Which situation is work not done? When the force makes an angle with the direction of force the component of force along the direction of displacement is taken. If the force is perpendicular to the direction of displacement, work done is zero. When the displacement opposite to the direction of force, work is negative. Is […]
What is the meaning of measurements?
What is the meaning of measurements? In the classical definition, which is standard throughout the physical sciences, measurement is the determination or estimation of ratios of quantities. Quantity and measurement are mutually defined: quantitative attributes are those possible to measure, at least in principle. What word is this measure? noun. a unit or standard of […]
What will happen when the price of a good drops?
What will happen when the price of a good drops? Under the substitution effect, what will happen when the price of a good drops? The consumption of the first good increases and the consumption of other goods decreases. With a drop in price of the first good, consumers may now substitute the first good for […]
Which is the oldest additive manufacturing techniques?
Which is the oldest additive manufacturing techniques? Additive manufacturing first emerged in 1987 with stereolithography (SL) from 3D Systems, a process that solidifies thin layers of ultraviolet (UV) light‐sensitive liquid polymer using a laser. The SLA‐1, the first commercially available AM system in the world, was the precursor of the once popular SLA 250 machine. […]
What kind of lens do I need?
What happens when a bowling ball hits pins?
What happens when a bowling ball hits pins? Once the bowling ball hits some pins, it sends those pins into more pins, those pins into more pins, and so on. Each interaction between two or more pins and/or the ball is an elastic collision. The pins bounce against one another because their momentum is conserved […]
Does Sulphur burn in air?
Does Sulphur burn in air? Answer: Sulphur when burnt in air forms SO2. Sulphur reacts with oxygen as it burns in the presence of oxygen, producing Sulphur dioxide, which is acidic in nature. What happens when Sulphur reacts with oxygen Class 8? sulfur + oxygen → Sulfur burns in oxygen to form sulfur dioxide. Is […]
Which is good effect of friction?
Which is good effect of friction? Advantages of Friction: Friction is responsible for many types of motion. It helps us walk on the ground. Brakes in a car make use of friction to stop the car. Asteroids are burnt in the atmosphere before reaching Earth due to friction. What happens when friction increases? Friction causes […]
What is Eon in time?
What is Eon in time? Eon, Long span of geologic time. In formal usage, eons are the longest portions of geologic time (eras are the second-longest). Three eons are recognized: the Phanerozoic Eon (dating from the present back to the beginning of the Cambrian Period), the Proterozoic Eon, and the Archean Eon. How do I […]
What does the fine adjustment knob move?
What does the fine adjustment knob move? It moves the eyepiece up and down quickly, to get the thingy you’re trying to look at roughly (or, ahem, “coarsely”), in focus. Then you use the fine adjustment knob to get the focus perfect. It is usually the larger knob on the side of the microscope, and […]