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Question: You are designing an air delivery system to supply three hand-held rock drills requiring 110 cu ft/min (3.1 m3/min) each. The receiver of the air compressor will be operated at 110 psig (785 kPa). The fixed air supply system will consist of 1400 ft (427 m) of pipe and a manifold. Each drill will be connected to the manifold by 80 ft (24.4 m) of l-in. (2.5-cm) hose. Manifold pressure loss is rated at 2.5 psig (17.2 kPa). Determine the minimum size of pipe required to maintain a pressure of at least 90 psig (621 kPa) at each drill when all drills are operating simultaneously. Assume a 7% line leakage.
What is the average power in watts he expends climbing the hill - Please show your step-by-step solution along with formulas.
A crate is pushed across a level floor by a constant forcein the direction of motion. The force does 5 J of work on the crate. The kinetic energy of the crate increased by 3 J while the force was being applied.
A 0.954 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. What is the average current supplied to the car's motor
In a circus performance, a monkey is strapped to a sled andboth are given an initial speed of 3.0m/s up a 18.0° inclined track. How far up the incline do the monkey and sled move
A 0.42-kg object travels from point A to point B. If the speed of the object at point A is 6.0 m/s and the kinetic energy at point B is 8.0 J, determine the following. (a) kinetic energy of the object at point A (b) speed of the object at point B.
Dry ice is frozen carbon dioxide. Suppose you have a piece of dry ice with a mass of 200 grams (a little less than half a pound) which you place into a large deflated bag, which you seal. What volume will the bag have expanded to
a car with mass of 200 g is carring a block of 150 g climbingan incline of 30 degrees. assume the car and the attached
A good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1789 revolutions per minute. How many revolutions does baseball make on its way to home plate? For simplicity, assume that the 60.0 ft path is a straig..
What is a scale useful in measuring the temperature of super cold substances
You are designing a lathe motor, part of which consists of a uniform cylinder whose mass is 90 kg and whose radius is 0.40m that is mounted so that it turns without friction on its axis, which is fixed.
A 6.0-kg block initially at rest is pulled to the right along a frictionless, Use the work-kinetic energy theorem to find the block's speed after it has moved 3.0
Assume air resistance is negligible; from what height (in cm) above the compressed spring was the block dropped.
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