The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net . Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0° the horizontal. At this instant your opponent is 10.0 m away from the ball. He begins moving away from you 0.21 s later, hoping to reach the ball and hit it back at the moment that it is 2.10 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.)
In: Physics
In: Economics
A small plastic sphere with a charge of -5nC is near another plastic sphere with a charge of -12nC. (a) If the spheres repel one another with a force of magnitude 8.2 x 10^-4, what is the distance between the spheres? (b) What is the new value of the force if the distance doubles its original value?
In: Physics
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net (see the drawing). Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0° the horizontal. At this instant your opponent is 10.0 m away from the ball. He begins moving away from you 0.41 s later, hoping to reach the ball and hit it back at the moment that it is 2.10 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.)
In: Physics
*******Software testing occurs near the end of the programming process. Because of this, if a project falls behind schedule, testing time is often reduced. Discuss the possible impacts of less-than-thorough testing. Topics might include company reputation, customer dissatisfaction, the company’s ability to sell new or updated products, etc. Discuss which is worse: releasing a product late or releasing it on time without fully testing it.********
In: Computer Science
Two airplanes in a show are performing an act called a near miss, in which they start over opposite ends of the show (in the air), head directly toward one another, and then roll at the last second to avoid collision. Suppose the roll is supposed to happen in front of the announcer
In: Physics
Software testing occurs near the end of the programming process. Because of this, if a project falls behind schedule, testing time is often reduced. Discuss the possible impacts of less-than-thorough testing. Topics might include company reputation, customer dissatisfaction, the company’s ability to sell new or updated products, etc. Discuss which is worse: releasing a product late or releasing it on time without fully testing it. "please answer based on arguments"
In: Computer Science
Kaspar Corporation makes a commercial-grade cooking griddle. The following information is available for Kaspar Corporation's anticipated annual volume of 25,600 units
| Per Unit | Total | |
| Direct materials | $18 | |
| Direct labor | $5 | |
| Variable manufacturing overhead | $16 | |
| Fixed manufacturing overhead | $358,400 | |
| Variable selling and administrative expenses | $3 | |
| Fixed selling and administrative expenses | $51,200 |
The company uses a 43% markup percentage on total cost.
(a)
Compute the total cost per unit. Total cost per unit = $_______
Compute the target selling price. Target selling price = $_______
In: Accounting
Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Management would like to better understand the variable and fixed portions of it car washing costs. The company operates its own car wash facility in which each rental car that is returned is thoroughly cleaned before being released for rental to another customer. Management believes that the variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following data have been compiled:
| Month | Rental Returns | Car Wash Costs | |||
| January | 2,400 | $ | 11,400 | ||
| February | 2,500 | $ | 13,300 | ||
| March | 2,800 | $ | 12,200 | ||
| April | 3,100 | $ | 14,900 | ||
| May | 3,700 | $ | 16,600 | ||
| June | 5,100 | $ | 24,100 | ||
| July | 5,600 | $ | 22,600 | ||
| August | 5,600 | $ | 23,200 | ||
| September | 4,800 | $ | 23,200 | ||
| October | 4,100 | $ | 22,300 | ||
| November | 2,200 | $ | 11,100 | ||
| December | 3,000 | $ | 15,600 | ||
2. Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to wash cars. (Round Fixed cost to the nearest whole dollar amount and the Variable cost per unit to 2 decimal places.)
In: Accounting
Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Management would like to better understand the variable and fixed portions of it car washing costs. The company operates its own car wash facility in which each rental car that is returned is thoroughly cleaned before being released for rental to another customer. Management believes that the variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following data have been compiled:
| Month | Rental Returns | Car Wash Costs | |||
| January | 2,400 | $ | 10,900 | ||
| February | 2,500 | $ | 13,100 | ||
| March | 2,700 | $ | 11,700 | ||
| April | 3,000 | $ | 14,100 | ||
| May | 3,600 | $ | 16,100 | ||
| June | 5,000 | $ | 23,100 | ||
| July | 5,500 | $ | 22,100 | ||
| August | 5,500 | $ | 21,900 | ||
| September | 4,700 | $ | 22,700 | ||
| October | 4,000 | $ | 20,800 | ||
| November | 2,200 | $ | 10,600 | ||
| December | 2,800 | $ | 13,900 | ||
Exercise 5A-2 Part 2
2. Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to wash cars. (Round Fixed cost to the nearest whole dollar amount and the Variable cost per unit to 2 decimal places.)
In: Statistics and Probability