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Eddi Din [679]
3 years ago
10

Consider the experiment of Problem 1.27, in which a frictionless puck is sliding straight across a rotating turntable through th

e center 0. (a) Write down the polar coordinates r, > of the puck as functions of time, as measured in the inertial frame S of an observer on the ground. (Assume that the puck was launched along the axis>= 0 at t = 0.) (b) Now write down the polar coordinates r', >'of the puck as measured by an observer (frame S') at rest on the turntable. (Choose these coordinates so that> and>' coincide at t = 0.) Describe and sketch the path seen by this second observer. Is the frame S' inertial

Engineering
1 answer:
Sveta_85 [38]3 years ago
7 0

Complete Question

The complete question is shown on the first uploaded image

Answer:

The solution to this question is on the second uploaded image

Explanation:

The explanation to this solution is on the second uploaded image as well

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Ammonia vapor becomes irritating to the<br> nose and throat at a concentration of<br> ___ppm
mr_godi [17]

Answer: Even low airborne concentrations (100 ppm) of ammonia may produce rapid eye and nose irritation.

8 0
3 years ago
How high a building could fire hoses effectively spray from the ground? Fire hose pressures are around 1 MPa. (It is also said t
Mrac [35]

Answer:

z_{2} = 91.640\,m

Explanation:

The phenomenon can be modelled after the Bernoulli's Principle, in which the sum of heads related to pressure and kinetic energy on ground level is equal to the head related to gravity.

\frac{P_{1}}{\rho\cdot g} + \frac{v_{1}^{2}}{2\cdot g}= z_{2}+\frac{P_{2}}{\rho\cdot g}

The velocity of water delivered by the fire hose is:

v_{1} = \frac{(300\,\frac{gal}{min} )\cdot(\frac{3.785\times 10^{-3}\,m^{3}}{1\,gal} )\cdot(\frac{1\,min}{60\,s} )}{\frac{\pi}{4}\cdot (0.3\,m)^{2}}

v_{1} = 0.267\,\frac{m}{s}

The maximum height is cleared in the Bernoulli's equation:

z_{2}= \frac{P_{1}-P_{2}}{\rho\cdot g} + \frac{v_{1}^{2}}{2\cdot g}

z_{2}= \frac{1\times 10^{6}\,Pa-101.325\times 10^{3}\,Pa}{(1000\,\frac{kg}{m^{3}} )\cdot(9.807\,\frac{m}{s^{2}} )} + \frac{(0.267\,\frac{m}{s} )^{2}}{2\cdot (9.807\,\frac{m}{s^{2}} )}

z_{2} = 91.640\,m

7 0
3 years ago
River models are used to study many different types of flow situations. A certain small river has an average width and depth of
slavikrds [6]

Answer: 7ft x21 I’d be right but yes I am

Explanation: because it is Welty

4 0
3 years ago
What power must be in place when you first find an image in the microscope?
katrin [286]

Answer:

The correct answer is: The low power objective.

Explanation:

The low power objective can cover a large field of sight which is ver useful for analyzing several specimens or to inspect smaller ones.

This power also helps the microscope to get aligned and has a reach for the low objective of 10X.

3 0
3 years ago
When a specific property is multiplied by the mass of the system the results is always an intensive property. a)True b) False
german

Answer:

b). False

Explanation:

Thermodynamic property are of two types

1. Intensive property

2.Extensive property

Intensive properties are those properties that do not depend on mass. For example, Specific volume, temperature, specific heat capacity,density etc

       Extensive properties are those properties which depends on mass.

For example, volume, heat capacity, etc.

Now when a specific property (intensive property) is multiplied with mass of the system, we get extensive property .

We know that density is an extensive property having unit of kg per meter cube.

Now the reciprocal of density is specific volume which is also an extensive property having unit of  meter cube per kg.

Now if we multiply the specific volume with the mass we get volume which is an extensive property and not an intensive property.

Thus, we get extensive property when we multiply mass to any specific or intensive property.

6 0
3 years ago
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