Answer:
The answer to your question is Ke = 2240 J
Explanation:
Data
mass of the object = 20 kg
mass of the girl = 50 kg
speed = 8 m/s
Kinetic energy = Ke = ?
Formula
Ke = 1/2 mv²
Process
Kinetic energy is due to the movement of an object.
1.- Calculate the total mass
Total mass = 20 + 50 = 70 kg
2.- Substitution
Ke = 1/2(70)(8)²
3.- Simplification
Ke = 1/2(4480)
4.- Result
Ke = 2240 J
Answer:
About bonding
Explanation:
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bond.
An inert gas will not react with either the reactants or the products, so it will have no effect on the product/reactant ratio, and therefore, it will have no effect on equilibrium.
Answer:
False
Explanation:
The physical properties of melting point, boiling point, vapor pressure, evaporation, viscosity, surface tension, and solubility are related to the strength of attractive forces between molecules. These attractive forces are called Intermolecular Forces.
