an elastic cord 61 cm long when a weight of 75N hangs from it, but 85cm when a weight of 210N hangs from it. what is the spring constant of the cord
Solved
Show answers
More tips
- S Society and Politics What Would Brezhnev Do If He Were Alive Today?...
- S Style and Beauty Choosing a Hair Straightener: Specific Criteria to Consider...
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- S Sport How to Do a Jumping Split...
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- F Family and Home How to Properly Fold Napkins in a Napkin Holder?...
- F Food and Cooking How to Set Up Ventrilo - The Ultimate Guide...
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
- A Auto and Moto Battle for the Relocation of The Cherkizovsky Market: Who Won?...
Answers on questions: Physics
- P Physics Lucy needs to lift a crate to a shelf 20 m high. she does 12,000 j of work on a machine to her. the machine exerts a force of 500 n to lift the crate. what is the efficiency...
- P Physics If a wave has a frequency of 4 hz and a speed of 24 m/s, which is its wavelength?...
- P Physics Why is a baseball thrown by a pitcher considered to have projectile motion? it gains a lot of kinetic energy. it has horizontal and vertical motion. it gets pulled to the...
- P Physics The product of voltage times amperage is known as what? amperes current resistance power...
- P Physics Please help me on numbers 6 through 9 on the matching thank you so much...
- P Physics A particle executes simple harmonic motion with an amplitude of 2.18 cm. At what positive displacement from the midpoint of its motion does its speed equal one half of...
- P Physics Constant speed is the same thing as average speed...
- P Physics The similarity between intelligence scores of fraternal twins raised together is...
- P Physics Which one word defines newton’s first law of motion?...
- P Physics A cone of mass m is dropped so that it falls a distance h and then penetrates styrofoam placed on the ground. The magnitude of the styrofoam resisting force to penetration...
Ответ:
560 N/m
Explanation:
F = kx
75 N = k (0.61 m − L)
210 N = k (0.85 m − L)
Divide the equations:
2.8 = (0.85 − L) / (0.61 − L)
2.8 (0.61 − L) = 0.85 − L
1.708 − 2.8L = 0.85 − L
0.858 = 1.8L
L = 0.477
Plug into either equation and find k.
75 = k (0.61 − 0.477)
k = 562.5
Rounded to two significant figures, k = 560 N/m.
Ответ:
Comeon shakeyour‼️baby♂️dothat⚡️congaknowyou cant control‼️yourself anylonger