When a .22-caliber rifle is fired, the expanding gas from the burning gunpowder creates a pressure behind the bullet. This pressure causes the force that pushes the bullet through the barrel. Suppose the barrel has a length of 0.557 m and an opening whose radius is 2.94 x 10-3 m. A bullet (mass = 2.6 x 10-3 kg) has a speed of 467 m/s after passing through this barrel. Ignore friction and determine the average pressure of the expanding gas.

Q: Consider the hydraulic lift shown in the figure. The small piston has an area A¡ of 0.0330 m², and…

A: GivenArea of small piston(A1)=0.0330 m2Area of large piston (A2)=4.00 m2and Force (F1) on small…

Q: A 200 foot chain hangs over the edge of a tall building. The chain weighs 2.5 pounds per foot. There…

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Q: At sea level a nitrogen molecule has an average translational kinetic energy of 8.7 x 10-21 J. Its…

A: At sea level, a nitrogen molecule has an average translational kinetic energy of 8.7 x 10-21 J. Its…

Q: A 75.0 kg pole-vaulter running at 12.0 m/s vaults over the bar. His speed when he is above the bar…

A: Given data The mass is m=75.0 kg The initial velocity is u=12.0 m/s The final velocity is v=5.0 m/s…

Q: What is the kinetic energy of a 48 gram bullet traveling at 200.0 m/s? KE = x 102 J

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Q: (a) Tony Hawco (m-62 kg), a Newfoundland based skater decides to have his first ride on the new…

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Q: A certain cloud at an altitude of 1.75 km contains 3.2x107 kg of water vapor. What time it would…

A: Given, Clouds are at an altitude of, h = 1.75 kmmass of the water vapor, m = 3.2 ×107 kgPower of the…

Q: Part (e) Calculate the magnitude of the angular momentum L, in kg · m2/s,of the coconut as observed…

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Q: Trial h2 Ah GPE %diff (J) m t KE (kg) (m) (m) (m) (m) (s) (m/s) (J) 1 1.0 0.05 0.56 0.20 0.36 0.021…

A: Kinetic energy of an object is related with the velocity of the object. Kinetic Energy is given by…

Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy (in…

A: radius = 2.1 km h = 2.7 cm density of water = 1000 kg/m3

Q: A mass on a spring inside of a viscous fluid is given 5 Joules of energy. The spring constant is…

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Q: What is the velocity of the silver sphere at the moment it hits the ground? (As= ‒‒‒‒‒‒..

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Q: 1 the bullet travels in the rdredion. The force exe gas on the buet is (1600 10,00-2400)N where s in…

A: Given:-  F =  (16,000 + 10,000x - 24,000x2) N  A woman fires a rifle with barrel length of 0.5400 m…

Q: The surface tension of soap solution is- 0.035 N/m. The energy needed to increase the radius of the…

A: To find-Energy required (E)=?Given-S.T. (T)=0.035 N/mr1=4 cm=4×10-2 mr2=6 cm=6×10-2 m

Q: A block of mass 5 kg has a speed of 2 m/a at a height h above a spring (k = 1000 N/m). If the spring…

A:

Q: In the figure, a 4.5 g ice flake is released from the edge of a hemispherical bowl whose radius r is…

A: Given,  radius of bowl= 24 cm or 0.24 m Mass of flake= 4.5 gram mass of flake in second case= 4.5*6=…

Q: Steel ball with radius of 0.09 m lays on a bottom of the lake 5 m deep. What work is needed to lift…

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Q: The 1.1 kgkg physics book in figure is connected by a string to a 550 gg coffee cup. The book is…

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Q: A block with weight w = end of a vertical spring with a spring constant k. The spring is stretched…

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Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy (in…

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Q: Steel ball with radius of 0.11 m lays on a bottom of the lake 4 m deep. What work is needed to lift…

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Q: Consider four identical cars. Two of them collide head-on when both are traveling at 34 m/s . The…

A: v1=34m/s v2=27m/s We need to find The ratio of the amount of kinetic energy converted to internal…

Q: what work must be done for a bubble to increase its radius from 5 cm to 8 cm? consider surface…

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Q: A 58 kg pole vaulter running at 14 m/s vaults over the bar. Her speed when she is above the bar is…

A: Given: m = 58 kg V = 14 m/s v = 1.7 m/s H=height.

Q: (b) Applying the methods of the chapter, find the average pressure on the walls (a). 354 x Pa (c)…

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Q: In the figure, a 3.0 g ice flake is released from the edge of a hemispherical bowl whose radius ris…

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Q: What does the percent difference between GPE and KE tell you about the efficiency of energy…

A: the percent difference between GPE and KE tell you about the efficiency of energy transformations…

Q: A cork gun contains a spring whose spring constant is 17.0 N/m. The spring is compressed by a…

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Q: What is the work needed to lift 15kg of water from a well 12m deep ? Asume the water has a constant…

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Q: In the figure, a 2.8 g ice flake is released from the edge of a hemispherical bowl whose radius r is…

A: Given Mass of ice flake ,m=2.8 g=2.8×10-3 kgRadius of hemispherical bowl, r=21 cm=0.21 m

Q: Before: mA = 2.00 kg mB = 3.00 kg vA = +4.00 m/s vB = 0 m/s After: mA = 2.00 kg vA = −0.800 m/s mB =…

A: The given values satisfy momentum conservation equation along single axis.  mA.vA+mB.vB = constant…

Q: Q. 12 : Soap bubble of radius (1//a) cm is expanded to a bubble of radius (2//n) cm. If the surface…

A: Given data- T=30 dyne/cm r=1π cmR=2π cm

Q: 87. An artillery shell is fired at a target 200 m above the ground. When the shell is 100 m in the…

A:

Q: Steel ball with radius of 0.11 m lays on a bottom of the lake 4 m deep. What work is needed to lift…

A: Given: The radius of the ball is 0.11 m. The depth of the lake is 4 m. The density of the steel is…

Q: A block of mass 5 kg has a speed of 2 m/s at a height h above a spring (spring constant k = 1000…

A: Given :    Mass of the block, m = 5 kg     Speed of the block, v = 2 m/s    Spring constant, k =…

Q: The total mechanical energy of an isolated system is conserved as long as nothing in the system is…

A: The total mechanical energy of system is the some of the kinetic energy and potential energy. the…

Q: (d) What is the work done by friction as Tony rides from point A to B? Your Answer: Answer units

A: Given: Mass of skater, m=62 kg Speed at A, v∘=2 ms-1 Speed at B, v1=7 ms-1 Radius of halfpipe, R=3 m

Q: Two identical cars, A and B, traveling at 55 mi/h collide head-on. A third identical car, C, crashes…

A: Given that:- All three cars are identical. So, Mass of carA=mass of carB=mass of carC

Q: skier starts to slide stagnantly on the top of a frictionless slope at a height of y = 20 m, as…

A: Given : y = 20 m μk = 0.210  g = 9.8 m/s2 vC = 0 (because finally the skier stops)