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(8 points) ). Find the A trough is 7 meters long, 2 meters wide, and 5...
A trough is 7 meters long. 1.5 meters wide and 5 meters deep. The vertical cross-section...
A trough is 7 meters long. 1.5 meters wide and 5 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 5 meters, and base, on top, of length 1.5 meters). The trough is full of water :). Find the amount of work in joules m3 required to empty the trough by pumping the water over the top. (Note: Use g = 9.8% as the acceleration due to gravity.) (density...
A trough is 8 meters long, 1 meters wide, and 2 meters deep. The vertical cross-section...
A trough is 8 meters long, 1 meters wide, and 2 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 2 meters, and base, on top, of length 1 meters). The trough is full of water (density 1000kgm31000kgm3 ). Find the amount of work in joules required to empty the trough by pumping the water over the top. (Note: Use g=9.8ms2g=9.8ms2 as the acceleration due to gravity.)
A trough is 9 meters long, 1.5 meters wide, and 3 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 3 meters, and base, on top,...
A trough is 9 meters long, 1.5 meters wide, and 3 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 3 meters, and base, on top, of length 1.5 meters). The trough is full of water (density 1000kgm^3). Find the amount of work in joules required to empty the trough by pumping the water over the top. (Note: Use g=9.8ms^2 as the acceleration due to gravity.)
2 and 4 2. [-/16.66 Points] DETAILS SCALCET8 6.4.009. Suppose that 2 ) of work is...
2 and 4
2. [-/16.66 Points] DETAILS SCALCET8 6.4.009. Suppose that 2 ) of work is needed to stretch a spring from its natural length of 28 cm to a length of 42 cm. (a) How much work is needed to stretch the spring from 33 cm to 38 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 40 N keep the spring stretched? (Round your answer one decimal place.)...
(1 point) 5 Joules of work are done when stretching a spring from it's natural length...
(1 point) 5 Joules of work are done when stretching a spring from it's natural length to 11 cm beyond it's natural length. What is the force (in Newtons) needed to stretch the spring 11 cm?
Hooke’s Law states that the force required to maintain a spring stretched x units beyond its...
Hooke’s Law states that the force required to maintain a spring stretched x units beyond its natural length is proportional to x, i.e. f(x) = kx where k is a positive constant. Suppose that 4 J of work is needed to stretch a spring from its natural length 10 cm to a length of 36 cm. Find the exact value of work needed to stretch the spring from 15 cm to 28 cm.
(1 point) Book Problem 9 A heavy rope, 20 ft long, weighs 0.9 lb/ft and hangs...
(1 point) Book Problem 9 A heavy rope, 20 ft long, weighs 0.9 lb/ft and hangs over the edge of a building 130 ft high a) How much work is done in pulling the rope to the top of the building? Work ft-lb. a) How much work is done in pulling half the rope to the top of the building? Work ft-lb. (1 point) Book Problem 15 An aquarium 10m long, 5m wide, and 9m deep is full of water....
All answers must be completely reduced and simplified for full credit. Show all work necessary to...
All answers must be completely reduced and simplified for full credit. Show all work necessary to complete the problem. (Use a calculator for calculating if you need to.) 1. (3 points) How much work is done when a hoist lifts a 150-kg boulder to a height of 8m? 2. Suppose that 6 J of work is needed to stretch a spring from its natural length of 20cm to a length of 28 cm. a) (4 points) How much work is...
(5 points) The Deligne Dam on the Cayley River is built so that the wall facing...
(5 points) The Deligne Dam on the Cayley River is built so that the wall facing the water is shaped like the region above the curve y = 0.1x2 and below the line y 180. (Here, distances are measured in meters.) The water level is 40 meters below the top of the dam. Find the force (in Newtons) exerted on the dam by water pressure. (Water has a density of 1000kg/m3, and the acceleration of gravity is 9.8m/sec.) Answer:
(1) Suppose you lift a stone that has a mass of 5.3 kilograms off the floor...
(1) Suppose you lift a stone that has a mass of 5.3 kilograms off the floor onto a shelf that is 2 meters high. How much work have you done? Joules (2) Suppose you lift a laptop that weighs 3.2 pounds off the floor onto a shelf that is 4 feet high. How much work have you done? foot-pounds (3) The force on a particle is described by 9x^3−1 pounds at a point xx feet along the x-axis. Find the...
A trough is 7 meters long. 1.5 meters wide and 5 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 5 meters, and base, on top, of length 1.5 meters). The trough is full of water :). Find the amount of work in joules m3 required to empty the trough by pumping the water over the top. (Note: Use g = 9.8% as the acceleration due to gravity.) (density...
2 and 4
2. [-/16.66 Points] DETAILS SCALCET8 6.4.009. Suppose that 2 ) of work is needed to stretch a spring from its natural length of 28 cm to a length of 42 cm. (a) How much work is needed to stretch the spring from 33 cm to 38 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 40 N keep the spring stretched? (Round your answer one decimal place.)...
(1 point) Book Problem 9 A heavy rope, 20 ft long, weighs 0.9 lb/ft and hangs over the edge of a building 130 ft high a) How much work is done in pulling the rope to the top of the building? Work ft-lb. a) How much work is done in pulling half the rope to the top of the building? Work ft-lb. (1 point) Book Problem 15 An aquarium 10m long, 5m wide, and 9m deep is full of water....
All answers must be completely reduced and simplified for full credit. Show all work necessary to complete the problem. (Use a calculator for calculating if you need to.) 1. (3 points) How much work is done when a hoist lifts a 150-kg boulder to a height of 8m? 2. Suppose that 6 J of work is needed to stretch a spring from its natural length of 20cm to a length of 28 cm. a) (4 points) How much work is...
(5 points) The Deligne Dam on the Cayley River is built so that the wall facing the water is shaped like the region above the curve y = 0.1x2 and below the line y 180. (Here, distances are measured in meters.) The water level is 40 meters below the top of the dam. Find the force (in Newtons) exerted on the dam by water pressure. (Water has a density of 1000kg/m3, and the acceleration of gravity is 9.8m/sec.) Answer:
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