A stone is thrown from the top of a building with an initial velocity of 20 m/s straight upward. The building is 50 m high, and the stone just misses the edge of the roof on its way down. Determine: a. The time needed for the stone to reach it maximum height b. The maximum height the stone reaches c. The time needed for the stone to return to the level of the thrower

Q: iving along a highway at 80 km/h, a 15-m long truck driving at 60 km/h is exactly 10 m ahead of you.…

A: Given data as per questionSpeed of car=80 km/hSpeed of truck=60 km/hLength of truck =15 mDistance…

Q: * is the force resisting the .......... relative motion of two surfaces in contact Normal force O…

A: Topic : classical mechanics

Q: The gusset plate is subjected to the forces of three members as shown in (Figure 1) The forces are…

A: GIVEN DATA- A SYSTEM OF FORCES IS GIVEN WE HAVE TO FIND TENSION T AND ANGLE θ

Q: Steam at 20.4 bar is throttled to 2 bar and the temperature after throttling is found to be 175°C.…

A:

Q: A plane wall of thickness 5cm and k-25 W/m.K contains a uniform heat source of 2x107 W/m³. The…

A:

Q: 2. Two copper-constantan thermocouples with 1 and 2 mm diameters are taken from ambient at 20 °C,…

A: For solution refer below images.

Q: The mass center G of the 1365-kg rear-engine car is located as shown in the figure. Determine the…

A:

Q: Calculate the final pressure and temperature inside the cylindrical tank for air at 20˚C and 200…

A:

Q: Replace the two forces and couple by an equivalent couple M and resultant R at A.

A: It is given that Force acting at end F1= 1.97 KN Force acting in middle F2= 1.07 KN Moment at the…

Q: C- The average specific heat (Cp) of the human body is 3.6 kJ/kg- °C. If the body temperature of a…

A: Given data: C=3.6 kJ/kgm=70 kgTi=37°CTf=39°C Need to determine the increase in thermal energy…

Q: when we have smooth surface at the contact to the body, we will have one tangent force to the body…

A: Given question: True or False : When we have smooth surface at the contact to the body, we will have…

Q: 3. A space at sea level is 25°F and RH = 30% Find the other properties of the air in that space. DB…

A: (3) Answer From psychrometric chart:- @ DB = 25F and RH = 30%, we get WB = 18.8 F Humidity= 0.00082…

Q: 2- In order to determine the effects of a force, acting on a body, we must know A. magnitude of the…

A: (Option D).  All of  the above

Q: (a) Determine the reactions at A and E if P = 1060 N. The reactions are positive if to the right or…

A: Given Data- A plane truss is given we have to find reaction forces and Pmax

Q: Water 80F at 10 ft/s through a 6 inches sch 40 steel pipe with lenght of 1000ft The Reynolds number…

A:

Q: determine the magnitude and direction of R

A:

Q: A 60 lb/ft -3 ft - 12 ft- C

A: Given,

Q: the following with (True) or (False): 1- The head loss in box culverts varied linearly with the…

A: Given:  Statements are given and we have to find which of them are true and which are false. 1- The…

Q: List of options for heat recovery options and potential uses in boiler

A: A waste heat recovery unit is an energy recovery heat exchanger which is used to transfer exhaust…

Q: Determine the difference between substitutional and interstitial imperfections/flaws.

A: ●The substitutional and interstitial imperfections are comes under the category of 'extrinsic…

Q: 5- The moment of inertia of a square of side (a) about an axis through its centre of gravity is A.…

A:

Q: The joint is subjected to the axial member force of 6 kips. Determine the average normal stress…

A: Given:Force acting, F=6 kipThickness of the member, t=1.5 in

Q: A water feed pump operates with a mass flow rate of 464 kg/s. The inlet pressure is 689 kPa and the…

A: Given data Mass flow rate = m = 464 kg/s Inlet Pressure = Pi = 689 kPa Outlet Pressure = Po = 26 MPa…

Q: Jaymar bought a small water pump for his aquarium. The pump delivers 0.2 L/s at a net head of 2 m…

A: Given:-  For old pump :  Discharge (Q) = 0.2 L/s Head (H) = 2 m  Speed (N) = 1041 rpm For new pump :…

