When you rub a balloon on a sweater, for example, some electrons come off and end up on the balloon. The fibers have lost electrons giving them a positive charge. The rubber gained electrons giving it a negative charge. ... The positively charged fibers are now attracted to the negatively charged balloon.
Transpiration is the evaporation of water from plants. This occurs when water drawn from the roots is brought up the leaves (as it usually should), and, because of the outside heat, it vaporizes and exits via the pores found on the underside of the leaves.
Answer:
The rate of work is 360 W
Explanation:
Given:
Speed of block 
Upward acceleration of block 
Mass of block 
kg
First Find the force act on block due to gravity
Where 
N
For finding at what rate motor doing work when it is pulling the block upward,
W
Therefore, the rate of work is 360 W
Molten minerals inside earth is the source
Answer:
1.3 g/cm³
Explanation:
The mass of the paint without the tin or lid is:
7 kg − 0.5 kg = 6.5 kg = 6500 g
Density is mass per volume:
d = 6500 g / 5000 cm³
d = 1.3 g/cm³
