What is resultant force example? Translation: When a system of forces is acting on an object, the difference between the forces is called the Resultant force. For example, a 3N force to the left and 10N force to the right gives a resultant force of 7N to the right. How do you solve resultant force […]
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What is thermal equilibrium in simple words?
What is thermal equilibrium in simple words? Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. A system is said to be in thermal equilibrium with itself if the temperature within the system is spatially uniform […]
What are some practical applications of waves?
What are some practical applications of waves? Behaviour and uses of electromagnetic waves Radio waves. Radio waves are used for communication such as television and radio. Microwaves. Microwaves are used for cooking food and for satellite communications. Infrared. Visible light. Ultraviolet radiation. Do TV use radio waves? Television. Television broadcasts also use radio waves (see […]
What is the frequency of SHM?
What is the frequency of SHM? Simple harmonic motion is repetitive. The period T is the time it takes the object to complete one oscillation and return to the starting position. The frequency f = 1/T = ω/2π of the motion gives the number of complete oscillations per unit time. It is measured in units […]
Why Pacific Ocean is contracting?
Why Pacific Ocean is contracting? The Pacific tectonic plate is not as rigid as scientists believe, according to new calculations. Scientists have determined that cooling of the lithosphere — the outermost layer of Earth — makes some sections of the Pacific plate contract horizontally at faster rates than others and cause the plate to deform. […]
Does water cause erosion?
Does water cause erosion? Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment. Rainfall produces four types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion. What are the 3 types […]
What determines the shape of a blood drop?
What determines the shape of a blood drop? The direction of blood droplets can be determined from the shape that it forms when they hit the flat surface. The tail of the elongated drop points to the travel direction. blood droplet that looks like this may have been caused by a blunt object and is […]
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Which blood vessels are very strong and elastic?
Which blood vessels are very strong and elastic? Arteries and arterioles The arteries, which are strong, flexible, and resilient, carry blood away from the heart and bear the highest blood pressures. Because arteries are elastic, they narrow (recoil) passively when the heart is relaxing between beats and thus help maintain blood pressure. Which blood vessels […]