Which scenario is an example of the transfer of thermal energy by radiation? A. an hot air circulates in an oven

B. an ice cube melts in a persons hand

C. water boils in a pan

D. a frozen lake melts under the sun.

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

a skateboard rolling across the street - apex

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.