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A 500 g block is released from rest and slides down a frictionless track that begins 2.00 m above the horizontal. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 20.0 N/m

a) find the kinetic energy of the block at the bottom of the track

b) find the maximum distance the spring is compressed

Thanks :)

The four springs of a device each have a spring constant of 65.0 N/m. The hands holding the unstretched device are 43.5 cm apart. If the person cannot move his hands more than 80.0 cm apart, what is the maximum force each hand can exert?

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of .08 m. If the mass of the object is .20 kg, what is the spring constant?

I am having difficulty with the difference between movements and shifts in the demand curve.

Would there be a movement or shift in the demand curve if

a) a change in the price of a related good

b) a change in tastes

c) a change in the number of buyers

d) a change in price

e) a change in expectations

f) a change in income

Please let me know.

Thanks :)

What major themes/arguments did civil rights leaders use to appeal to the abolishing segregation and Jim Crow laws?

1) When you mix silver nitrate and and sodium chloride, what happens to the sodium nitrate that is formed?

2) Why do you rinse filter paper so often when filtering chemicals (with precipitates) and how would the amount that you yield be affected if you didn't rinse the filter paper?

Thanks :)

I have a paper where I need to label each sentence as either simple, compound, complex, or compound/complex. Some of the sentences don't fit the criteria for these types of sentences so I was wondering what they would fall under.

Most of the sentences are structured like this example,

The innocent and endearing scenes are now replaced with windowless sheds, inhumane devices, and cramped cages, stacked so close together, that it is enough to drive you insane.

Please let me know what type of sentence this example would be.

Thanks

If you had to give three levels of spoiled girls, what would they be.

Obviously the first level is the least materialistic and the third level is the worst of the worst, but what characteristics/ requirements would be put for each group? This is simply an opinion, there is no right answer.

What are examples in the novel that need the readers to reject face value to understand.

Like what do we as readers have to look deeper in the novel to understand?

Thanks

I need to know what daily life was like during the Ming Empire? I need detail like...

What they ate

What jobs there were

Trade

Past times

You get the picture. Plus if you got the information off of a website, please include it. THANKS :)

May rides her bike the same distance that Leah walks. May rides her bike 10km/h faster than Leah walks. If it takes May 1 hour and Leah 3 hours to travel the distance, how fast does each travel?

Please show your steps. THANKS

A passenger train's speed is 60 mi/hour and a freight train's speed is 40 mi/hour. The passenger train travels the same distance in 1.5 hours less time than the freight train. How long does each train take to make the trip?

Please show the process for solving it

THANKS

Can someone give me three examples of cultural change in early civilization and two examples of cultural diffusion today?

Thanks :)

I can serve overhand but they dont always go over. I can do another serve that works 99% of the time, but i don't know if it is illegal in high school volleyball. What i do is i curl my fingers in (but not into a fist) and hit the ball with the heel of my hand. The problem is that it does look like i am punching the ball and i want to know if i am actually punching the ball and is it a legal hit in high school volleyball.

ok so i posted a video on you tube that is a trailer for something. everyone elses videos for the trailer have had at least one view, but mine hasn't. IT HAS NOTHING to do with that no one wants to watch my video, but i think some setting is messed up or turned off. If anyone knows why the trailers i am posting arent being watched, please let me know. (AND IT AGAIN has nothing to do with noone wanting to watch it)

if a phone plan is $25 for 100 minutes plus $.50 for each extra minute, what would be the equation that would represent any number of minutes?

If I have the problem 1055=350x-(700+155x) what is x? I need a process to see how u got the answer. thanks

I need real scientific answers not just guesses. And please try to give me more than 1 answer THANKS :)

what is 4747561509943*1099511627776

dont put the E after the number (cuz it will be long enough) because i dont know what that means....or u can give any number to me and explain the E or whatever symbols u have. THANKS

I just read the the September '08 issue of Seventeen and i noticed that Miley was wearing such a cute outfit (the one with the yellow strapless dress) i was wondering if anyone had the magazine and could tell me what she was wearing or give me an outfit (and the store i can get it at) that looks almost exactly like it for a cheaper price.