Scenario Object 1
Object 2
A
Lotion at
27°C
Skin at
37°C
Indicate the direction of heat flow in each scenario.
Scenario A:
Scenario B:
Scenario C:
Scenario D:
B
Lasagna at
170°C
Plate at
20°C
С
Ocean water at
25°C
Lava at
950°C
D
Eggs at
2°C
Sidewalk at
80°C

i think the answer is a and b

i wish you luck

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

96.77 amp

explanation:

rl = 250/100 = 2.5 ohms.

egl = 250 + (100 × 0.1) + 2 = 262 v.

at 700 r.p.m., eg2 = 262 × 700/1000 = 183.4 v.

if ia is the new current, then eg2 - 2 - (ia × 0.1) = 2.5 ia

which means this will give ia = 96.77 amp.