Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Textbook Question
Chapter 8.3, Problem 13P
A 250-kg part falls from a plane and hits the ground at 150 km/h. Find its kinetic energy.
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Chapter 8 Solutions
Applied Physics (11th Edition)
Ch. 8.1 - Given: F = 10.0 N s = 3.43 m W = ?Ch. 8.1 - Given: F = 125 N s = 4875 m W = ?Ch. 8.1 - Given: F = 1850 N s = 625 m = 37.5 W = ?Ch. 8.1 - Given: W = 697 ft lb s = 976 ft F = ?Ch. 8.1 - Given: F = 25,700 N s = 238 m W = 5.57 106 J = ?Ch. 8.1 - Given: F = ma m = 16.0 kg a = 9.80 m/s2 s = 13.0 m...Ch. 8.1 - How much work is required for a mechanical hoist...Ch. 8.1 - A hay wagon is used to move bales from the field...Ch. 8.1 - A worker lifts 75 concrete blocks a distance of...Ch. 8.1 - The work required to lift eleven 94.0-lb bags of...
Ch. 8.1 - How much work is done in lifting 450 lb of cement...Ch. 8.1 - How much work is done lifting a 200-kg wrecking...Ch. 8.1 - A gardener pushes a mower a distance of 900 m m in...Ch. 8.1 - A traveler is pulling a suitcase at an angle 40.0...Ch. 8.1 - A crate is pulled 675 ft across a warehouse floor...Ch. 8.1 - A man pulls a sled a distance of 231 m. The rope...Ch. 8.1 - A tractor tows a barge through a canal with a...Ch. 8.1 - Two tractors tow a barge through a canal; each...Ch. 8.1 - Two students push a dune buggy 35.0 m across a...Ch. 8.1 - After a rain, the force necessary to push the dune...Ch. 8.1 - A delivery person carries a 215-N box up stairs...Ch. 8.1 - A crate is pulled by a force of 628 N across the...Ch. 8.1 - A laborer pushes a wheelbarrow weighing 200 N at...Ch. 8.1 - An end loader lifts a 1000-N bucket of gravel 1.75...Ch. 8.2 - Given: W = 132 J t = 7.00 s p = ?Ch. 8.2 - t = 14.3s W = ? Given: P = 75.0 WCh. 8.2 - Given: P = 75.0 W W = 40.0 J t = ?Ch. 8.2 - Given; W = 55.0 J t = 11.0s p = ?Ch. 8.2 - The work required to lift a crate is 310 J. If the...Ch. 8.2 - When a 3600-lb automobile runs out of gas, it is...Ch. 8.2 - An electric golf cart develops 1.25 kW of power...Ch. 8.2 - How many seconds would it take a 7.00-hp motor to...Ch. 8.2 - Prob. 9PCh. 8.2 - A 1500-lb casting is raised 22 0 ft in 2.50 min....Ch. 8.2 - Prob. 11PCh. 8.2 - A wattmeter shows that a motor is drawing 2200 W....Ch. 8.2 - A 525-kg steel beam is raised 30.0 m in 25.0 s....Ch. 8.2 - How long would it take a 4.50-kW motor to raise a...Ch. 8.2 - A 475-kg pre-stressed concrete beam is to be...Ch. 8.2 - A 50.0-kg welder is to be raised 15.0 m in 12.0 s....Ch. 8.2 - An escalator is needed to carry 75 passengers per...Ch. 8.2 - A pump is needed to lift 750 L of water per minute...Ch. 8.2 - A machine is designed to perform a given amount of...Ch. 8.2 - A certain machine is designed to perform a given...Ch. 8.2 - A motor on an escalator is capable of developing...Ch. 8.2 - A pump is capable of developing 4.00 kW of power....Ch. 8.2 - A pallet weighing 575 N is lifted a distance of...Ch. 8.2 - A pallet is loaded with bags of cement; the total...Ch. 8.2 - A bundle of steel reinforcing rods weighing 175 N...Ch. 8.2 - An ironworker carries a 7.50-kg toolbag up a...Ch. 8.3 - Given: m = 11.4 kg g = 9.80m/s2 h = 22.0m Ep = ?Ch. 8.3 - Given: m = 3.50 kg g = 9.80 m/s2 h = 15.0 m Ep = ?Ch. 8.3 - Given: m = 4.70 kg = 9.60 m/s Ek = ?Ch. 8.3 - Given: Ep = 93.6 J g = 9.80m/s2 m = 2.30kg h = ?Ch. 8.3 - A truck with mass 950 siugs is driven 55.0 mi/h....Ch. 8.3 - A bullet with mass 12.0 g travels 415 m/s. Find...Ch. 8.3 - A bicycle and rider together have a mass of 7.40...Ch. 8.3 - A crate of mass 475 kg is raised to a height 17.0...Ch. 8.3 - A tank of water containing 2500 L of water is...Ch. 8.3 - The potential energy of a girder, after being...Ch. 8.3 - A 30.0-g bullet is fired from a gun and possesses...Ch. 8.3 - The Hoover Dam is 726 ft high. Find the potential...Ch. 8.3 - A 250-kg part falls from a plane and hits the...Ch. 8.3 - Prob. 14PCh. 8.3 - Water is pumped at 250 m3/min from a lake into a...Ch. 8.3 - Oil is pumped at 25.0 m3/min into a tank 10.0 m...Ch. 8.3 - Prob. 17PCh. 8.3 - If the kinetic energy of an object is doubled, by...Ch. 8.3 - A 4.20-g slug is shot from a rifle at 965 m/s. (a)...Ch. 8.3 - A window washer with mass 90.0 Kg first climbs...Ch. 8.3 - A painter weighing 630 N climbs to a height of...Ch. 8.4 - A pile driver falls a distance of 2.50 m before...Ch. 8.4 - A sky diver jumps out of a plane at a height of...Ch. 8.4 - A piece of shattered glass falls from the 82nd...Ch. 8.4 - A 10.0-kg mass is dropped from a hot air balloon...Ch. 8.4 - A 0.175-lb ball is thrown upward with an