What is the kinetic energy at its final position
As a 2.0-kg object moves from (2 i + 5 j)m to (6 i - 2 j)m, the constant resultant force acting on it is equal to (4 i - 3 j)N. If the speed of the object at the initial position is 4.0 m/s, what is its kinetic energy at its final position?
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What is the rpm of the fan three seconds after it is turned on? How many revolutions has it made at this time? What is the tip velocity of the blades at this time is the overall diameter is 12 inches?
Prove that the process is irreversible. In modeling this rocess treat the egg as the system and assume the passage of sufficient time for the egg to return to its inintial temperature.
If the frequency of the siren relative to the polive car is 500 Hz, what is the frequency heard by an observer in the truck as the police car approaches the truck? (Assume the velocity of sound in air is 343 m/s)
Determine the heat supplied to the air in the heat exchanger Q. H, in kW. Assuming the air in the heat exchanger acts as a heat sink having an average temperature of 25°C, determine the minimum power supplied to the heat pump, in kW.
You throw a ball horizontally off of a building with a horizontal velocity of 5m/s. What is the ball's horizontal velocity 8 seconds later? How high should the building be if you want the ball to fall for a total of 12 seconds?
In a chemcial analysis of a chromium alloy, all of the chromium is first converted to chromate ions. a 50ml sample of chromate ion solution is then reduced in a basic solution to chromium (lll) hydroxide by reaction with 22.6ml of 1.08mol/l sodium
At one instant of time the first particle with a charge of 4.20 uC is located at x = 0 and y = +7.40 cm, and the second particle with a charge of 2.00 uC is located at x = 0 and y = -7.40 cm.What is the y-component of the magnetic force on the fir
What could be the actual number of adults who play football could be? Among the 2286 repondents, 1479 said they only play hockey. What percentage of respondents said they only play hockey?
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Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Bearing in mind that there may be several, choose a social, behavioral, or cultural factor associated with your selected domestic violence
Based on information provided in Ch. 11 & 12, how do you define "being an adult"?
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
Think about where you were the most and least engaged when reading a classmate's draft. Think about what captured your attention
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,