Have you ever wondered what would happen if a penny was to fall off the top of the Empire State Building and hit someone on their head? It seems that this occurrence may be deadly. Infact , there are many who believes that at a fall from that high an altitude, 1,259 feet (381 meters) not including the antenna spire, a penny has the ability to cause a serious injury or even kill pedestrian down below. Well in order to cause such damages, this would be the case if the penny was in free fall. Yet this is not true because factors such as air resistance play a significant role in restricting the penny's acceleration. Therefore, due to air resistance, friction in the air, a falling penny on Earth can not truly free fall. Free fall is defined as the …show more content…
The pennies, however, would be slowed down by air resistance and would not gain any more speed. For example, in a significant article regarding how pennies fall, it states, “The pennies ‘reach terminal velocity and no matter how high we put the balloon, they never picked up any more speed’” (Stossel, Binkley 2). This was derived from a test where pennies were dropped by a balloon from hundreds of feet high and proved that no matter where the balloon was, the pennies didn’t pick up any more speed. Terminal velocity is the maximum speed a falling object reaches and is determined by the object's weight and air resistance (Stossel, Binkley 2). As a result, a penny is never truly in freefall since air resistance is working against the force of gravity and for an object to free fall, acceleration of gravity, is the sole factor that should be acting on the object. In this case, it's a penny. Another example in the text states, “Even though we didn’t go as high as the Empire State Building, it doesn’t matter. The penny will hit full speed after 50 feet or so, and it just coasts” (Stossel, Binkley 2). This shows that even at the highest altitude, a the penny will fall to the ground with a slow terminal velocity. A penny that is dropped from the Empire State Building can not, therefore, be a deadly …show more content…
These factors include the size and shape of the object. For example, the shape and size of paper of a rock differs from that of paper. But paper, because of it shape and size, would float down slower with more air resistance than the rock which has less air resistance. For example, in a well known article on the fall of an object, states, “More massive objects will only fall faster if there is an appreciable amount of air resistance present” (The Big Misconception 1). This shows the fall of an object does not care about mass but size and shape. An object on earth can not truly free-fall on earth because air resistance can amongst all objects no matter how miniscule and if there is friction pushing a body or an object the opposite direction than the downward acceleration due to gravity, then it can not be free, not under the control of another, falling. Therefore, the size and shape can also be factors affect how an object falls which on Earth, can not truly
Next, we determined the mass of the penny by placing it on a balance. The mass of the penny was 2.47 grams. Afterwards, we placed the penny in a beaker filled with 20 mL of 6 M HCl. In the end we put the beaker in the fume hood and allowed it to sit overnight. During day two of the penny lab, we removed the penny skin from the beaker using tweezers.
As stated in the text,”In truth, it is more than a coin—it is a piece of American culture.” Even though the penny has some culture, culture is nothing compared to losing money the losing money part is way more important than just being part of American culture. This shows how people can hold onto the smallest things for the dumbest reasons. Another thing stated in the text was,”Still, for many people, the penny's sentimental value remains the same.” Even though the penny may have some sentimental value the government is losing a ton of money minting new pennies because they cost more than they have in value.
In this week’s lab we had to determine the density of a quarter, penny, and dime. My question was “How does is each coin?” Density is the amount of mass in an object. To find the density of each coin in this lab, we used a triple beam balance to find each coin’s mass and a graduated cylinder to find their volumes. With all this information, I can now form a hypothesis.
The complete waste of time and money spent producing these pennies just to be forgotten in the couch cushions is astounding. If every penny is 1.8 cents to produce than the government is giving away 800 million USD every single year. The same article says, “...10 million new useless items punched out by government workers who could be more usefully employed tracking counterfeiters.” In other words, the government isn’t only wasting money on penny production but, also a working staff. U.S. currency could be more protected if it wasn’t for the pesky penny.
The density of the penny was 4.68 g/cm3 before the experiment and 4.43 g/cm3 at the end of the experiment. The density of gold, though, is 19.3 g/cm3. Since the densities of the penny and the gold are different, the penny clearly did not change into another element. The gold color of the penny was a result of the flame that it was held above melting the zinc that it was coated in with the original bronze colored coating of the penny, creating an alloy with a shiny yellow color. Since neither of the pennies, silver colored or gold, changed densities throughout the experiment and each retained their own properties; the properties of copper; no new elements were
When a parachute has a larger surface area, it will cause more air molecules to be moved, thus, leading to it having more drag. The more the drag, the slower the parachute will fall to the Earth. The air which causes this, also pushes the parachute back up. This causes the creation of a force that does the opposite of what gravity does. As the parachute falls, these two forces are almost in perfect balance, the drag force that comes from the parachute is slightly less than the force of gravity, this lets the parachute fall safely do the ground.
Off with the Head The penny is one of America 's most iconic coins, but yet people toss them once in their possession. Most thoughts about the penny are more negative than positive. Lewis, Mark’s passage (Source A) shows the reason is has not been banned yet. Kahn, Ric’s passage (Source B) explains the penny was only good in its prime, and now is wasting our time.
That is why I am supporting the retirement of the pennies. With me supporting the retirement of the penny I have some evidence on why the penny should be retired. One piece I have is in the article it states that it costs 11 million dollars to make pennies in other countries. That it is a lot of money being used even though the penny doesn’t really get used, it just gets pushed to the side and never gets used. They could be doing more with the 11 million dollars.
That just shows how I'm right about getting rid of the coin. I know taxpayers don't don't want to keep wasting their money on the penny. Pennies serve in today's
On our paper we predicted the amount of pennies that could fit in the boat before it sank. We tested the boat in the water and added pennies one by one. We then calculated the mass of pennies that fit in the boat and the density of it. The purpose of this Lab was to make a boat that holds as many pennies as possible and understand how to calculate
In an article arguing against the penny from the New York Times, William Safire states, “Two-thirds of them [pennies] immediately drop out of circulations, into piggy banks or – as The Time’s John Tierney noted five years ago – behind chair cushions or at the back of sock drawers next to your old tin-foil ball.” This number may be an exaggeration, but it proves the point. Pennies are not used anymore; they instead get saved or lost throughout people’s homes. Other countries have also dropped the penny, including Canada, Australia and New Zealand (“Elimination”). Like so many of us in America, these countries see the harm in the one cent, and are doing well without it.
As the marble slides down the first drop it will lose much of its potential energy corresponding to the loss of height. The marble subsequently gains kinetic energy – kinetic energy is contingent to the mass and the velocity of an object. The marble speeds up as it loses height, consequently, their potential energy is transformed into kinetic energy. Newton’s Second Law states that an object’s net external force is equal to its mass times its acceleration; simply, the acceleration is proportional to the force applied and also the mass of the object.
The size of the Earth directly affects its gravity. What other things do you think might affect gravity? Theoretically space stations can spun in space to create a constant gravity. Everyday life would be much harder without gravity. Gravity keeps us on the ground so, if we lost gravity we would most likely float into the abyss of space.
The gravity also depends on the mass of the earth because when the apple accelerates downward, there is an opposite upward acceleration from the earth (Newton’s third
How Gravity Works Gravity pulls objects down towards the ground due to the force of attraction that the earth has, and the way it works on different places or different planets. To start it off, gravity is able to keep objects from floating out into space and down towards the ground because of the gravitational pull that surrounds the world. The reason that gravity works like that is because it is around the world and it has a stronger pull than the gravity on other planets, that's why it seems like there is no gravity on other planets. The gravitational pull is something that covers the world and keeps objects from floating out into space. The gravitational pull provides gravity to keep mass, and matter from going out into space and floating