2. An object with a mass of 50 kg, located on top of a building 20 m high, is allowed to fall freely to the ground (Assume air resistance is negligible). a) How much is the kinetic and potential energy of the object before falling? b) Applying the First Law of Thermodynamics, how much are the potential and kinetic energy of the object at a position 5 m before touching the ground? c) How much are the kinetic and potential energy of the object upon touching the ground?

2. An object with a mass of 50 kg, located on top of a building 20 m high, is allowed to fall freely to the ground (Assume air resistance is negligible). a) How much is the kinetic and potential energy of the object before falling? b) Applying the First Law of Thermodynamics, how much are the potential and kinetic energy of the object at a position 5 m before touching the ground? c) How much are the kinetic and potential energy of the object upon touching the ground?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Suppose a hippopotamus on land receives 73 units of heat per minute due to solar radiation and 52 units of heat per minute due to infrared radiation. It emits 39 units of infrared radiation and it loses 66 units heat per minute through evaporation. The hippopotamus gains 45 units of heat per minute through its metabolism. Overall, its heat energy is increasing by 50 units per minute (i.e. its temperature is increasing). Delta Hanimal = SR + IRin - IRout ± Hconv ± Hcond - Hevap + Hmet Based on this information we can conclude that the combination of conduction and convection is the animal, and that its current temperature is than the ambient temperature. Select one: a. cooling; warmer b. warming; warmer c. cooling; cooler d. warming; cooler
The 1st law of thermodynamics is ΔU = Q –W. Use this statement of the 1st law to show (mathematically) its equivalent statement: “Total energy of the universe is constant”. Here, the universe can be defined as: system + surroundings (everything but the system –everything outside the system). (Hint: this can be shown by two ways-you may either treat system and surroundings as two systems next to each other, or you may treat system + surroundings (universe) as one system.)
16
THERMODYNAMICS UPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS LEGIBLY. SHOW THE STEP-BY-STEP PROCESS WITH SHORT COMMENT/EXPLANATION. ANSWER IN 3 DECIMAL PLACES. ANSWER #3 ONLY
I need the Equations for the nozzle of gas turbine engine of an airplane. (Balance of energy and mass) everything.
Q1: If a calorimeter is not assumed to be adiabatic, how would one calculate the heat transfer? Guide Questions: What are the parameters to be considered and the equations to be used? What law of thermodynamics does this transfer of heat to the surroundings touch? Is an adiabatic system automatically considered as a closed system? Please help me understand by also attaching a reference/book/journal article. This would help me in my essay. Thank you.
An open system is often referred to as control volume, which is a properly selected region in space in which mass and energy can flow across the boundaries as figure 1.2. The boundary of a open thermodynamic system is called the control surface Across the Boundaries E = Yes F 0 = Yes w =Yes Control surface ass YES W CONTROL VOLUME energy YES Figure 1.2. A cooling/heating radiator is an example of such a system – give two more examples of such a system.
1. The development of thermodynamics since the 17th century, which was pioneered by the invention of the steam engine in England, and was followed by thermodynamic scientists such as Willian Rankine, Rudolph Clausius, and Lord Kelvin in the 19th century. explain what the findings or theories of the 3 inventors are! Please answer fast max 25-30.minutes thank u
Submit correct and complete solutions. give propriate Explanation. Provide step-by-step detailed explanations.
Thermodynamics systems have been playing important roles in our life.Briefly explain one of the systems and the concepts of the system(type, properties, etc.)
THERMODYNAMICS: Mollier Diagram: Steam Table Using the Steam Table below, find Δhf and Δhg in BTU/lbm and Δsf and Δsg in kJ/kgm-K and for the following parameters: P1 = 9.5 kgf/cm2 P2 = 15 kgf/cm2 With step by step explanation pls NOTE: This table uses SI unit as stated below: Pressure: MPa Temperature: °C Internal Energy and Enthalpy: kJ/kgm Entropy: kJ/kgm-K
Select correct statements about the comparison between the science of heat transfer and the science of thermodynamics O We can use either one to calculate the time of cooling or heating processes One is about the non-equilibrium situation, and another one deals with equilibrium. O One is about the rate of heat transferred, and another one is about the amount of heat transferred O Time does not play any role in thermodynamics, but it does in heat transfer