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IceJOKER [234]
2 years ago
9

How much force is required if the ramp is 15 ft long

Engineering
1 answer:
lord [1]2 years ago
6 0

Answer:

do yah stiil need help

Explanation:

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A thick steel slab ( 7800 kg/m3 , c 480 J/kg K, k 50 W/m K) is initially at 300 C and is cooled by water jets impinging on one o
Nutka1998 [239]

Answer:

1791 secs  ≈ 29.85 minutes

Explanation:

( Initial temperature of slab )  T1 = 300° C

temperature of water ( Ts ) = 25°C

T2 ( final temp of slab ) = 50°C

distance between slab and water jet = 25 mm

<u>Determine how long it will take to reach T2</u>

First calculate the thermal diffusivity

∝  = 50 / ( 7800 * 480 ) = 1.34 * 10^-5 m^2/s

<u>next express Temp as a function of time </u>

T( 25 mm , t ) = 50°C

next calculate the time required for the slab to reach 50°C at a distance of 25mm

attached below is the remaining part of the detailed solution

5 0
3 years ago
Can you solve this question​
Alecsey [184]

Answer:

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6 0
2 years ago
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Which group might be classified as a gang?
Furkat [3]

Answer:

The following criteria are commonly used for classifying groups as gangs: The group has three or more members, generally aged 12–24. Members share an identity, typically linked to a name, and often other symbols. Members view themselves as a gang, and they are recognized by others as a gang.

Explanation:

8 0
3 years ago
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A study of online dating found that when including emoticons in their profiles, response rates for female users _______ by _____
Dvinal [7]

Answer:

Increased, 5%

Explanation:

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8 0
2 years ago
If the channel-Length modulation effect is neglected, ID in the saturation region is considered to be independent of VDS
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The answer is true because if the effect is neglected, the saturation id region is considered true
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3 years ago
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