A projectile is shot from the edge of a cliff 115 m above ground level with an initial speed of vo = 59 m/s at an
angle of 35.0 with the horizontal, as shown in the figure
(Figure 1).
Part A
Determine the time taken by the projectile to hit point P at ground lovel.
Express your answer to three significant figures and include the appropriate units.
HÅ
?
Value
Units
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Figure
1 of 1
Part B
fo
Determine the distance X of point P from the base of the vertical clift.
Express your answer to three significant figures and include the appropriate units.
135.0
?
h = 115 m
X - Value
Units
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A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

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