Who Is Good At Physics?

[98silvz71]

I have a few questions that I do not know how to do because when I go to put the answer in it says its wrong. Can anyone help me?!

 

Q1: A woman rides on a Ferris wheel of radius 16 \rm m that maintains the same speed throughout its motion. To better understand physics, she takes along a digital bathroom scale (with memory) and sits on it. When she gets off the ride, she uploads the scale readings to a computer and creates a graph of scale reading versus time. View Figure Note that the graph has a minimum value of 510 \rm N and a maximum value of 666 \rm N .

 

 

Q2: An old-fashioned vinyl record rotates on a turntable at 59 rpm. What are (a) the angular speed in rad/s and (b) the period of the motion?

 

Q3: To withstand "g-forces" of up to 10 g's, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a "human centrifuge." 10 g's is an acceleration of 98\;{\rm m}/{\rm s}^{2}. If the length of the centrifuge arm is 14 m, at what speed is the rider moving when she experiences 10 g's?

 

Q4: A 1500 kg car takes a 50-m-radius unbanked curve at 15 m/s. What is the size of the friction force on the car?

 

Q5: You're carrying a 3.2-m-long, 21 {\rm kg} pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 {\rm cm} from its tip. How much force must you exert to keep the pole motionless in a horizontal position?

 

Q6: Experiments using "optical tweezers" measure the elasticity of individual DNA molecules. For small enough changes in length, the elasticity has the same form as that of a spring. A DNA molecule is anchored at one end, then a force of 1.5\;{\rm nN} (1.5\times10^{-9}\; {\rm N}) pulls on the other end, causing the molecule to stretch by 5.0\;{\rm nm} (5.0\times10^{-9}\; {\rm m}). What is the spring constant of that DNA molecule?

 

Any or all help is appreciated.

[Zembonez]

Any or all help is appreciated.

The answer is:

 

7 beers, a fat woman, and a kangaroo on a pogo stick.

[98silvz71]

Any or all help is appreciated.

The answer is:

 

7 beers, a fat woman, and a kangaroo on a pogo stick.

 

 

Thats what I said and it actually wrote back DUMBASS. I was pissed!

[Zembonez]

Any or all help is appreciated.

The answer is:

 

7 beers, a fat woman, and a kangaroo on a pogo stick.

 

 

Thats what I said and it actually wrote back DUMBASS. I was pissed!

 

LOL... what can you expect from a Crazy Clown?

[Zembonez]

As I remember, Physics is a pretty intense class.

[98silvz71]

As I remember, Physics is a pretty intense class.

 

Nah, this is just intro to physics and I'm only havin problems cause he went over the material in about a day.

[hubbycap]

Q3: To withstand "g-forces" of up to 10 g's, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a "human centrifuge." 10 g's is an acceleration of 98\;{\rm m}/{\rm s}^{2}. If the length of the centrifuge arm is 14 m, at what speed is the rider moving when she experiences 10 g's?

 

Isn't that the most precious thing you've ever read.

[dlstewart01]

If it takes a man and a half a day and a half to dig a hole and a half, how long will it take a monkey with a wooden leg to kick all the seeds out of a cuecumber???????

 

Don

[hubbycap]

As I remember, Physics is a pretty intense class.

 

Nah, this is just intro to physics and I'm only havin problems cause he went over the material in about a day.

 

 

Cam, I know that you've posed these questions in a serious tone, sorry to make light of it. Question: Yes I know there are a couple of engineer-types (not me) in here, but did you really believe that this crowd would be of much help on this?

[98silvz71]

As I remember, Physics is a pretty intense class.

 

Nah, this is just intro to physics and I'm only havin problems cause he went over the material in about a day.

 

 

Cam, I know that you've posed these questions in a serious tone, sorry to make light of it. Question: Yes I know there are a couple of engineer-types (not me) in here, but did you really believe that this crowd would be of much help on this?

 

 

These are take home test questions and I was desperate. And thats what I said. But I was hopin that they would show their magic for me.

[hubbycap]

As I remember, Physics is a pretty intense class.

 

Nah, this is just intro to physics and I'm only havin problems cause he went over the material in about a day.

 

 

Cam, I know that you've posed these questions in a serious tone, sorry to make light of it. Question: Yes I know there are a couple of engineer-types (not me) in here, but did you really believe that this crowd would be of much help on this?

 

 

These are take home test questions and I was desperate. And thats what I said. But I was hopin that they would show their magic for me.

 

 

 

Man, I'm rootin' for you. C'mon smart guys! I've read a bunch of smart ass answers in here, just today!

[Zembonez]

I've read a bunch of smart ass answers in here, just today!

Fred... I'm shocked that you might think that!

 

If I were Cam, I'd be googling my ass off right now with a beer in hand.

[hubbycap]

I've read a bunch of smart ass answers in here, just today!

Fred... I'm shocked that you might think that!

 

If I were Cam, I'd be googling my ass off right now with a beer in hand.

 

 

 

Or a highball.

[ZZ327]

I never had to take a physics class, So just put your feet up on the desk and answer TRUE.

[carneyman]

Man, if you get answers to this, I'm gonna post some of my take home physics test questions...who here took E & M or thermo?