Chose the correct answer: 2. To use the principle of transmissibility, the bodies are considered: a) They must have mass b) They must have absorption capacity c) They must be rigid d) All of the above e) None of the abov

Q: When heat energy transfers through a liquid or gas, what is it called? Select one: a. Conduction b.…

A: Convection is the method of heat exchange by the bulk development of particles inside liquids…

Q: Why the energy that we feel from the sun is mostly radiation?         A) It depends on the distance…

A: The mode of heat transfer from the sun to earth is by radiation only.

Q: 100 b B 100 b 6' 2' 150

A: given:

Q: (12) What is the value of F? (A) 7.53 N; (B) 8.03 N; (C) 8.53 N; (D) 9.03 N; (E) 9.53 N.

A: 12. According to the given data, Pressure is similar for both cylinders. Therefore,

Q: Determine in [kg / m3] the density of gold (FCC) that has an atomic radius R = 0.1242 nm

A: Consider or take value of automic mass for gold is 197 u. Avagadros no.( NO) 6.022*1023 mol-1

Q: A man of weight 500 N is standing on the top of a building of height 10 m, the energy possessed by…

A:

Q: Two infinite black plates at 500°C and 100°C exchange heat by radiation. If another perfectly black…

A:

Q: 5- If we want to reduce the illumination to half we must do the below: a-rotate the angle of light…

A: Given questions: 5. If we want to reduce the illumination to half we must do the below:a - rotate…

Q: What evidence demonstrates that the universe is expanding

A: The more distant away a universe is the quicker it is moving absent from us. This fits in…

Q: Show that the critical radius of a sphere is r. 2k ins.

A: According to the details provided in the question, we need to calculate the critical radius of a…

Q: Determine th C = 210 N/m D = 112 N/m

A: GIVEN:

Q: Find RA a=5 m b=6 m W=10 N A RA 2 W C b B Ra

A: Given data : a=5 m b=6 m W=10 N   We have to compute the value of Support reaction at A

Q: The unit of Plank's Constant is O Joule/ Sec O Joule O Joule Sec O Sec/ Joule

A: option (c)  joule sec

Q: Which of the following majorly affects the phenomenon of concentrating sunlight? OPTIONS: 1.All…

A:

Q: 1. Which material is a better conductor of electricity? (a) Metals (b) Ceramics (c) Polymers (d)…

A:

Q: Soalan 2] (a)The maximum blood pressure in the upper arm of a healthy person is about 120 mm Hg Chs=…

A: Given data Maximum blood pressure of health person (h1) = 120 mm Hg Density of blood (db) = 1050…

Q: A properly working solar dish must have value of concentration ratio О а. None of these O b. less…

A: Concentration ratio is more then 1

Q: A spherical gas tank with radius 0.4 m, is evacuated and then filled with oxygen gas at 25°C. To…

A: Option a is correct.

Q: A man of weight 600 N is standing on the top of a building of height 10 m, the energy possessed by…

A: Given data: Weight (w) = 600 N Height (h) = 10 m Need to determine the energy possessed by the man.

Q: The energy received by a 2 x2 m solar collector whose normal is inclined at 45°to the sun. The…

A:

Q: ) The primary benefit of the Zeroth Law of Thermodynamics is that it allows us to disregard the…

A: The given statement is false.

Q: b) Point X above the surface of the earth has a gravitational potential of -54 MJ while another…

A: i) Gravitational potential energy is the energy put away in an object as the result of its…

Q: POWER The moment that a motor can output is given as a function of its shaft speed by the = 60 –…

A: Given: The moment equation is, M=60-0.24ω.

Q: Find the coefficient of volume expansion of argon at 150 C? 2 points   a)1 b)0.0023 c)0.0077…

A: Given Data : Argon Temperature (T)=1500C Temperature (T)=150+273=423 K

Q: Material A and material B was exposed to the same change in temperature, but the heat involved with…

A:

Q: The rate of radiation heat transfer per unit area from a black surface is directly proportional to…

A: This question is based on the concept of heat transfer.

Q: Pots and pans used on solar cookers should be painted black in color to and converts the ligh energy…

A: Option (c) is correct.  Pots and pans used in solar cooker should be painted black in color to…

Q: ne power output i W

A: W= 4647.577kW

Q: metal object at 120 ° F is set on an insulating pad to cool. The temperature falls from 120 °  F to…

A:

Q: Which of the following propositions is tautology? Select one: O a. (p v q)-q O b. p v (p-q) O c.pv…

A: Let us draw the truth table for all the options  1st option  (p v q) --> q P q pvq…

Q: Q2:- Light from the sun arrives at the earth, an average of 1.48 x 101 m away, at the rate of 1.4…

A: Given Data frequency, v=4.95*1014 Hz Energy, E=1400 W/m2. Energy =hv =…

Q: How did Galileo’s invention of the telescope support Copernican theory?

A: Galileo is a scientist as well as astronomer. He did the invention of telescope. He use his new…

Q: A man of weight 600 N is standing on the top of a building of height 10 m, the energy possessed by…

A:

Q: solid block having the same horizontal cross-section when immersed in water leaves 20 cm height…

A:

Q: Energy: 1. What is the Law of Conservation of Energy? 2. What is the Law of Conservation of Matter?…

A: Law of Conservation is an important concept in physics and engineering. Based on this law, each and…

Q: is the universal constant for the Newton's universal law of gravitation.

A: Ans-d

Q: Explorer V had copper antennas that were each 25 cm long. If they changed in temperature from 0°C to…

A: Given: Length the antenna=25cm long Change in temperature (ΔT)= -35°C  (-ve because temperature is…

Q: A sphere made of an unknown metal of diameter 90cm at temp T1 kelvin radiates a certain amount of…

A: Given: Initial temperature=T1 Final temperature=T2 Diameter of the sphere=90cm

Q: 600 N 60° 60 cm B 40 cm D A 60° E

A:

Q: g differential equation

A: Solution given below.

Q: A material which conducts electricity only at high temperature is termed as _______________.

A: Semi-conductors are the material that can only conduct electricity at a high temperature.…

Q: If a spring has solid length of 10 cm, maximum compression deflection of 1 cm and clearance between…

A: Given Data⇒ Compression spring Solid length=10 cm Compression deflection=1 cm Clearance between…

Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.