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Q: Determine the signs of (d) Q, (e) W, and (f) ΔU associated with process BC. D) q, posative, negati...

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Q: A 560-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-...

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Q: A pipe is tapered so that the large end has a diameter twice as large as the small end. What must be...

A: At the base: Diameter of the large end = D1 = 2d i.e. radius = r1 = d Speed at the large end = ...

Q: Differentiate between stress and strain? Give some examples of each?

A: Stress and strain are two very important factors for the study of strength of materials. With the he...

Q: The Greenland shark is thought to be the longest-living vertebrate on earth. Early estimates of its ...

A: Shark length=15 ft1 ft=30.48 cms=Growth of shark=15−1=14 ft⇒s=14×30.48=426.72 cmv=Growth rate=1 cm/y...

Q: A bowling weighs 71.2 N (16.0 lb). The bowler applies a horizontal force of 160 N (36.0 lb). What is...

A: The weight of the ball is given by, W=mg Here, m is the mass of the ball and g is the acceleration d...

Q: The measured dimension of a rectangular block are 2.267+/- 0.002 in., 3.376 +/- 0.002 in., ans 0.207...

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Q: question B

A: using , pressure = y * density of water * g 1500 = y * 9.8 * 1000 y = 0.15 m

Q: The figure below shows a Ferris wheel that rotates five times each minute. It carries each car aroun...

A: Centripetal Force acts towards the centre

Q: Assume Lake Huron contains 3.60 ✕ 1012 m3 of water, and assume the water's density is that of water ...

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Q: a get away car moves at 90 km/h past a police car that stops by the side of the road. One minute la...

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Q: While a roofer is working on a roof that slants at 36° above the horizontal, he accidentally nudges ...

A: The expression for the work done is W=F·s=-22×4.25=-93.5 J The height is given by h=dsinθ=4.25sin36°...

Q: A light balloon is filled with 402 m3 of helium at atmospheric pressure. (a) At 0°C, the balloon can...

A: A) Density of air = density of balloon 1.29 = (M + 402*0.179)/402518.58 = 71.958 + MM = 446.6 kg(mas...

Q: In an isothermal process for an ideal gas system, where the internal energy is directly proportional...

A: Using law of thermodynamics dQ = dU + dW where dQ is the change in heat , dU is the change in intern...

Q: A 2.0kg mass on a spring with elastic constant 32 N/m starts at a position of x=0.3m away from equil...

A: Given, an m = 2.0 kg mass on a spring with elastic constant k = 32 N/m starts at a position of x = 0...

Q: An alternator turns 1800 revolutions per minute. There are 300 turns and the magnetic flux in each t...

A: Given: The number of turns is 300. The rotation speed is 1800 rev/min. The magnetic flux is ϕB=3010-...

Q: A light rod of length { = 1.00 m rotates about an axis perpendicular to its length and passing throu...

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Q: The material in human bones and elephant bones is essentially the same, but an elephant has much thi...

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Q: A glass coffee pot has a circular bottom with a 9.00-cm diameter in contact with a heating element t...

A: a) The expression for find rate of heat transfer is Q=kATf-Tit=kπd24t Rewrite the above equation to ...

Q: A system expands by 0.75 m3 at a constant pressure of 125 kPa.Find the heat that flows into or out o...

A: Given: The change in volume is 0.75 m3. The pressure is 125 kPa.

Q: A violin is tuned by adjusting the tension in the strings. Brian’s A string is tuned to a slightly l...

A: Given Frequency of Jennifer violin fj = 441.0 Hz Frequency of brain string beats fbeat = ...

Q: Four objects are held in position at the corners of a rectangle by light rods as shown in thne figur...

A: (given) Masses of four objects are: m1 = 2.70 kg m2 = 2.30 kg m3 = 4.50 kg m4 = 2.10 kg Moment of in...

Q: Choose the equation that best represents the net torque about the axle of the wheel shown in the fig...

A: Torque: The product of force to the perpendicular length from the required point is called torque. T...

Q: A spring is 17 cm long when it is lying on a table. One end is attached to a hook and the other end ...

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Q: Light rays are said to be “reversible.” Is this consistent withthe thin lens equation? Explain

A: Introduction: Light rays are said to be reversible. It means that if the final path os the light ray...

Q: A 68 kg lady is being hauled away from a flaming structure as shown in the figure. A 68 kg lady is b...

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Q: Why is displacement usually less than distance travelled?

A: To determine: The displacement is usually less than the distance traveled reason? Distance travel is...

Q: Draw the geometry diagram of vectors, explain how the tension ofvectors F1 and F2 acts on the hangin...

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Q: A 5 kg rifle fires a 50 gm bullet at 750 m/s. At what speed does the rifle kick back?

A: To find the speed of rifle

Q: A traveling wave of the form y1 = 0.01 sin[100π t – (10 π/3) x] m is reflected off a rigid surface l...

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Q: A new design of Saturn 18 rocket with mass 1.55 x106 kg has a propulsion engine that can eject gases...

A: The expression to solve for the change in velocity of the rocket. Δv=vgaslnm0mf

Q: At the gym, you notice a girl doing a “plank.” In this exercise, she holds the position shownwithout...

A: ...

Q: In a water pistol, a piston drives water through a larger tube of area A, into a smaller tube of are...

A: (given) Radius of the larger tube = 1.40 cm = 1.40×10-2 m Radius of smaller tube = 1.10 mm = 1.1...

Q: State the energy transformation starting from when the ball is released till the ball reaches its bo...

A: Starting from the initial condition, when the ball is released, it possess gravitational potential e...

Q: Two objects are connected by a light string passing over a light, frictionless pulley as shown in th...

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