Density = Mass / Volume
1000 cm³ = 1 liter
1cm³ = 1/1000 liter = 1 ml
100 ml = 100 cm³
Density = 0.196 g / 100 cm³ = 0.00196 g/cm³
Answer:
The velocity at impact is 222.2 m/s
Explanation:
The given information are;
The time at which the woman heard the sound of the coin after dropping it into the wishing well = 30 seconds
The average speed of sound in air = 344 m/s
The time in which the dime travel = t₁
The time in which the sound travel = t₂
1/2 × 9.8 × t₁² = 344 × t₂
t₁ + t₂ = 30
4.9·t₁² = 344 × (30 - t₁)
4.9·t₁² + 344·t₁ - 10320 = 0
Which gives -344±
t₁ = 22.676 seconds or -92.9 seconds
Therefore the correct natural time is t₁ = 22.676 seconds
The velocity at impact, v = g×t₁ = 9.8 × 22.676 = 222.2 m/s
The velocity at impact= 222.2 m/s.
You need to connect your doorbell to a battery. You should select wire that will accept the flow of electrons. resist the flow of electrons. accept the flow of protons. resist the flow of protons.
Copper wire is a good conductor of electricity, this means that the electrons in copper valence band are not bound to the cooper nuclei, they can flow down the wire to a more favourable potential. Electron in are negatively charged, which mean they will move to a higher potential at the positive terminal of the battery
Answer:
The answer is he should ride in circles
Explanation:
So that he could distribute the candies equally
But I guess u will do here’s the formula to find momentum if u know the mass u will be able to figure it out
P(momentum)=Mass (m) multiplied by velocity(v)
Pls help me if u know I just gave a qsn. In hindi
Answer:
0.016 s
Explanation:
Initial velocity, u = 0
use the third equation of motion to find the acceleration of the rock.
Net displacement in the vertical direction would be zero. y = 0
Use second equation:
Thus, the rock will return to its initial release point in 0.016 s.