<span>Density = mass/volume
10g/2mL=5g/mL
Atomic mass= protons + neutrons
Atomic number=protons
In a neutral atom, electrons = protons
15 amu-7 atomic number = 8 neutrons, 7 protons and 7 electrons</span>
Answer:
30.66 knots
Explanation:
Distance of ship A from B at noon = 50 NM
= Velocity of ship A = 22 knots = 22 NM/h
= Velocity of ship B = 23 knots = 23 NM/h
Distance travelled by ship A from noon to 3 PM = 22×3 = 66 NM
a = Total distance travelled by ship A = 50+66 = 116 NM
b = Total distance travelled by ship B till 3 PM = 23×3 = 69 NM
c = Distance between Ship A and B at 3 PM = √(116²+69²) = 134.97 NM
a²+b² = c² (Pythagoras theorem)
Now differentiating with respect to time
∴ The velocity with which the distance is changing at 3 PM (3 hours later) is 30.66 knots
Exothermic reactions are reactions that release energy.
Hope that helped you.
Explanation:
<em>The absolute threshold of hearing is the minimum sound level of a pure tone that an average human ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the organism.</em>
It's not the potential energy. It's just the potential.
It's greatest at the positive terminal of the battery or power supply.
