Work=force*distance.
Force= (9.8x45) because that's the force of her weight.
Distance is 3 m. (given)
work=(9.6x45)(3)=1323 joules
Answer:
1. Some molecular substances are electrolytes
Explanation:
Electrolytes are electrically conducting solutions when dissolved in water and are found in cells .
In this case , all molecular substances can’t be electrolytes
Not all electrolytes are ionic. They could be ionic or covalent.
A strong electrolyte is known for its complete ionization in water and not for anything partial.
Answer:
0 J
Explanation:
The mass is not moving, therefore the kinetic energy is 0.
(I had this same question and the answer is 0)