Achef places sugar crystals in a cooking pan. he turns on the burner under the pan. in a few minutes, the sugar begins to melt. which process is most directly responsible for transferring heat from the burner into the sugar?
(2 points)
radiation
convection
conduction
resonance

The correct answer is conduction.

Explanation:

There are three methods of heat transfer.

(1) Conduction: It is the method of the transfer of the heat directly. There is no transfer of the matter.

(2) Convection:  It is the method of the transfer of the heat but not directly. There is transfer of the matter.

(3) Radiation: There is a transfer of heat from the solar energy.

In the given problem, a chef places sugar crystals in a cooking pan. He turns on the burner under the pan. In a few minutes, the sugar begins to melt.

Conduction process is responsible for transferring heat from the burner into the sugar. There will be no radiation and the convection process occur.

Therefore, the correct option is conduction.

volts times amps 6 x 0.5 3w

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s