Q: Find the rate of heat transfer if the cylinder in a stainless steel rod. k = 15 W/m·K (8.7…

A: Givenk=15W/mKL=1mTh=200oCTc=100oCA=5cm2=5×10-4 m2

Q: Can't understand the solution

A:

Q: 1- Moment of inertia of a rectangular section of base (b) and height (h) about an axis through its…

A:

Q: 0₁ and O₂ are the fixed link in the mechanism which is 3.25" away from each other in a vertical…

A: This is the basic problem of the Theory of Machines. The concept of link and mechanisms are…

Q: A cylindrical pressure vessel of radius r = 10.2 in is filled with a gas at a pressure of 455.0 psi…

A: Given         Radius, r = 10.2 in Cap radius, R = 22 in    Pressure, P = 455 psi    Weight, W = 31…

Q: Q.6. For the frame shown in figure, determine the horizontal and vertical components of the pin B…

A:

Q: Q3- For the truss shown in Figure (3), determine the forces in members BK, CD and DK. 20 KN 40 KN 20…

A:

Q: A steady-flow Carnot refrigeration cycle uses refrigerant-134a as the working fluid. The refrigerant…

A: Given that: For a Carnot refrigeration cycle with R134a as working fluid, Condenser temperature is…

Q: A vessel for producing steam contains water at 100°C and is mounted on insulated walls above a…

A: As per the question, I'm going to calculate the radiative heat transfer and also the temperature.

Q: A renewable energy project developer is beginning a new project. List and describe a selection of…

A: Given Renewable energy project developer To find Relevant issue

Q: 3. mi α Ti Li M L₂ T2 0 Sistem crane terdiri dari batang baja bermassa M. Tentukan rumus /persamaan…

A: given; find tension T1 and T2 ?mass m1,m2 and M

Q: Do you expect a material's stiffness to increase or decrease if there is more than one deformation…

A: The stiffness of material if different for different type of loadings causing deformation in the…

Q: For the multi shapes, the moment of inertia is ................. to the algebraic sum of the moments…

A: For the multi shapes, the moment of inertia is .......... to the algebraic sum of the moments of…

Q: Closely spaced lines are etched into a silicon wafer, and an optical scanner is used to count the…

A: Given data: In unloaded condition, there are 9512 lines within a 1 mm length. Under loaded…

Q: 4- The minimum force required to slide a body of weight W on a rough horizontal plane is A. W sing…

A: Given: Weight of the block, W. Let the force acting on the block be P. Consider the angle made by…

Q: 1 2 3 Nitrogen with a mass of 1.5 kg and molar mass of 28 kg/kmol, is compressed isothermally and…

A:

Q: B: Drive an equation could be used to calculate liquid volumetric flow rate for rectangular open…

A: Introduction:- The volumetric flow rate is the flow of volume per unit of time. that means in a unit…

Q: Create an isothermal process that takes a gas/thermodynamic system from a Pi, Ti, Vi to a state…

A:

Q: Replace the three forces shown by an equivalent force-couple system at point A. If the forces are…

A:

Q: In a chemical plant there is A steam pipeline, 150/160 mm in diameter, carries steam. The pipeline…

A:

Q: Steam enters a nozzle steadily with a velocity of 131 m/s and enthalpy of 1,339 KJ/kg and leaves…

A: Given that: h1 = specific enthalpy of steam at inlet of nozzle = 1,339 kJ/kg V1 = velocity of steam…

Q: The asymmetric simple truss is loaded as shown. Determine the reactions at A and D. Neglect the…

A: ● To solve this problem, first we need to determine the dimensions of BC and CD using trigonometric…

Q: 4Q. Compute the capillary depression of mercury at 68 °F (0 = 140°) to be expected in a 0.05 in…

A:

Q: 5Q. The plate is moving at 0.6 mm/s when the force applied to the plate is 4 mN. If the surface area…

A: Given data: du=0.6 mm/s=0.6×10-3 m/sF=4 mN=4×10-3 NA=0.5 m2dy=4 mm=0.004 m Need to determine the…

Q: What do you think is the main difference of humidification process using fine mist or steam from…

A: The humidification process is a process by which the water vapor content of gas can be increased.…

Q: An elevator weighing 2,000 lb attain an upward velocity of 16 ft/sec in 4 seconds with uniform…

A:

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.