Looks good to me. Your turn!UTF8 U+6211 U+662F wrote:Adi1008 wrote:Suppose I have a bowling ball with a diameter of 25 centimeters. What is the largest mass it can have such that it floats in corn syrup (specific gravity = 1.4)?
Hovercraft B/C
 Adi1008
 Moderator
 Posts: 494
 Joined: December 6th, 2013, 1:56 pm
 Division: Grad
 State: TX
 Pronouns: He/Him/His
 Location: Austin, Texas
 Has thanked: 17 times
 Been thanked: 16 times
Re: Hovercraft B/C
University of Texas at Austin '22
Seven Lakes High School '18
Beckendorff Junior High '14
Seven Lakes High School '18
Beckendorff Junior High '14

 Exalted Member
 Posts: 1523
 Joined: January 18th, 2015, 7:42 am
 Division: C
 State: PA
 Has thanked: 1 time
 Been thanked: 1 time
Re: Hovercraft B/C
All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?
 Adi1008
 Moderator
 Posts: 494
 Joined: December 6th, 2013, 1:56 pm
 Division: Grad
 State: TX
 Pronouns: He/Him/His
 Location: Austin, Texas
 Has thanked: 17 times
 Been thanked: 16 times
Re: Hovercraft B/C
UTF8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?
a. [math]\int^{b}_{a} v(t) dt[/math] b. [math]\int^{b}_{a} v(t) dt[/math]
University of Texas at Austin '22
Seven Lakes High School '18
Beckendorff Junior High '14
Seven Lakes High School '18
Beckendorff Junior High '14

 Exalted Member
 Posts: 1523
 Joined: January 18th, 2015, 7:42 am
 Division: C
 State: PA
 Has thanked: 1 time
 Been thanked: 1 time
Re: Hovercraft B/C
Adi1008 wrote:UTF8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?a. [math]\int^{b}_{a} v(t) dt[/math] b. [math]\int^{b}_{a} v(t) dt[/math]
Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)
 Adi1008
 Moderator
 Posts: 494
 Joined: December 6th, 2013, 1:56 pm
 Division: Grad
 State: TX
 Pronouns: He/Him/His
 Location: Austin, Texas
 Has thanked: 17 times
 Been thanked: 16 times
Re: Hovercraft B/C
Suppose you have a contracting star whose new radius is 1/x as big as the old radius.UTF8 U+6211 U+662F wrote:Adi1008 wrote:UTF8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?a. [math]\int^{b}_{a} v(t) dt[/math] b. [math]\int^{b}_{a} v(t) dt[/math]Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)
a. How much faster does the star spin?
b. By what factor does its rotational kinetic energy change?
University of Texas at Austin '22
Seven Lakes High School '18
Beckendorff Junior High '14
Seven Lakes High School '18
Beckendorff Junior High '14

 Member
 Posts: 225
 Joined: February 12th, 2017, 8:06 am
 Division: B
 State: NY
 Location: somewhere over the rainbow
 Has thanked: 0
 Been thanked: 0
Re: Hovercraft B/C
a. x^2 fasterAdi1008 wrote:Suppose you have a contracting star whose new radius is 1/x as big as the old radius.UTF8 U+6211 U+662F wrote:Adi1008 wrote:a. [math]\int^{b}_{a} v(t) dt[/math] b. [math]\int^{b}_{a} v(t) dt[/math]Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)
a. How much faster does the star spin?
b. By what factor does its rotational kinetic energy change?
b. x^2
2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics
R.C Murphy CoCaptain
Dank Memes Area Homeschool Team member
R.C Murphy CoCaptain
Dank Memes Area Homeschool Team member

 Exalted Member
 Posts: 1523
 Joined: January 18th, 2015, 7:42 am
 Division: C
 State: PA
 Has thanked: 1 time
 Been thanked: 1 time
Re: Hovercraft B/C
It's been a while, so I guess I'll ask a question.
Consider a basketball player throwing a ball into the hoop. The ball is 625 g, and the basketball player throws it at 10 m/s at 65 degrees to the horizontal. Neglect air resistance.
1) Find the force that acts on the ball once it leaves the player's hand.
2) A regulation height hoop is 10 feet tall. Find the distance from the hoop he needs to be if he shoots the ball from just above his head and he is 1.8 m tall.
Edit: Wait hovercraft is being replaced next year
Consider a basketball player throwing a ball into the hoop. The ball is 625 g, and the basketball player throws it at 10 m/s at 65 degrees to the horizontal. Neglect air resistance.
1) Find the force that acts on the ball once it leaves the player's hand.
2) A regulation height hoop is 10 feet tall. Find the distance from the hoop he needs to be if he shoots the ball from just above his head and he is 1.8 m tall.
Edit: Wait hovercraft is being replaced next year
 Nydauron
 Exalted Member
 Posts: 45
 Joined: March 20th, 2018, 8:10 pm
 Division: Grad
 State: IL
 Pronouns: He/Him/His
 Location: In isolation in the deepest darkest place in my house
 Has thanked: 52 times
 Been thanked: 23 times
Re: Hovercraft B/C
UTF8 U+6211 U+662F wrote:It's been a while, so I guess I'll ask a question.
Consider a basketball player throwing a ball into the hoop. The ball is 625 g, and the basketball player throws it at 10 m/s at 65 degrees to the horizontal. Neglect air resistance.
1) Find the force that acts on the ball once it leaves the player's hand.
2) A regulation height hoop is 10 feet tall. Find the distance from the hoop he needs to be if he shoots the ball from just above his head and he is 1.8 m tall.
Edit: Wait hovercraft is being replaced next year
1) The forces that are acting on the ball once the ball leaves the player’s hand is just the force of gravity.
2)
Since the velocity is negative at 1.7 seconds, will be used to find the distance in the x direction.
When you've hit rock bottom, the only way to go is up.
Conant '19
UIUC '23
Member of The Builder Cult
2018 State  2nd MTV  3rd Hovercraft
2019 State  5th MTV  5th Sounds
Physics is the only real science
Change my mind
Nydauron's Userpage
Conant '19
UIUC '23
Member of The Builder Cult
2018 State  2nd MTV  3rd Hovercraft
2019 State  5th MTV  5th Sounds
Physics is the only real science
Change my mind
Nydauron's Userpage

 Exalted Member
 Posts: 1523
 Joined: January 18th, 2015, 7:42 am
 Division: C
 State: PA
 Has thanked: 1 time
 Been thanked: 1 time
Re: Hovercraft B/C
Okay, hovercraft is gone next year, so I guess there won't be any more questions, but yep, that's right (interestingly, if you used 0.15 s, it would've given you the distance required if he wanted to shoot the basketball through the bottom of the hoop and out the top).Nydauron wrote:UTF8 U+6211 U+662F wrote:It's been a while, so I guess I'll ask a question.
Consider a basketball player throwing a ball into the hoop. The ball is 625 g, and the basketball player throws it at 10 m/s at 65 degrees to the horizontal. Neglect air resistance.
1) Find the force that acts on the ball once it leaves the player's hand.
2) A regulation height hoop is 10 feet tall. Find the distance from the hoop he needs to be if he shoots the ball from just above his head and he is 1.8 m tall.
Edit: Wait hovercraft is being replaced next year1) The forces that are acting on the ball once the ball leaves the player’s hand is just the force of gravity.
2)
Since the velocity is negative at 1.7 seconds, will be used to find the distance in the x direction.
Who is online
Users browsing this forum: No registered users and 1 guest