Trajectory based problem
A shell is fired at an angle of 20 degree above the horizontal at a velocity of 200 m/s a) what is the range? b) What is its velocity at highest point of the trajectory?
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An airplane used to drop water on bushfire is flying horizontally in a straight line at 180 mi/h at altitude of 300 ft. Determine the distance d at which the pilot should release the water so that it will hit the fire at B.
A 100 kg car travelling at 20 m/s collides with a 100 kg car traveling at 8 m/s in opposite direction, a) if the two cars stick together , what is their final velocity ? b) how much kinetic energy is lost ? c) What percentage of the original kinet
In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples of population members that might have been omitted.
BC Company uses a job order cost accounting system. During the month of April, the following events occurred.Raw materials requisitioned: $25,800 as direct materials and $10,500 indirect materials.
There are 10 steps leading up to the library entrance. You walk up the stairs taking 1 step at a time, 2 steps at a time, or some combination of 1 and 2 steps. How many ways are there to go up the steps?
Determine the maximum height h achieved, the total flight time t, the net horizontal displacement x from point A, and plot the entire trajectory.
A 1.5 kg object initially at rest is raised to a height of 10 m by a force of 40 N. What is the velocity of the object at this height ? What time is needed for this motion ? What is the total work done by external force ?
1) Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard deviation of 15. Find P15, which is the IQ score separating the bottom 15% frm the top 85?
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