Video Transcript
the question is what is energy? What is work and list some examples of each. So, first of all, energy is defined as the capacity to do work for produce meat and that can be found on Page thirteen and page three sixty eight. Some examples of energy include Connectix Energy, which is the energy of motion X. It can also be found on page three sixty eight. Another example would include potential energy, which is the energy do you teo position. This can also be found on page three sixty eight. There's also thermal energy, which is the energy associative where temperature on all of these sixty eight and the last example I have is chemical energy And what I'm just going Teo, read this one off. I'll put some bullets here. It's ah, pretty long definition. So this is the energy associative with the relative positions that's important of the electrons and the nuclei and atoms and molecules. Okay, all right. And the second part of the question access what is work and toe? Listen examples of that So work is defined as, of course, acting well over a distance you can't. I also found on page three sixty eight. And some examples of that are pushing a box across the floor. We push of box across the floor, you are doing work, you're providing the force, and it's moving across. The floor's moving over a distance. Um, another example is one of books. What falls off of the table s o the force. There would be gravity. Um, some more example. The distance would be the distance that it falls. Some more examples, etc. Lifting a sock off of the floor. Yeah, that's a that's force over distance that's doing work anytime you have a force acting over a distance some more so So far, these have all been examples of mechanical work. This is national, just been introduced yet, So these are all examples of mechanical work. But there's another type of work which we call PV work. So that's pressure volume work. So this is still work. So these air still examples. Another example would be if you inflated a balloon or every time you pedal your bike down the street over distance. So these are some examples of pressure volume or PV work. Both of them are work, but they're just different types. Um one of these. I know. I found Okay, Page fifteen. You can find that one, if you like. Some background reading and back includes question to you.
The Elements of Life
In biology, the elements of life are the essential building blocks that make up living things. They are carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. The first four of these are the most important, as they are used to construct the molecules that are necessary to make up living cells. These elements form the basic building blocks of the major macromolecules of life, including carbohydrates, lipids, nucleic acids and proteins. Carbon is an important element for all living organisms, as it is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. Even the cell membranes are made of proteins. Carbon is also used to construct the energy-rich molecules adenosine triphosphate (ATP) and guanosine triphosphate (GTP). Hydrogen is used to construct the molecules water and organic compounds with carbon. Hydrogen is also used to construct ATP and GTP. Nitrogen is used to construct the basic building blocks of life, such as amino acids, nucleic acids, and proteins. It is also used to construct ATP and GTP. Oxygen is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. It is also used to construct ATP and GTP. Phosphorus is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids.
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Transcribed Image Text:Which of the following statements best describes "energy" as defined in physics? a) Energy is the capacity to do work. b) Energy is the rate at which work is performed. c) Energy is the power delivered to an object. d) Energy is the force applied to an object.
Q: What is energy? Explain why scientists care about this concept as part of their work.
A: Energy is the capacity to do work. More the energy, more is the capacity to do work.
Q: What is energy? Explain why scientists care about this concept as part of their work.
A: Click to see the answer
Q: True or false, Kinetic energy is the quantity that measures the amount of work that goes into the…
A: Let, the work-done be denoted as 'W' , initial kinetic energy of the object be denoted as 'Ki' ,…
Q: During a tug-of-war, team A pulls on team B by applying a force of 1,457 N to the rope between them.…
A: Given in question - Force applied (F) = 1457 N Distance travelled (D) =…
Q: The work W required to lift an object varies jointly with the object’s mass m and theheight h that…
A: (a) Given the mass of the object is m and the height by which the object is lifted is h. The work…
Q: A 200 kg boulder is sitting on top of a 10 m high hill.what is the boulder's gravitational potential…
A: Formula of gravitational potential energy is, E=mgh Given : Mass m=200kg Height h=10m Acceleration…
Q: What is the kinetic energy of a 15 g mass moving at 127 m/s
A: Click to see the answer
Q: what is the kinetic energy of a 2000kg car traveling at 25 m/s
A: Kinetic Energy is energy that is due to motion. Its unit is Joule 'J'. Formula: KE=12mv2 Given:…
Q: Kinetic Energy is: KE= mv², where KE and v =velocity. What is the kinetic energy of a 1,093 kg car…
A: Click to see the answer
Q: The kinetic energy of a particle of mass 0.200 kg is 320 J. Its momentum, in kg m/s, is (use one…
A: Answer:- Given Mass of a particle (m) = 0.200 kg Kinetic energy of a particle (K.E) = 320 J We…
Q: A softball with a mass of 0.18 kg is moving at a speed of 45 m/s. What is the softball's kinetic…
A: The expression for the kinetic energy of the ball is, KE=12mv2
Q: What is the kinetic energy of a mass of 4 KG moving with velocity 8 m/sec
A: Click to see the answer
Q: a baseball with a mass of 0.15 kg is moving at a speed of 40.0 m/s. what is the baseball's kinetic…
A: Click to see the answer
Q: what is the kinetic energy of a car with the mass of 1,736 kg if its traveling at 7.26 m/s? answer…
A: Click to see the answer
Q: what is the kinetic energy of a car with the mass of 1,736 kg if its traveling at 7.26 m/s? answer…
A: Given Mass of car m=1736kg Speed v=7.26m/s
Q: If it takes total work W to give an object a speed v and kinetic energy K, starting from rest, what…
A: Given, Work done for 1st scenario, W, KE for 1st scenario, K, and velocity for 1st scenario, v. Work…
Q: A microwave oven has a power requirement of 1,244W. A frozen dinner requires 5.8 minute to heat on…
A: Click to see the answer
Q: 6. What is the Kinetic Energy from the motion of a 0.06-kg tennis ball traveling at a speed of 50…
A: Given data The mass of the tennis ball is m = 0.06 kg. The velocity of the ball is v = 50 m/s. The…
Q: Which of the following five quantities is NOT an expression for energy? Here m is a mass, g is the…
A: Energy is defined as the ability of doing work. Various forms of energy are : Kinetic energy,…
Q: 1 Newton of force is applied to a stone to move 100 cm. Calculate the work done.
