Answer:
The volume of water evaporated is 199mL
Explanation:
Concentration is calculated with the following formula

where n is the number of moles of solute and V is the volume of the solution (in this case is the same as the solvent volume) in liters.
So we isolate the variable n to know the amount of moles, using the volume given in liters


Now, we isolate the variable V to know the new volume with the new concentration given.

Finally, the volume of water evaporated is the difference between initial and final volume.

Answer:
No
Explanation:
Electric potential is the work done to bring a unit of charge (1 C) from infinity to a point inside an electric field.
Electric potential energy of a charge q is the energy required to keep it in an electric potential V. Electric potential energy is given by,
U = qV
Hence even if the two charges are on an equipotential surface (surface where the potential is the same at all points), the potenial energy will be different if the magnitude or nature of the charges are different.
30 30 30 30 30 30 30 30 30 30
Answer:
6.78571 m/s
55.13387 Joules
Explanation:
= Velocity of squid = 2.5 m/s
= Velocity of water
= Mass of water = 1.75 kg
Mass of squid

Momentum of squid

As the momentum of the system is conserved

The speed of the water is 6.78571 m/s
Kinetic energy the squid creates is given by
Kinetic energy of the squid + Kinetic energy of water

Kinetic energy the squid creates by this maneuver is 55.13387 Joules