How long did ball interact with the bat
A 146 g ball moving at -23 m/s is hit by a bat. The ball moves in the opposite direction at 14 m/s. How long did it interact with the bat if the average force was 210 N. Don't forget to include units.
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A spring-mass-damper system is subjected to a harmonic force. The amplitude is found to be 20mm at resonance and 10mm at a frequency 0.75 times the resonance frequency. Find the damping ratio in the system?
The wire is at room temperature. A potencial difgerence of 5.0 V is maintened between the ends of the 2.0-m composite wire.what is the potencial difference between the ends of the silver section of wire ?
You plan to invest $200,000 in stocks on the Toronto Stock Exchange. If you invest $2000 in any particular stock, your profit will be $400, $200, $0 or -$200 (a loss) with probability 0.25 each. There are 100 different stocks you can choose from,
The water is at constant pressure. the process stops when the volume has doubled. How do you determine the final state and the heat transfer?
A truck travels on rails round a curve of 100m radius at a speed of 90km/h, the truck has a total mass o 4ton and its centre of gravity is midway between the axles, 1.05m above the ground and midway between the rails.
The player plays a series of games which ends when the player successfully chooses the winning icon. For such a series of games, find (a) the probability that the player's total score is negative. (b) the expected total score.
A spring is mounted from the ceiling. As a mass is attached, the spring stretches 1.04 m. The spring is then stretched an additional 0.2 m and released. What will be the frequency of the resulting oscillation? Your answer should be given to the ne
It is heated to 140 F, at which point the specific volume is 0.4413 ft^3/lbm. Find the final pressure, the work, and the heat transfer in the process.
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Encourage children to explore, experiment and take risks through planning and providing learning environments and opportunities
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