Does sound travel faster in darkness? You may wonder, it is because it is quieter at night than in the daytime. Actually, sound transmits farther at night may be related to refraction of sound waves! First, sound is the vibration of air, and it is a kind of wave motion. The propagation of sound wave […]
Is lifting a pushing force?
Is lifting a pushing force? Manual work exists in nearly all industries and includes all forms of moving loads which is done using muscle force in whole or in part. This includes, for example, lifting, tipping, carrying, supporting, pulling, pushing, dragging, loading, shovelling and sorting. What height is pushing or pulling a load the safest? […]
What is Group 2 used for?
What is Group 2 used for? Group 2 compounds are often used to neutralise acidity. Calcium hydroxide, often known as slaked lime, is used in agriculture to neutralise acidic soil, and magnesium hydroxide is often used in indigestion tables to neutralise excess stomach acid. Is there a substitute for helium? Helium is commonly used as […]
What is the maximum efficiency?
What is the maximum efficiency? The maximum efficiency is the ratio of the temperature difference between the reservoirs and the temperature of the hot reservoir, expressed in the equation , where TC and TH are the absolute temperatures of the cold and hot reservoirs, respectively, and the efficiency. What is condition for maximum efficiency? Maximum […]
What color light does the sun emit?
What color light does the sun emit? white What type of light does the sun produce the most? ultraviolet rays What lumen is daylight? 120,000 lux At what particular place on Earth insolation is strongest and greatest? the equator Why are sunsets red? Within the visible range of light, red light waves are scattered the […]
Are two triangles congruent if all pairs of corresponding angles are congruent?
Are two triangles congruent if all pairs of corresponding angles are congruent? Definition: Triangles are congruent when all corresponding sides and interior angles are congruent. In the simple case below, the two triangles PQR and LMN are congruent because every corresponding side has the same length, and every corresponding angle has the same measure. … […]
What is the correct order of the Declaration of Independence?
What is the correct order of the Declaration of Independence? The Declaration of Independence is made up of five distinct parts: the introduction; the preamble; the body, which can be divided into two sections; and a conclusion. The introduction states that this document will “declare” the “causes” that have made it necessary for the American […]
Is 10 km more than 1000 cm?
Is 10 km more than 1000 cm? 10 km to cm conversion. A kilometer, or kilometre, is a unit of length equal to 1,000 meters, or about 0.621 miles. In most of the world, it is the most common unit for measuring distance between places….Convert 10 Kilometers to Centimeters. km cm 10.00 1,000,000 10.01 1,001,000 […]
How many FPS does an arrow to kill a deer?
What are the three major components of a typical overhead crane system?
What are the three major components of a typical overhead crane system? A Bridge Crane system consists of three major components: Bridge Crane: The bridge is built as a single or double, beam or box girder which traverses and down the runway. Hoist and Trolley: The hoist lifts your load up and down while it […]