A tennis ball is projected upward with a velocity of 120 m/s. Neglecting air resistance, how long will it take for the ball to strike the ground?    a. 12.5 s   b. 31.1 s   c. 25 s    d. 34.1 s

Q: A 50-cm-diameter pipeline in the Arctic carries hot oil at 30◦C and is exposed to a surrounding temp...

A: Dieameter di=50 cm or ri=25 cmT1=30°C and T∞=-20°CSince thickness of insulation tins=5 cm sor0=ri+ti...

Q: Ns/m is given an initial displacement of 0.1 m. Determine the response form and plot it for 0-4 s.

A:

Q: of degrees sm shown

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Q: chain wit RS=102.3m

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Q: The position of the neutral axis; The maximum tensile and compressive stresses; and The shear stress...

A: moment of inertia of channel section = 3.37500 x107 about neutral axis

Q: QUESTION 1 Calculate the spindie speed in RPM of a lathe turning a 96 milimeter diameter material th...

A:

Q: age compressor delivers 0.23 kg/s of air. The suction pressure and temperature are 100 kPaa and 27˚C...

A: we have to determine the work doe by the compressor , we can assume perfect intercooling.

Q: bient air is at a pressure of 100 kPa, dry bulb temperature of 30° C and 60% relative humidity, The ...

A: Given:Patm=100 kPaDry bulb temperature=30o Cϕ=60 % or 0.6

Q: Problem: The reading of an automobile fuel gage is proportional to the gage pressure at the bottom o...

A:

Q: 1.0 m 2.6 m 2.6 m 1600 N/m 900 N/m

A: Prismatic cantilever beam EI=1200 KN-m2 Taking section at a distance x from the free end. By similar...

Q: ank the materials from highest to lowest of which has the best thermal shock resistance without doin...

A:    Thermal shock resistance refers to a material's capacity to withstand quick and abrupt temperatur...

Q: A rigid uniform flywheel has diameter of 1 m. A torque of 20 N-m is applied to the disk. If the disk...

A:

Q: The 5.5kg block hits the spring with a speed of 3.9m/s. Determine the total distance traveled by the...

A: Given data: m=5.5 kgv=3.9 m/sk=2.7 N/m Need to determine the  total distance traveled by the block b...

Q: 2.13: To provide natural draught, a chimney of height 16 m is used. Calculate, )The draught in mm of...

A: Given:- H=16m Find:-  Draught in mm of water for maximum discharge (h)=? if Tg=350 degC = 350+273 =...

Q: and exits at 50°C. The value of the Log Mear outside of a tube. Cold enters the tube at 20°C Saturat...

A: Given:Thi=100o CThe=100o CTci=20o CTce=50o C

Q: A cam drive is used for a mechanism that packs stuffing into shipping boxes. The cam follower must r...

A:

Q: A vehicle's Maximum Gross Weight (MGW) can be found on the New York State registration and is used t...

A: True. The MGW tells the Maximum gross weight.

Q: Question 2 A mass of 5 kg is supported on two springs, the stiffness of the springs being 2000 N/m ...

A:

Q: Q.44. Give the different parameters value for different dielectric used in cable. Also, describe the...

A:     When an electric field is applied to a dielectric material, electric charges do not flow through...

Q: Figure Q5 shows a thick cylinder of [A] mm intemal radius and [B] mm outer radius is subjected to an...

A: (a)

Q: What angle resultant will make with horizontal in following force system 10ON >100 N Zero degree 45 ...

A: Given data as pre question Force p1 =100 N Force p2= 100 N  

Q: A bar is subjected to fluctuating tensile load from 30kN to 100kN. The material has yield strength o...

A: Given data,  P1= 30 kN  P2= 100 kN  σy= 140 MPa  Fos = 2  Let A be the area,

Q: A 40-lb suitcase slides from the rest 20 ft down the ramp. The suitcase has an initial velocity down...

A:

Q: Q2  a) Explain the function and effectiveness of fire fighting agent (media) with reference to the ...

A: The "fire triangle" is made up of three elements: oxygen, heat, and fuel. When you add the fourth el...

Q: The compression ratio of an air-standard Otto cycle is 7.5. P1 = 85 kPa and T1 = 32 Celsius at the s...

