Reference no: EM131008074
1- Can you ride your bike on a circular highway at constant speed? How about at constant velocity? Explain the difference.
2- Two balls (red and black) are set to roll on opposite sides of a meter stick (each number is a centimeter). A camera is installed and it is set so that it takes one picture every three seconds starting at time t = 0 sec, when the balls begin to roll..
The superimposition of the images looks like this:
a- Is the black ball accelerating? Why?
b- Is the red ball accelerating? Why?
c- What are the average speeds of the black ball and that of the red ball?
d- What is the position on the ruler of the black ball at t = 7.5 seconds?
e- And that of the red ball?
3- A cyclist travels 28 kilometers in 20 minutes. Calculate the average speed of the cyclist in meters per second
4- A car accelerates, at a uniform rate of acceleration, from 0 km/h to 84 km/h in twelve seconds
What is this car's acceleration? Give your answer in both km/hour/sec and m/second2
5- Consider a situation with similar setup as in problem 2. Here the pictures are taken once every second, starting at t = 0 sec, both balls start at time t = 0, from x = 0 and from rest.
a- Is the black ball accelerating? Why?
b- What about the red ball? Is it accelerating?
c- What is the acceleration of the black ball? (Hint assume the acceleration is constant)
d- What is the acceleration of the red ball?
|
Refer to the data provided in the previous exercise
: Prepare the cash flows from operating activities section of the statement of cash flows for Clear Transmissions Company using the indirect method.
|
|
What is the fastest speed that the motor can lift kenny
: Kenny is dropped into a volcano. Stan and Kyle try to use a lift to save Kenny from rising lava. The efficiency of the motor is 0.4 and Kenny has a weight of 40kg. In order to save him, they must lift him 50 meters in 15 seconds. What is the faste..
|
|
Values for liquid assets
: Their year-end financial reports for the final five years of independent operation give the following values for their liquid assets (Source: The Financial Times).
|
|
Present cash flows from operating activities
: Prepare the statement of cash flows of Red, Inc., for the year ended December 31, 2011. Present cash flows from operating activities by the direct method.
|
|
Is the black ball accelerating why explain
: Two balls (red and black) are set to roll on opposite sides of a meter stick (each number is a centimeter). Is the black ball accelerating? Why? Is the red ball accelerating? Why? What are the average speeds of the black ball and that of the red ball
|
|
Find the stationary points and determine their nature
: Find the stationary points and determine their nature of the following function: f (x, y) = x3 + y2 - 3x + 4y + 2. Sketch the region of integration and evaluate the integral: 0∫2 0∫√(4-x^2) x2y dy dx.
|
|
List the four characteristics of an ideal fluid
: For this problem, assume that all fluids are ideal. List the four characteristics of an ideal fluid: Find the velocity of the fluid in Section 2 of the pipe. The velocity of the fluid in Section 1 of the pipe is 10 meters per second
|
|
Estimate frequency of wind and give practical interpretation
: The temperature adjusted for wind chill is a temperature that tells you how cold it feels. Estimate fw (20, 20) and give a practical interpretation. Estimate fT (15, 15) and give a practical interpretation.
|
|
Seasonal dummy variables
: a) Based on the description of these data, what time series components can you identify? b) If you identified a seasonal component, what is the period? c) If you use seasonal dummy variables, specify the dummy variables you would use.
|