Almost right. protons are positive and electrons are negative. so when you run the balloon on your hair, electrons are transferred between them (i’m not sure which direction) and now one is positively charged as it lost negative particles and one is negative as it gained negative particles (electrons). opposite charges attract
Answer:b.20.8L
Explanation:
Since pressure is constant we can use the equation V1/T1 = V2/T2
(20/250)=(x/260)
5200=250x
X=20.8
Answer:
B
Explanation:
Transformation of energy involves conversion of energy from one form to another for example our movement around involves the conversion of chemical energy stored in the food we eat to other forms of energy such as kinetic energy for the movement, electrical energy in the neurons for impulses and others
The ball posses gravitational potential energy since it is held at a displacement to the ground ( zero point) and when released, the gravitational potential energy is converted to kinetic energy which leads to the fall of the ball until it is at zero displacement to the earth. The board likewise when bent to its maximum extent stored elastic potential energy as a result of the partial displacement of its constituent particle provided it is not stretch beyond its elastic limit which can lead to deformation of the board and the elastic potential energy lost.
Answer:
2.5m/s
Explanation:
Kinetic energy = 1/2 mv²
Mass = m= 8000kg
Velocity(speed) = v =
K. E = 24000J
K. E = 1/2 x 8000 x v²
24000 = 4000 x v²
Divide both sides by 4000
V²= 24000/4000
V² = 6
Find square root of both sides
V = √6
V = 2.5 m/s
The S. I unit of energy is joules with symbol J
I hope this was helpful, Please mark as brainliest
