Physics, 03.12.2021 17:40 tednequamoore4307
A student fires a cannonball diagonally with a speed of 22.0m/s from a height of 42.0m as shown. Neglect drag. Determine all unknowns and answer the following questions.
How long did the ball rise?
What was the ball's maximum height above the ground?
How long did the ball remain in the air?
How far from the base of the building did the ball land?
How fast was the ball moving as it struck the ground?
At what angle (with the horizontal) did the ball land?
Calculate the magnitude of the angle between the final velocity vector and the nearest horizontal. Answers should be between 0 and 90°.
Please refer to the picture attached.
Answers: 2
Physics, 21.06.2019 16:00
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 2
Physics, 21.06.2019 18:00
Alivestock company reports that the mean weight of a group of young steers is 1100 pounds with a standard deviation of 93 pounds. based on the model n(1100,93) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1300 pounds? c) between 1150 and 1250 pounds?
Answers: 1
Physics, 21.06.2019 18:00
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Physics, 22.06.2019 14:30
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
A student fires a cannonball diagonally with a speed of 22.0m/s from a height of 42.0m as shown. Neg...
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