A:

Q: ... Hamstring 20cm Weight of lower leg + foot =4.5kg The weight of the lower leg and foot combined i...

A: Find the value of force in the hamstring

Q: Water in a main pipe at street level is at a gauge pressure of 140 kPa and is moving with negligible...

A:

Q: A steam jet impinges on a row of moving blades. For the conditions listed, determine all angles and ...

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Q: An overhanging beam of channel section supports a uniformly distributed load of 10 kN/m and a concen...

A: Given: The UDL, w = 10 kN/m The concentrated load, P = 20 kN

Q: Slider block A moves to the left with a constant velocity of 6 m/s. Determine (a) the velocity of bl...

A: Given:VA=6 m/s

Q: (b) A production line consists of below tasks. 1. Place material A to conveyor 2. Weld material A an...

A:

Q: A student team is to design a human-powered submarine for a design competition. The overall length o...

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Q: Find the solution to the equation 2x^2 - ln(1/3x) - 5x = 0. Use a tolerance of function error of 0.0...

A:

Q: Consider the aluminum alloy bar with Kic =30 MPa vm, ay=500 MPa. Can you use the LEFM? Explain. 0.37...

A: Given DataKik=30MPaσy=500MPa

Q: U4.3 1 m A rectangular gate 1.6 m wide is used as a partition as shown. One side has linseed oil fil...

A:

Q: If 5.5m³ of nitrogen at 30°C and 5.1kPa abs is permitted to expand isothermally to 7.4m3, what is th...

A: For isothermal process P1V1 = P2V2  here, P1 = 5.1 kpa V1 = 5.5 m3 V2 = 7.4 m3    

Q: 2 Q2 = 10 liter/s %3D 3 DI =? Water D3 = 65mm Tank base area=1 m²

A: In the tank, some pipes are inlets and some are outlets. From inlet the water enters within the tank...

Q: The Diesel Opacity (Smoke Meter) Emissions Inspection procedure requires that the Certified Inspecto...

A: After reading the procedure manual, I found out that RPM (tac) probe and oil temperature probe both ...

Q: A second-order system is described by the following equation: a x(t) + x(t) + b x(t) = 12 cos (wo t)...

A:

Q: (i) Process average and control limits.

A:

Q: e mean speed of the flywheel

A: Given; A flywheel of moment of inertia, I= 9.8 kg m3It fluctuates by 30 rpmor, N1-N2=30 rpmfluctuate...

Q: Design a cylindrical pressure vessel to carry compressed air for a self-contaihed breathing apparatu...

A: given; →inside diameter(di)=20cm=200mm→outside diameter(do)=?→service pressure(P)=4MPa→design stress...

Q: Given the following values, calculate their relative compactness ydma=2,250 Kg/cm?, ydmin=1,120 Kg/c...

A: Given DataYdmax=2250 kg/cm3Ydmin=1120 kg/cm3Ydmat=1635 kg/cm3

Q: . In the casting of steel under certain mould conditions, the mould constant in Chvorinov's rule is ...

A: Given:Mould constant, C=4 min/cm2Dimension of plate=25×8×2.5 cm3n=2

Q: Q1.5 (v6q9-52, Diesel) An ideal cycle has a compression ratio of 18 and a cutoff ratio of 1.5. Deter...

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Q: 3.23: An ideal refrigeration cycle operates with R134a as the working fluid. The temperature of refr...

A: The properties at -20o C and 40o C are taken from the tables. Temp. T(oC) Sat liquid hf Evap, hfg...

Q: Straight, rectangular cross-section fins made of metal with constant thermal conductivity k = 235 W/...

A: (a) Fin efficiency, ηfin = 80.57%. (b) Heat transfer rate from fin, qfin = 444.83 W.

Q: A body starts with a initial velocity of 26m/s and moves with the constant acceleration of 7ms-2 for...

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Q: a) The total strain energy for a bar of length L. is given by the equation -J. 2EA. How would the eq...

A: we have to determine the effect of making the bar tapered.

Q: A cam drive is used for a mechanism that moves a tool in an automated screw machining process. The c...

A: Given that: Cam follower rise outward 24 mm with harmonic motionin 0.25, dwell for 0.35, fall 10 mm ...

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.