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OLEGan [10]
3 years ago
9

Newton's 3rd law is also known as the law of

Physics
1 answer:
Molodets [167]3 years ago
7 0

Explanation:

<h3>Newton's 3rd law is also known as</h3>

<h3> • The law of action and reaction</h3>
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Consider the free-body diagram. Assume there is a net force of 30N to the right and the friction force equals 20N. What is the a
oksano4ka [1.4K]

Answer:the answer would be C.50N

Explanation:I just took the test

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4 years ago
In how many ways can chemical reaction takes place? what are they?​
suter [353]

Answer:

Chemists classify chemical reactions in a number of ways: by type of product, by types of reactants, by reaction outcome, and by reaction mechanism. Often a given reaction can be placed in two or even three categories, including gas-forming and precipitation reactions.

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3 years ago
What are the SI units for distance and time?
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distance is meters, time is seconds

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3 years ago
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Annealing is a process by which steel is reheated and then cooled to make it less brittle. Consider the reheat stage for a 100-m
ipn [44]

Answer:

The answer to the question is;

The plate be left in the furnace for 905.69 seconds.

Explanation:

To solve the question, we have to check the Bi number as follows

Bi = \frac{hL}{k}  = \frac{250\frac{W}{m^{2} K} *0.05 m}{48\frac{W}{mK} }  = 0.2604

As the Bi number is > 0.1 we have to account for the variation of temperature with location in the mass.

We perform nonlumped analysis

The relation for heat transfer given by

Y =  \frac{T_f-T_{inf}}{T_i- T_{inf}}

=\frac{550-800}{170- 800} = 0.3968 = C₁ exp (ζ₁² F₀)  

where

C₁ and ζ₁ are coefficients of a series solution

We therefore look for the values of C₁ and ζ₁ from Bi tables to be

ζ₁ = 0.4801 +(0.26-0.25) (0.5218-0.4801)/(0.3-0.25) ≈ 0.4884 and

C₁ = 0.4801 +(0.26-0.25) (1.0450 - 1.0382)/(0.3-0.25) ≈ 1.03956 and  

This gives the relation

0.3968 = 1.03956 exp (ζ₁² F₀)  

or ζ₁² (\frac{\alpha t}{L^2})

where

α = Thermal diffusivity of solid = k/(ρ·c_p) = \frac{48}{7830*550} = 1.1146×10⁻⁵

c_p = Specific heat capacity of solid at constant pressure = 550 J/kg·K

ρ = Density of the solid = 7830 kg/m³

=㏑(\frac{0.3968 }{1.03956 }) = -0.9631 from where we have

t = \frac{0.9631 *0.05^{2} }{0.4884^2*1.11*10^{-5}}  = 905 seconds.

3 0
3 years ago
A carmaker has designed a car that can reach a maximum acceleration of 12 meters/second?. The car's mass is 1.515 kilograms. Ass
Rama09 [41]

Answer:

m₂ = 1.212 kg

Explanation:

m₁a₁ = F = m₂a₂

1.515(12) = m₂(15)

m₂ = 1.212 kg

8 0
3 years ago
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