What is the average force on the ball? Using Newton’s second law we can estimate the average force acting on the ball during the hit: Plugging in the numbers we find the average force to be Favg=18,436 N, which is equivalent to 4124 lbs of force. How much force did the racket exert on the […]
What is the fundamental question of philosophy?
What is the fundamental question of philosophy? The basic question of philosophy is the question about the relationship of thought to being. What is a question in philosophy? The result is a definition of philosophical questions as questions whose answers are in principle open to informed, rational, and honest disagreement, ultimate but not absolute, closed […]
What is the perimeter of a sector?
What does a plastic stopper reduce?
What does a plastic stopper reduce? The vacuum prevents conduction. The tight stopper prevents air from entering or leaving the flask, so convection isn’t possible either. The sealed stopper stops heat getting in by convection; the vacuum stops conduction, and the metal lining between the outer case and the inner chamber stops heat radiating in […]
What are the two main types of steam turbines?
What are the two main types of steam turbines? Two types of steam turbines must be considered, condensing and noncondensing. What is the principle of steam turbine? In simple terms, a steam turbine works by using a heat source (gas, coal, nuclear, solar) to heat water to extremely high temperatures until it is converted into […]
What is wave interference and what two types are there?
What is wave interference and what two types are there? There are two types of interference: constructive and destructive. Constructive interference occurs when the wave amplitudes reinforce each other, building a wave of even greater amplitude. Destructive interference occurs when the wave amplitudes oppose each other, resulting in waves of reduced amplitude. What are sources […]
How does friction affect total mechanical energy?
How does friction affect total mechanical energy? Mechanical energy is reduced due to friction and converted to heat. This is the reason why there is an increase in temperature in objects that move against each other. The role of friction in a closed system is to convert a part of the total energy to heat. […]
Is pumice toxic?
Is pumice toxic? Pumice is an excellent filler. It is non-crystalline by nature, non-toxic and non-hazardous. What can I do with leftover lava rocks? 4 Uses for Lava Rock BBQ. Lave rock is used in gas barbecues. Landscape. Lava rock can make effective landscaping in a flower bed or border. Aquarium. Lave rock is often […]
Why is the tundra worth saving?
Why is the tundra worth saving? Why is the Tundra important to protect? The tundra is important to protect because it acts as a carbon sink by absorbing carbon dioxide from the environment and helping to counteract the detrimental effects of carbon emissions. Where are tundras found? The tundra is a treeless polar desert found […]