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skelet666 [1.2K]
3 years ago
12

What is the pressure exerted on three floor by a 10.000N crate if the bottom of the crate has the dimensions of 1/2m by 4m

Physics
1 answer:
Fantom [35]3 years ago
6 0

Answer:

fine the area then devide force by area

Explanation:

10000/(0.5*4)= 5000 pa

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A helicopter (m = 3250 kg) is cruising at a speed of 56.9 m/s atan altitude of 185 m. What is the total mechanical energy of the
taurus [48]

Answer:

The mechanical energy of the helicopter is 1.12\times 10^7\ J.

Explanation:

It is given that,

Mass of the helicopter, m = 3250 kg

Speed of the helicopter, v = 56.9 m/s

Position of the helicopter, h = 185 m

The energy possessed by an object due to its motion is called its kinetic energy. It is given by :

E=\dfrac{1}{2}mv^2

E=\dfrac{1}{2}\times 3250\times (56.9)^2  

E=5.26\times 10^6\ J

The energy possessed by an object due to its position is called its potential energy. It is given by :

E=mgh

E=3250\times 9.8\times 185  

E=5.89\times 10^6\ J

The sum of kinetic and potential energy is called mechanical energy of the system. It is given by :

M=5.26\times 10^6+5.89\times 10^6

M=11.15\times 10^6\ J

or

M=1.12\times 10^7\ J

So, the mechanical energy of the helicopter is 1.12\times 10^7\ J. Hence, this is the required solution.

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3 years ago
17. If a good is a luxury, what type of response will it cause?
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Location X is next to Location Y and they are both much colder than Location Z. Which statement is most likely true?
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English or metric <br> What is 16in to cm
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A black lift of amber is placed in water and a laser beam travels from the water through the amber. The angle of incidence is 35
horsena [70]

Answer:

Explanation:

refractive index of ember = sin of angle of incidence / sin of angle of refraction

= sin 35 / sin24

= .5735 / .4067

= 1.41

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refractive index of ember with respect to water

= wμe = μe / μw

μe = wμe x  μw

= 1.33 x 1.41

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refractive index of ember with respect to air = 1.87 .

6 0
3 years ago
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