Question

please use Projectile simulator, for the Lab Projectile Motion in 2-D and answer question below

**14**. Solve for t. [Hint, you can factor one of
the variables.]

**15**. What is the smaller answer referring
to?

Given that your larger answer should be the time it takes to land,
use that in your x-position equation, i.e. rewrite your equation
for x, replacing t with what you got in #14.

**16**. How far does it travel in the x-direction
before it lands? Note you should still have θs involved.

The max distance reach on the X-displacement 163.27 (m) with the setting 40 m/s at 45-degree angle

Now finally, we have an equation for how far the ball travels purely as a function of the launch

angle θ! To wrap everything up, we need to consider what θ will give us a maximum value.

Looking at our equation, it seems like we might be right back to where we started, just trying to

plug in values to see what gives the highest value! However, we figure someone may have

thought about this before, so we consult our book of mathemagics, which tells us the following:

f will be at a maximum when sin(2θ) is at a maximum, as θ is the only variable in the equation.

**17.** What values does the sine function go in
between?

**18.** What angle causes the sine function to be
at this highest value?

**19.** If that angle is 2θ, then what would that
make θ?

Use the applet to check your answer does indeed give the launch angle that sends the projectile

the farthest.

**20**. What is the launch angle that makes a
projectile travel the farthest? How can you tell?

Answer #1

Use the simulation to answer the following questions.
- Open the PhET Projectile Motion Simulation (
https://phet.colorado.edu/en/simulation/projectile-motion) and use
it to answer the following questions:
1. For a given launch speed and no air resistance, what launch
angle causes the projectile to travel the furthest.
2. Turn on air resistance. Does air resistance influence the
angle you found in part 4? If so, how? (You may need to add quite a
bit of air resistance or set the mass...

A projectile motion (i.e. cannon) can be modeled via the
following equations: x=u cosθ t y=-0.5 g t^2+u sinθ t Where: x:
Position of the cannonball after t seconds in the x-direction
(meters) y: Position of the cannonball after t seconds in the
y-direction (meters) u: Initial velocity of the cannonball (meters
per second) g: Acceleration due to gravity (meters per second
squared) t: Time (seconds) In this question, we are trying to see
the effects of the angle ϴ...

The graph of
f(x)=−10x+e5sin(x)f(x)=−10x+e5sin(x)
is rotated counterclockwise about the origin through an acute
angle θθ. What is the largest value of θθ for which the rotated
graph is still the graph of a function? What about if the graph is
rotated clockwise?
To answer this question we need to find the maximal slope of
y=f(x)y=f(x), which is , and the minimal slope which
is .
Thus the maximal acute angle through which the graph can be rotated
counterclockwise is θ=θ= degrees.
Thus...

Please read through the article below and answer the
question at the end of the article.
High-Performing Teams Need Psychological Safety. Here’s How to
Create It
“There’s no team without trust,” says Paul Santagata, Head of
Industry at Google. He knows the results of the tech giant’s
massive two-year study on team performance, which revealed that the
highest-performing teams have one thing in common: psychological
safety, the belief that you won’t be punished when you make a
mistake. Studies show...

Read the LDC Cloud Systems Case Study and answer the
question below:
THE EMAIL
The email had been sent from one mid-level accounting manager at
headquarters to another about six months earlier. The message
read:
Bill, here are the accounting issues I mentioned, and as you
know, some of these go back a ways. The data that supports these
accounts are not always clear and keep changing, and we are not
sure what the correct accounting treatment is for these...

You may need to use the appropriate technology to answer this
question.
Consider the following data on price ($) and the overall score
for six stereo headphones tested by a certain magazine. The overall
score is based on sound quality and effectiveness of ambient noise
reduction. Scores range from 0 (lowest) to 100 (highest).
Brand
Price ($)
Score
A
180
76
B
150
69
C
95
63
D
70
56
E
70
38
F
35
28
(a)
The estimated regression...

You may need to use the appropriate technology to answer this
question.
Consider the following data on price ($) and the overall score
for six stereo headphones tested by a certain magazine. The overall
score is based on sound quality and effectiveness of ambient noise
reduction. Scores range from 0 (lowest) to 100 (highest).
Brand
Price ($)
Score
A
180
76
B
150
71
C
95
61
D
70
58
E
70
42
F
35
28
(a)
The estimated regression...

please answer and explain
Video Transcript:
Promoting Children's Health: A Focus on Nutrition in
Early Childhood Settings:
>> Our most important job is to keep the
children safe and healthy. And within keeping them healthy and
keeping them safe, we want to make sure that they are receiving
proper nutrition. So at this age, starting healthy habits, we want
to make sure that the preschool and kindergarten age children are
receiving all that we can give them when it comes...

A mountain climber of mass m=75.0 kg slips during a climb and
begins to fall freely. She forgot her rope and had to use an ideal
spring. The spring is hanging vertically with an unstretched
equilibrium position at the origin, x=0. On her descent, she grabs
the end of the spring which has a spring constant of k= 981 N/m.
Ignore friction, air resistance, and any other dissipative
effects.
a) The climbers velocity when she grabbed the spring was 20.0...

I post this question twice, please don't answer this post if you
already answer the other one, if you can answer different answer
that's fine. REASON WHY I POST IT TWICE, I NEED TWO
DIFFERENT VIEW.
Discussion
Hi All - this week you will learn about DNA - the molecule of
life! You may think that protein-coding genes are the most
important, but results from the Human Genome Project revealed that
only about 2% of our DNA codes for protein...

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