Does a single pulley reduce weight? One wheel. If you have a single wheel and a rope, a pulley helps you reverse the direction of your lifting force. So, as in the picture below, you pull the rope down to lift the weight up. If you want to lift something that weighs 100kg, you have […]
What are the 4 steps of the phosphorus cycle?
What are the 4 steps of the phosphorus cycle? Weathering. Phosphorus is found in the rocks in abundance. Absorption by Plants. The phosphate salts dissolved in water are absorbed by the plants. Absorption by Animals. The animals absorb phosphorus from the plants or by consuming plant-eating animals. Return of Phosphorus Back to the Ecosystem. What […]
How is the motion of the object affected by the horizontal and vertical components of its velocity and or acceleration?
How is the motion of the object affected by the horizontal and vertical components of its velocity and or acceleration? The horizontal motion of an object is unaffected by the force of gravity for relatively short displacements. This means that the horizontal velocity is constant, while the vertical velocity is accelerating. This change in angle […]
What tool do you use to tighten nuts?
What tool do you use to tighten nuts? Spanners What happens if a bolt is over tightened? Everyone who has ever worked with fasteners has accidentally messed one up at some point. One of the most damaging ways to do that is by over-tightening, or over torquing the fastener. This can result in stripping screws, […]
What liquids expand freezing?
What liquids expand freezing? Expansion. Some substances, such as water and bismuth, expand when frozen. Does ice expand contract? When you heat ice, the molecules gain kinetic energy, and the ice expands until it melts. But once all the ice has turned to water and the temperature starts rising again, expansion stops. Between 32 and […]
What organs work together so we can breathe?
What organs work together so we can breathe? The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean […]
How many minutes does it take light from the sun to reach the earth which is 1.5 x 1011 m away the speed of light is 3.0 x 108 m s?
Which best explain the separation of color of white light?
Which best explain the separation of color of white light? White light separates its color when it passes through a transparent. medium. When light passes through a triangular prism, its color separates. because of their different refractive indices. What is the spectrum of white light? The spectrum of white light consists of six basic colours […]
Why does a single slit cause diffraction?
Why does a single slit cause diffraction? Interference and Diffraction are the phenomena that distinguish waves from particles: waves interfere and diffract, particles do not. Light bends around obstacles like waves do, and it is this bending which causes the single slit diffraction pattern. The slit size is small, relative to the wavelength of light. […]
Why is it called a Frisbee?
Why is it called a Frisbee? Frisbee’s name is a spin-off from a defunct Connecticut bakery, Frisbie Pie Co. New England college students often tossed empty pie tins around for fun, a habit that led them to refer to the Pluto Platter as a “frisbie.” Which Frisbee goes the farthest? If you love tossing a […]