Reference no: EM13957072
1. If a 60 kg woman is riding in a car travelling at 90km/h, what is her linear momentum relative to (a) The ground (b) the car?
2. A 5-g bullet with a speed of 200m/s is fired horizontally into a 0.75 kg wooden block at rest on a table. If the block containing the bullet slides a distance of 0.20m before coming to rest,
(a) what is the coefficient of kinetic friction between the block and the table?
(b) what fraction of the bullet's energy is dissipated in the collision?
3. A 0.20 kg billiard ball travelling at a speed of 15m/s strikes the side rail of the pool table at an angle of 60 degree. If the ball rebounds at same speed and angle, what is the change in its momentum?
4. A pool player imparts an impulse of 3.2 N.s to a stationary 0.25 kg cue ball with a cue stick. What is the speed of the ball just after the impact?
5. An incoming 0.14 kg baseball has a speed of 45 m/s. The batter hits the ball, giving it a speed of 60 m/s. If the contact time is 0.040 s, what is the average force of the bat on the ball?
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What mass will now balance the bags
: In an experiment, five identical bags of rice are balanced by a 10 kg mass. Two bags of rice are added to the other five. What mass will now balance the bags?
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How much additional work must you do to fully compress
: You are loading a spring loaded dart gun and do an amount of work W such that the spring is only 1/3 compressed. How much additional work must you do to fully compress it from 1/3 to fully compressed? Answer in terms of W.
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Forecast model for annual maintenance costs
: 1. The manager of Erehwon police department motor pool wants to develop a forecast model for annual maintenance costs on police cars, based on mileage in the past year, and age of cars. The following data have been collected for eight different car..
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Develop a performance management framework to recommend
: Develop a performance management framework to recommend to the client. You'll need to make sure you address the following: Alignment of the performance management framework to the organizational business strategy.
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What is the average force of the bat on the ball
: An incoming 0.14 kg baseball has a speed of 45 m/s. The batter hits the ball, giving it a speed of 60 m/s. If the contact time is 0.040 s, what is the average force of the bat on the ball?
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Is this an appropriate way to make this decision
: Complete the table above so that you can show the Jackson's what their expected payoff is.
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Cost per item-number of items
: Scenario: Regression equations are created by modeling data, such as the following: Sales = (Cost Per Item - Number of Items) - Constant Charges
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Using the formula for the binomial distribution
: Assuming that 6 in 10 automobile accidents are due mainly to a speed violation; find the probability that among 8 automobile accidents 6 will be due mainly to a speed violation
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What is the wavelength corresponding to this frequency
: Cell phones operate in a frequency band around 850 MHz, output about 600 mW of transmitted power, and have a battery containing about 9720 J of energy. What is the wavelength corresponding to this frequency?
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