A car travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity of 60 kmph. The average velocity of the car in kmph is

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Q: R12-8. Car B turns such that its speed is increased by (a)a = (0.5e') m/s, where t is in seconds. If…

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Q: 5. A flanged bolt coupling consists of eight 10-mm- diameter steel bolts on a bolt circle 400 mm in…

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Q: Vo = 0.8 m/s as it passes position A. Neglect th mass of the pulleys and cable and determine th…

A: Solution : Given data :- v0 =0.8 m/s

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A: *As per our guidelines we are supposed to answer first three sub-parts of the question. Kindly…

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Q: mm. If in both cases t is in seconds, determine the magnitude of velocity (mm/s) of the collar when…

A: The magnitude of velocity of the collar: V = 464.742 mm/sec

Q: 3) A source and a sink of strength 4 and 8 m/s² are located at (-1, 0) and (1, 0) respectively.…

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Q: Use 3 decimal places The 250-N block rests upon a level plane for which fk = 0.2. It is pulled by…

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Q: A 7.5-kg disk A radius 0.6 m initially rotating clockwise at 300 rev/min is engaged with an 8.5-kg…

A: Given data  mass of disk A (mA) = 7.5 kg  radius of disk A (rA) = 0.6 m angular velocity (wA) = -…

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Q: The amount of heat required to change ice to liquid water is? a. 344 Btu b. 144 Btu c. 114 Btu…

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Q: Determine the N.F. of the D.O.F. Springs - Mass Systems as shown in Figures below? k M1 wwwwwwwwww…

A: given; find degree of freedom(DOF)=?

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A: Rate of change of displacement of object is known as velocity. Velocity is vector quantity.

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A: Draw the free-body diagram.

Q: The 35-kg roll of paper rests along the wall where the coefficient of kinetic friction is μ = 0.2. A…

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Q: Illustrate a simple work plan drawing  related to energy engineering

A: Given data Illustrate a simple work plan related to energy engineering

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A: Given: Mach number = 3.5 T = 20 deg C

Q: Ex.1 A small liquid water pump is located 15 m down in a well, taking water in at 10°C, 100 kPa at a…

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Q: 6. Determine the number of 10-mm diameter steel bolts that must be used on the 400-mm bolt circle of…

A: The number of bolt on the 400-mm bolt circle: n1 = 12 bolts

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Q: Figure 1 shows a system with two different masses with mass m, connected by springs with stiffness…

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Q: 11.9 (A/B). Develop from first principles an expression for the instantaneous stress set up in a…

A: Find the instantaneous stress.

Q: Consider (Figure 1). For a short period of time, the motor turns gear A with a constant angular…

A: Jskak

Q: nd the rate of entropy production and determine if the cycle operates irreversibly, reverisbly, or…

A: ηcarnot=1-TLTH         =1-4001200ηcarnot=0.667=66.7%  a). Q˙H=600KW   ,   Q˙C=400KW   W˙NET =200KW…

Q: (Moment-of-momentum) A lawn sprinkler is constructed from pipe with 0.226-in. inside diameter as…

A: d=.226 in=.0188ft r1=r2=5.54 in=.462 ftr=2.77 in =.231 Since diameter is same and mass flow rate is…

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A: Find the average acceleration between AB and AC.

Q: How much entropy of 5 kJ of ice will change as it melts into water at the same temperature (O°C) ?…

A: We need to calculate how much entropy changes when 5 kJ of ice melts into water at the same…

Q: Compare the Motion of the Follower as: retardation, and 4. Cycloidal motion) Simple harmonic motion,…

A: Simple harmonic motion is a form of periodic motion in mechanics and physics in which the…

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Q: 15. Simplification, 16. Gravity 17. Space Utilization 18. Unit Size

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Q: 2) (2x + sin x)dx + x cos y dy = 0 (Exact). dy

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Q: A 12' 1500 lb D 2000 lb E/ 10' 48' Figure 1-63 150 lb/ft G F 2000 lb B

A: Let us consider the given figure 1-63.tan θ=1024      θ=22.6°CA=12cos 22.6=13.6°FB=AD=ACcosθ…

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Q: Ex3) The compressor in a plant (see Fig. 4.9) receives carbon dioxide at 100 kPa, 280 K, with a low…

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Q: Figure below shows a siphon that is used to draw water from a tank. The siphon tube has an inside…

A: Find the simplified bernoulli's equation for the point A and D.

Q: an exam done by 100 students, the average grade is 4.2 and only 32 stud ssuming that the grade…

A: Given,  total no. of students=100  Average grade: 4.2 No. of students passed in class: 32 No. of…

Q: 2) A 10 cm thick piston sits inside a cylinder containing 0.1 kg of water. An internal flange is…

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Q: Q3/ Given the following data, calculate static or shut-in hole pressure of gas well with average…

A: Given: γg=.7                                 Well depth(H)=3048 mTubing pressure(Pwh)=3500…

Q: The forces acting on a 1-ft length of a dam are shown in Figure 1-62. The upward ground reaction…

A: Given data as per the question Horizontal force at A side =12500 lb Vertical force =30000 lb The…

Q: Problem 1 Many luxury automobiles have thermostatically controlled air-conditioning systems for the…

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Q: Draw the full pneumatic and ladder diagram of the sequence operation given below. Also, draw the…

A: Given : A+, B+, B-, C+, A-, C- To find : Pneumatic diagram

Q: 058 Btu/h · ft · °R). The inner temperature of the insulation is 67°F. The outer temperature of the…

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Q: Q2: A venturimeter is fitted in a pipe of 30 cm diameter inclined at 40° to the horizontal to…

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Q: Find the forces in the members DF, EF, and EG of the howe roof truss shown Assign a tension or…

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Q: A reheat cycle with two stages of reheating is executed, with steam expanding initially from 2250…

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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.