A: Given, Force = 1 N Displacement = 100 cm = 1 m Work done = ?
Q: Work is the product of the distance an object moves and the force that causes this movement. In the…
A: We know that , work is the amount of energy transfered .So , Work =Force x Distance J…
Q: 1. Calculate the potential energy of a rock with a mass of 5 kg while sitting on a cliff that is 30…
A: Click to see the answer
Q: 2. What is the moving kinetie energy of a 1500kg car moving at 25m/s 3. What is the kinetie energy…
A: If an object has mass 'm' and speed 'v' then the kinetic energy of the object is E=12mv2
Q: Mass (m): Mechanical Energy (ME) = 1,000,000 J PE = 998,791 J h: v = 1.5 m/s KE: v: 55m v = 31.28…
A: At stage 1: PE = 998791 KE = Total mechanical energy - PE KE = 1209 J KE = 12mv2 = 1209 m=1074.67…
Q: How much work is done
A: we know work done W = F·d=Fd cosθ where F is the amount of force d is the distance moved θ=angle…
Q: An object has a kinetic energy of 89.96 J and a mass of 59.76 kg, how fast is the object moving? No…
A: Given : K = 89.96 J m = 59.76 kg
Q: Calculate the energy used per day (kWh) of a car with an efficiency of 14 kilometers per liter and…
A: Click to see the answer
Q: What is the relationship between potential energy, kinetic energy and mass
A: To relate potential energy , kinetic and mass.
Q: Suppose it takes 5 ft-lb of work to compress a spring from its natural length of 4 ft to a length of…
A: As per Hooke's law when an ideal spring is compressed then force proportional to the decrease in…
Q: how much work is done when a 5kg object is lifted vertically a distance of 3 m
A: Given; The mass of the object is 5kg m=5kg It is lifted to a height of 3 m vertically Upwards To…
Q: What is the SI unit for 1. gravitational potential energy 2. kinetic energy 3. force 4.…
A: Objective: Find the SI units of the given quantities: 1. gravitational potential energy2. kinetic…
Q: A man can do a certain task in 21 hours, another man can do the task in 28 hours and a boy can do…
A: The work done by all three in one hour is found as,
Q: A spring has a natural length of 18 inches and a force of 20 lbs is required to stretch and hold the…
A: Click to see the answer
Q: Power refers to how fast work is done upon an object.
A: Power for a force is defined as Rate of doing work P=W/t
Q: A truck pulls a sled loaded with different kinds of vegetables at a certain distance. Suppose the…
A: Click to see the answer
Q: The potential energy of a 40-kg cannon ball is 14000J. How high was the cannon ball to have this…
A: Given data: Mass of the ball (m) = 40 kg Potential energy of the ball (PE) = 14000 J Need to…
Q: Which of the following is the correct combination of dimensions for energy?
A: Click to see the answer
Q: Which of the following pair do not have same dimensional formula? Select one: O a. Work & Energy O…
A: Click to see the answer
Q: A ball of mass 7.42 kg moving with speed 9.54 m/s hits a wall and bounces back with speed 5.77 m/s…
A: Given Data:- The mass of the ball is m = 7.42 kg The initial speed of the ball is vi = 9.54 m/s The…
Q: 5 joules of work is needed to stretch a spring from its natural length of 30 cm to a length of 44…
A: Write the expression for the work-done to stretch the spring from 30 cm to 44 cm, and solve the…
Q: A horsé pulls a wagon with a force of 1450 Newtons. How many meters did the wagon travel if the…
A: Given :- F= 1450 N power = 789 watts t= 3.5 min = 210 sec
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