Reference no: EM13833599
Acceleration - miles
1. A truck covers 43.9 m in 7.3 s while smoothly slowing down to a final speed of 2.6 m/s. Find its original speed.
2. Find its acceleration.
3. A Cessna aircraft has a lift-off speed of 92 km/h. What minimum constant acceleration does this require if the aircraft is to be airborne
after a take-off run of 236 m?
4. How long does it take the aircraft to become airborne?
Throwing Up & Freefall - miles
1. ball is thrown vertically upward with a speed of 28 m/s. How high does it rise? The acceleration due to gravity is 9.8 m/s2.
2. How long does it take to reach its highest point?
3. How long does it take the ball to hit the ground after it reaches its highest point?
4. What is its velocity when it returns to the level from which it started?
5. A parachutist with a camera, both descending at a speed of 9.3 m/s, releases the camera at an altitude of 49.3 m. What is the magitude of the velocity of the camera just before it hits the ground? The acceleration of gravity is 9.8 m/s2 and air friction is negligible.
6. How long does it take the camera to reach the ground?
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Price discrimination increase or decrease publishers profit
: The price elasticity of demand for hardback is 0.5 and the price elasticity of demand for paperback is 2. Suppose the publisher increases the price for hardback by 10% and decreases the price of paperback by 10%. Complete the following table. Does pr..
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What one characteristic is damaging in a leadership position
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Why consumer purchase online product versus shopping centres
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What is the profit for the firm if it sells
: A firm operating in perfect competition receives $45 for each unit sold. The form has a variable cost of $25 per item and a fixed cost of $1600. What is the profit for the firm if it sells?
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Acceleration-miles-throwing up-freefall-miles
: A truck covers 43.9 m in 7.3 s while smoothly slowing down to a final speed of 2.6 m/s. Find its original speed.
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Write a speech that you would give to a friend
: Write a speech that you would give to a friend in an elevator summing up the contents of this course. You have 30 to 90 seconds to inform your friend of the most important elements
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The market prices and your producer surplus
: You are the general manager of the Red Dog mine, which is the sole operator in Alaska selling copper. You have a maximum of S =1,000 tons available to sell this year and next year, and the demand for copper will be constant at p = 1000-q each year, D..
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Humanitarian effort to be profitable
: In a certain building construction project , 6500 feet of ductwork is required. Today's price of a 24-inch diameter duct is 127.50$ per foot. If the cost of the ductwork is expected to increase 7% per year into the foreseeable future. How many laptop..
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What is the shift in the supply and demand curves
: How do changes affect the equilibrium price and quantity of SUVs if a buoyant stock market makes people more confident about the future. What is the shift in the Supply and Demand Curves and provide a brief explanation of why each change occurs.
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