: soil horizon. What does C horizon mean? : the soil layer lying beneath […]

What is the purpose of a distance-time graph? A distance-time graph shows how far an object has travelled in a given time. It is a simple line graph that denotes distance versus time findings on the graph. Distance is plotted on the Y-axis. What is the distance between two nodes in a graph? In the […]

What is the loss of traction most difficult to identify quickly? Signs of hydroplaning – this is the most difficult loss of traction for a driver to recognize • Water standing on the roadway. How do you fix loss of traction? If You Lose Traction Gently reduce pressure on brakes – if on ice, push […]

What is meant by visual angle? Visual angle is the angle a viewed object subtends at the eye, usually stated in degrees of arc. It also is called the object’s angular size. The diagram on the right shows an observer’s eye looking at a frontal extent (the vertical arrow) that has a linear size , […]

How much more powerful is fusion than fission? Abundant energy: Fusing atoms together in a controlled way releases nearly four million times more energy than a chemical reaction such as the burning of coal, oil or gas and four times as much as nuclear fission reactions (at equal mass). Does Fusion produce more energy than […]

How many ohms does a 9-volt battery have? Batteries will always have some resistance. Though the internal resistance may be or appear low, around 0.1Ω for an AA alkaline battery, and about 1Ω to 2Ω for a 9-volt alkaline battery, it can cause a noticeable drop in output voltage if a low-resistance load is attached […]

How can a sinker be made to float? There are two possible ways to make that object float, however: Increase the density of the water so that the water becomes denser than the object. Increase the volume of the object so that the object becomes less dense than the water. Why do people float? As […]

Why do shoots grow up and roots grow down? Roots respond to gravity and shoots grow towards sunlight. Roots – Roots grow down because the root respond to gravity by releasing the chemicals that prevent growth on the lower side,thus turning the root downwards. Why do shoots grow away from gravity? The roots grown downward […]

What is definition of inertia? Inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose […]

Does cold weather affect radio signals? In conclusion, both temperature and humidity have an effect on the transmission of radio waves. Conclusion 1: The temperature is inversely proportional to the strength of radio waves, Conclusion 2: The relative humidity in the air is inversely proportional to the strength of radio waves. What is a safe […]