initial...Ch. 8.4 - A pile driver falls a distance of 1.75 m before...Ch. 8.4 - A sandbag is dropped from a hot air balloon at a...Ch. 8.4 - An ironworker drops a hammer 5.25 m to the ground....Ch. 8.4 - A box is dropped 3.60 m to the ground. What is its...Ch. 8.4 - A piece of broken glass with mass 15.0 kg falls...Ch. 8.4 - A ball is thrown downward from the top of a...Ch. 8.4 - Find the maximum height reached by a ball thrown...Ch. 8.4 - A 4,000-kg mass is dropped from a hot air balloon...Ch. 8.4 - A 2.00-kg projectile is fired vertically upward...Ch. 8 - Work is done when a. a force is applied. b. a...Ch. 8 - Power (a) is work divided by time. (b) is measured...Ch. 8 - A large boulder at rest possesses (a) potential...Ch. 8 - A large boulder rolling down a hill possesses (a)...Ch. 8 - With no sir resistance and no friction, a pendulum...Ch. 8 - Can work be done by a moving object on itself?Ch. 8 - Develop the units associated with work from the...Ch. 8 - Is work a vector quantity?Ch. 8 - Is work being done on a boulder by gravity?Ch. 8 - Is work being done by the weight of a grandfather...Ch. 8 - How could the power developed by a man pushing a...Ch. 8 - How does water above a waterfall possess potential...Ch. 8 - What are two devices possessing gravitational...Ch. 8 - Is kinetic energy dependent on time?Ch. 8 - At what point is the kinetic energy of a swinging...Ch. 8 - At what point is the potential energy of a...Ch. 8 - Is either kinetic or potential energy a vector...Ch. 8 - Can an object possess both kinetic and potential...Ch. 8 - Why is a person more likely to be severely injured...Ch. 8 - How many joules are in one kilowatt-hour?Ch. 8 - An endloader holds 1500 kg of sand 2.00 m off the...Ch. 8 - How high can a 10.0-Kg mass be lifted by 1000 J of...Ch. 8 - A 40.0-kg pack is carried up a 2500-m-high...Ch. 8 - Find the average power output in Problem 4 in (a)...Ch. 8 - A 10.0-kg mass lias a potential energy of 10.0 J...Ch. 8 - A 10.0-lb weight has a potential energy of 20.0 ft...Ch. 8 - At what speed does a 1.00-kg mass have a kinetic...Ch. 8 - At what speed does a 10.0-N weight have a kinetic...Ch. 8 - What is the kinetic energy of a 3000-lb automobile...Ch. 8 - What is the potential energy of an 80.0-kg diver...Ch. 8 - What is the kinetic energy of a 0.020-kg bullet...Ch. 8 - What is the potential energy of an 85.o-kg high...Ch. 8 - A worker pulls a crate 10.0 m by exerting a force...Ch. 8 - A hammer falls from a scaffold on a building 50.0...Ch. 8 - Rosita needs to purchase a sump pump for her...Ch. 8 - A roller coaster designer must carefully balance...Ch. 8 - A 22,500-kg Navy fighter jet flying 235 km/h must...Ch. 8 - The hydroelectric plant at the Itaipu Dam, located...Ch. 8 - A 1250-kg wrecking ball is lifted to a height of...
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- 2. Consider the situation described in problem 1 where light emerges horizontally from ground level. Take k = 0.0020 m' and no = 1.0001 and find at which horizontal distance, x, the ray reaches a height of y = 1.5 m.arrow_forward2-3. Consider the situation of the reflection of a pulse at the interface of two string described in the previous problem. In addition to the net disturbances being equal at the junction, the slope of the net disturbances must also be equal at the junction at all times. Given that p1 = 4.0 g/m, H2 = 9.0 g/m and Aj = 0.50 cm find 2. A, (Answer: -0.10 cm) and 3. Ay. (Answer: 0.40 cm)please I need to show all work step by step problems 2 and 3arrow_forwardFrom number 2 and 3 I just want to show all problems step by step please do not short cut look for formulaarrow_forward
- Look at the answer and please show all work step by steparrow_forward3. As a woman, who's eyes are h = 1.5 m above the ground, looks down the road sees a tree with height H = 9.0 m. Below the tree is what appears to be a reflection of the tree. The observation of this apparent reflection gives the illusion of water on the roadway. This effect is commonly called a mirage. Use the results of questions 1 and 2 and the principle of ray reversibility to analyze the diagram below. Assume that light leaving the top of the tree bends toward the horizontal until it just grazes ground level. After that, the ray bends upward eventually reaching the woman's eyes. The woman interprets this incoming light as if it came from an image of the tree. Determine the size, H', of the image. (Answer 8.8 m) please show all work step by steparrow_forwardNo chatgpt pls will upvotearrow_forward
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