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dimaraw [331]
3 years ago
6

Abid is the hare who runs fast and takes long rest while Gautam runs slow but takes short rest. Abid can run at 5 ms−1 while Gau

tam runs at 3 ms−1 . Abid has to take a 10s break after running 20s. But Gautam can take a 10s break after 90s. They are running a 1km (1000 m) race. What is the time difference between winner and loser? (Write the value in seconds upto nearest whole number)
Physics
1 answer:
dalvyx [7]3 years ago
3 0
Guatam is the fastest the other was the slowest
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A hydraulic press must be used to press-fit two components together in an assembly process. the system must generate at least 77
Kobotan [32]
The pressure generated by the piston at the input cylinder must be:

p = F / A = 250 lb-f / 30 in^2


The pressure generated by the piston at the output cylinders is p = F / A = 775 lb-f / A.


Pascal principle rules that both pressures are equal, so:


250 lb-f / 30 in^2 = 775 lb-f / A => A = 775 lb-f * 30 in^2 / 250 lb-f = 93 in^2


Gvien that each output cylinder are 30in^2 you need 93 / 30 = 3.1 cylinders.


Which means that at least you need 4 cylinders to generate a force at least of 775 lb-f.


Answer: 4
8 0
3 years ago
I will give Brainliest please help!​
mote1985 [20]

Answer:

A) Golgi apparatus

Explanation:

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3 0
2 years ago
A 730-keV gamma ray Compton-scatters from an electron. Find the energy of the photon scattered at 120°, the kinetic energy of th
romanna [79]

Answer:

Energy of scattered photon is 232.27 keV.

Kinetic energy of recoil electron is 497.73 keV.

The recoil angle of electron is 13.40°

Explanation:

The energy of scattered photon is given by the relation :

E_{2}=\frac{E_{1} }{1+(\frac{E_{1} }{m_{e}c^{2}  })(1-\cos\theta) }     .....(1)

Here E₁ is the energy of incident photon, E₂ is the energy of scattered photon, m_{e} is mass of electron and θ is scattered angle.

Substitute 730 keV for E₁, 511 keV for m_{e} and 120° for θ in equation (1).  

E_{2}=\frac{730 }{1+(\frac{730 }{511  })(1-\cos120) }

E₂ = 232.27 keV

Kinetic energy of recoil electron is given by the relation :

K.E. = E₁ - E₂ = (730 - 232.27 ) keV = 497.73 keV

The recoil angle of electron is given by :

\cot\phi=(1+\frac{E_{1} }{m_{e}c^{2}  })\tan\frac{\theta}{2}

Substitute the suitable values in above equation.

\cot\phi=(1+\frac{730 }{511  })\tan\frac{120}{2}

\cot\phi=4.20

\phi = 13.40°

8 0
2 years ago
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andreyandreev [35.5K]
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3 years ago
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Yes, light enters your eye and makes things visible. It's only a small portion of the elctromagnetic spectrum. It's called "visible light." What other things does the question want to know? I could go in a describe what light really is but I think itd be unnecessary.

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