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 happens if you go too deep underwater?
What happens if you go too deep underwater? As you descend, water pressure increases, and the volume of air in your body decreases. This can cause problems such as sinus pain or a ruptured eardrum. As you ascend, water pressure decreases, and the air in your lungs expands. This can make the air sacs in […]
What did it mean for the middle class in France explain?
What did it mean for the middle class in France explain? For the new middle classes liberalism stood for freedom for the individual and equality of all before the law. Politically, it emphasised the concept of government by consent. It stood for the end of autocracy and clerical privileges. What were the 3 main social […]
Can salt give you acid reflux?
Can salt give you acid reflux? Consuming table salt or salty foods may increase reflux, a risk factor for heartburn. For instance, one study found that people who added table salt to their meals had a 70% higher risk of reflux than people who never added salt. What is the strongest medicine for GERD? Prescription-strength […]
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 […]
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 […]
How far does the tip of the minute hand of a clock move in 20 minutes if the hand is 5 inches long?
Can airbags kill you?
Can airbags kill you? Not only can the airbag can seriously injure you, it can kill you. Second and third generation airbags, even though, they have been de-powered from the mid 1990’s, still deploy outward at 300 mph. A deploying airbag has the explosive equivalent of 20 shotgun shells. This can cause neck fractures and […]