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Mnenie [13.5K]
3 years ago
9

A 0,9 -kg object attached to the end of a string swings in a vertical circle (radius = 75 cm). At the top of the circle the spee

d of the object is 6,5 m/s. What is the magnitude of the tension in the string at this position?
Physics
1 answer:
omeli [17]3 years ago
6 0
0.6 cm is the answer add it up and find the m/s hope this helps
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When an electron moves from a lower to a higher energy level the electron?
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A photon is absorbed

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A layer cake profile of different soil types is exposed when we dig into the earth. Geologists reason that these layers were lai
Len [333]

The layer cake profile of different soil types having older soil type at the bottom of the layer is proved by the law of superposition.

Explanation:

The literal meaning of the word superposition means arranging one over the other. So the first generation soil or rocks will be deposited first on the mantle followed by the coming generation of soils and rocks. Due to different kinds of disasters like tides, earthquake, soil erosion etc., the new soil or rocks coming from any other region will get deposited on the surface of the old soil layer just like a layer cake format.

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3 0
4 years ago
What is Nitrogens main function in the atmosphere?
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Hi , basically the atmosphere is made up of 78% of nitrogen, nitrogen is very special and important because if the air was just made up of oxygen the air that we breath would be very flammable and toxic .That's why we have nitrogen.
4 0
3 years ago
There has long been an interest in using the vast quantities of thermal energy in the oceans to run heat engines. A heat engine
adell [148]

Answer:

Explanation:

The maximum efficient power plant will be the plant based on carnot cycle whose efficiency is given by the following formula

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3 0
4 years ago
Suppose humans have weights which are normally distributed with mean 170 lbs and SD 50 lbs. If 400 humans are selected at random
MrRa [10]

Answer:

 P(x< 175)= 0.9772

Explanation:

given,

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By using central limit theorem,

P (x< 175)

P(x< 175)= P(z

P(x< 175)= P(z

P (x< 175)= P(z

P (x< 175)= P(z

using z-table

 P (x< 175)= 0.9772

hence, the probability that total weight is less tan 175 lbs is equal to

 P(x< 175)= 0.9772

7 0
3 years ago
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