I go with D .
Explanation:
I go with D because neither if the ballons have the same thermal energy.
Answer: When a material is heated or cooled, two changes may happen to the particles within the material: Chemical bonds between the particles may form, break or stretch. There is a change in the chemical potential store of energy in the material. The material will heat up or cool down as the particles within it gain or lose speed.
Explanation:
M×g+m×a=m×g×0,66. :m
g+a=g×0,66
a=g×0,66-g=g×(0,66-1)
a=9,81×(-0,34)=-3,3354
The acceleration is negative which means he is moving downward.
The force of Weight is F=m×g and you have to add m×a for the acceleration of the elevator.
Answer: The resultant displacement vector is 5.6km
Answer:
Convex and Virtual
Explanation:
A concave lens makes things appear smaller while a convex can make it magnified while being virtual. It appears right side up which makes it virtual.
Hope you do a good job!! :)