350 g 8N
با هم
500 g
12N
Based on the data in the table, which of the following is true?
OA.
All objects that are the same length require the same amount of force to move.
OB.
The greater the mass of an object, the greater the force required to move it.
OC.
The larger the object, the greater the force required to move it.
D.
The greater the mass of an object, the smaller the force required to move it.
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3 of 10 Answered

im pretty sure its b

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.