Can kinetic energy negative?

Q: By passing thru a turbine radius of 50meters, the KE of the air is transformed to work. To produce…

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Q: What is Kinetic energy?

A: Kinetics energy is often studied in physics science and it is described as the kinetic energy of a…

Q: Give an example of Energy cannot be created or destroyed; it can only change forms?

A: The conservation of energy tells that energy cannot be generated or destroyed. but it can be said…

Q: What is the internal energy of the system and how can it be changed?

A: Explanation  Internal Energy : Internal energy of the system is the total energy contained within…

Q: A RDN B 1. Rank the three systems according to the absolute value of the net work by external…

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Q: A body (150 kg) moves with a 40 m/sec, the kinetic energy equals to 120 kJ *True or False???

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Q: B-A flywheel is used to give up 18 kJ of energy in reducing its speed from 100 rpm to 96 rpm.…

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Q: If a basketball with 0.65 kg mass free falls from 3,5 m height and bounces back to 2,15 m from…

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Q: A gasoline engine does 4000 Joules of work during 1 second of oper

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Q: Explain the forms of energy with basic principle and examples.

A: Energy  - In layman's language " The capacity to do work is called energy". It is quantitative…

Q: When you open the lid of a spin dryer, a retarding torque of 12.5 N.m stops the dryer after 8 rev.…

A: Given data: The retarding torque on the torque is T=12.5 Nm The number of revolution of the dryer is…

Q: C. Find the change in internal energy of the cell during the period of operation. [Ar

A: To find :-  Internal energy change

Q: Explain the wind turbine its part and function of each parts, how it will convert energy?

A: I have mentioned the part names and pics with the help of Power point (for the better understanding…

Q: Explain Energy with examples ?

A: Energy can be defined as the ability to cause the change.

Q: How can we use a spring to determine an unknown mass?

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Q: Which of the following is not a pure substance.

A: Pure substance is a substance that is made of the single type of particles.

Q: The quality of water is decreased from 100% (saturated vapor) to 50%. Which one of these will not be…

A: when water qualitu decreases from saturated vapor to towards saturated liquid, then its a phase…

Q: If the Power Coefficient wind energy system is 25 % then turbine power output will be quarter of…

A: If the Power Coefficient wind energy system is 25 % then turbine power output will be,

Q: n wall then the work done by force on wall

A: given: when  a force is applied on wall then the work done by force on wall is?

Q: Ex.6.12 Through what distance will body A move to in changing its velocity from 6 fps to 12 fps?…

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Q: Define Renewable energies such as wind are called “green energy” since they emit no pollutants or…

A: Renewable energy: Renewable energy is the energy produced from renewable sources such as Sun, Wind,…

Q: d. Which one most contributing for storing and giving back the energy,

A: Answer: flywheel.

Q: Define Gravitational Potential Energy

A: The amount of energy that is stored in the object or the energy possessed by the object due to the…

Q: If energy cannot be lost why does a ball stop move

A: If energy cannot be lost why does a ball stop move

Q: Briefly explain the Physical Insight to Internal Energy?

A: Internal Energy:  It is the total energy contained in a system. It is an extensive property. The…

Q: What does third kepler's law states?

A: Kepler has given three laws governing the planetary motion. The first law is known as the law of…

Q: Discuss the energy systems working from rest to completion of 400 meter track anf field event.

A: The most common energy method employed by elite athletes in a 400 m race is anaerobic glycolysis.…

Q: Explain the definition of power (Watt) and energy (Joule) in electricity.

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Q: How much thrust produces JF-17 Thunder and F-16 Jet Fighters?

A: Thrust produced by JF-17 Thunder is 80 to 86.36 kN with afterburner and 50 kN without afterburner.

Q: Define Potential energy.

A: Let's say a man of mass 'M' is at a height 'H' from the ground level and he's stationary. So, the…

Q: When calculating work done by forces, the work of an internal force does not have to be considered…

A: In order to move a body through a certain distance, some amount of energy is required. This energy…

Q: When heat energy transfers through a solid, what is it called?

A: Convection : This is a kind of heat transfer through fluid (liquids or gases) due to movement of…

Q: form of energy which is contained in (possessed by) a body

A: Potential energy

Q: Why is the work done by spring force negative?

A: The spring force on the body can be expressed as, F=-kx Where k is the spring constant and x is the…

Q: What is zero velocity?

A: Zero Velocity: If an object having zero velocity, it means the object is stationary at any location.…

Q: maximum possible efficiency for the power

A: Given: T1= 350 F T2=60 F To determine the maximum efficiency

Q: 6. If a small motor does 520. J of work to move a toy car 260. m, what force does it exert?

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Q: Heat can be transferred in three different ways

A: Heat can be transferred in three different ways  (1) Conduction (2) Convection (3) Radiation

Q: Which of the following statement(s) is(are) correct? Thermal energy with some effort, can only be…

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Q: Write the SI units of kinetic energy.

A: Write the expression of the kinetic energy as follows: KE=12mv2 Here, m is the mass, and v is the…

Q: Discuss with the help of an examplehow is a flywheel able to store energy. Also, compare solid and…

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Q: Which one of these is not extensive property?       A)Enthalpy       B)Potential energy       C)Mass…

A: Extensive property:     The properties which are dependent on mass are called extensive properties.

Q: the winds and waves, the disciples can row the boat on still water at 9 m/s, the sea and wind has a…

A: Let Jesus moves at an angle θ , and he meets its disciples in 't' time. Distance travelled by Jesus…

Q: A 2.5 N weight has a kinetic energy 1.75 J. Determine its velocity in kph.

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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.